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Study Hints Ambient Radio Waves May Affect Plant Growth

dwguenther writes "A Lyons (Colorado) area woman with no academic pedigree has published a scientific paper in the International Journal of Forestry Research about the adverse effects of radio waves on aspen seedlings. Katie Haggerty, who lives north of Steamboat Mountain, found in a preliminary experiment done near her house that aspens shielded from electromagnetic radiation were healthier than those that were not. 'I found that the shielded seedlings produced more growth, longer shoots, bigger leaves, and more total leaf area. The shielded group produced 60 percent more leaf area and 74 percent more shoot length than a mock-shielded group,' she said." This was not a definitive study, as its author readily admits — it's hard to see how a double-blind study could even be designed in this area — but it was refereed.

298 comments

  1. Not mine. by seanonymous · · Score: 2, Funny

    Mine prefer Drum and Bass

    1. Re:Not mine. by mrmeval · · Score: 5, Funny

      I modulated a 1 kilowatt microwave HERF gun with a microwave stirring device rotated using motor controlled by a PWM signal to vary the speed using an audio source playing White Metal at some plants and the all died. RADIO WAVES ARE EVIL!

      --
      I'd go on a Vegan diet but the delivery time from Vega is too long. --brownkitty
    2. Re:Not mine. by Yvan256 · · Score: 1

      Did you try to play it backwards?

    3. Re:Not mine. by thrawn_aj · · Score: 0, Redundant

      1 kW? And a gun? i.e. directional? You probably burned the shit out of them. A 1 kW infrared gun would be just as (if not more) deadly. More energy absorption in fact. Anything in excess is evil. Sit near a large speaker, go deaf and then shout (naturally) that audio waves are evil too. Did you know that you can die from too much oxygen? Too much water?

    4. Re:Not mine. by noidentity · · Score: 3, Informative

      Whoosh!

    5. Re:Not mine. by toastar · · Score: 1

      Did you know that you can die from too much oxygen? Too much water?

      Wait you can die from too much O2???? I mean I know you can die from too much water... It's called drowning.... But your telling me that people on those O2 tanks at old folks homes are going to die?

      How does this work? Well other then exploding.

      I just have a hard time believing an oxygen bar is worse for you then a hookah bar.

    6. Re:Not mine. by memyselfandeye · · Score: 1

      http://science.howstuffworks.com/question493.htm

      Also, I think I've heard it said to be a carcinogen. Don't know squat about that though, other than a colleague ranting about those ion-air filter gizmos.

    7. Re:Not mine. by mrmeval · · Score: 2, Funny

      I'm scared to. It might sound like Hello Kitty.

      --
      I'd go on a Vegan diet but the delivery time from Vega is too long. --brownkitty
    8. Re:Not mine. by sadness203 · · Score: 3, Insightful

      Drinking too much water can be deadly, it unbalance your blood PH if I remember correctly.

    9. Re:Not mine. by Z34107 · · Score: 1

      The more you know. Evidently too much oxygen can cause cell death, burst alveoli in your lungs, and retinal detachment.

      --
      DATABASE WOW WOW
    10. Re:Not mine. by Anonymous Coward · · Score: 1, Informative

      It's called "oxygen toxicity", and it generally only occurs when the oxygen is inhaled at a higher-than-normal pressure It's the reason SCUBA divers use gas mixtures at depth instead of pure oxygen.

      http://en.wikipedia.org/wiki/Oxygen_toxicity

    11. Re:Not mine. by quenda · · Score: 5, Insightful

      Whoosh!

      Meta-woosh! Nobody could be that dumb. It must have been ironic. Maybe he was trolling for wooshes?

    12. Re:Not mine. by mrmeval · · Score: 1

      BAN DIMONOXIDE!

      --
      I'd go on a Vegan diet but the delivery time from Vega is too long. --brownkitty
    13. Re:Not mine. by Aphoxema · · Score: 1

      Where's the "-1 Didn't get it"?

      --
      "Most people, I think, don't even know what a rootkit is, so why should they care about it?"
    14. Re:Not mine. by mrmeval · · Score: 2, Interesting

      Everything is balance. We ride the fragile zone of a magnetically and gravitationally protective mass where energy is flowing in and near it in prodigious quantities from an incandescent fusion inferno. It is a dangerous place where a steady state is disallowed and change is everything. To unbalance this is to court oblivion but to think it will last forever is folly. It is a seed pod and it will be burst from within or without. Nothing lasts forever ... even change.

      --
      I'd go on a Vegan diet but the delivery time from Vega is too long. --brownkitty
    15. Re:Not mine. by Mister+Whirly · · Score: 1

      Your electrolyte levels, not PH. The medical term is Hyponatremia.

      --
      "But this one goes to 11!"
    16. Re:Not mine. by russotto · · Score: 3, Funny

      Everything is balance. We ride the fragile zone of a magnetically and gravitationally protective mass where energy is flowing in and near it in prodigious quantities from an incandescent fusion inferno. It is a dangerous place where a steady state is disallowed and change is everything. To unbalance this is to court oblivion but to think it will last forever is folly. It is a seed pod and it will be burst from within or without. Nothing lasts forever ... even change.

      Nonsense. Either change lasts forever, or the universe will enter a steady state in which everything lasts forever.

    17. Re:Not mine. by Archades54 · · Score: 1

      I believe oxygen gets converted into free radicals which damage the body, thus we need anti-oxides to help stave off old age. http://www.biobeautybalm.com/oxygen/ (take as you will) http://en.wikipedia.org/wiki/Free_radicals#Free_radicals_in_biology

      Hopefully one of the slashdot biologists can answer further:P

      --
      If your neighbours roof is flying past your window, you know it's cyclone season.
    18. Re:Not mine. by FlyMysticalDJ · · Score: 1

      BAN DIMONOXIDE!

      Di means 2, mono means 1.

      Dimonoxide means a group of 2 of a group of 1 oxygen.

      Dioxide would be the correct word.

    19. Re:Not mine. by Maeslin · · Score: 1

      Don't those ion-air filter gizmos tend to produce a certain amount of ozone? Not carcinogenic afaik but certainly not healthy.

    20. Re:Not mine. by sjames · · Score: 1

      The oxygen bar won't do anything at all. The partial pressure of the O2 has to be above 1 atmosphere to cause serious harm.

    21. Re:Not mine. by Anonymous Coward · · Score: 0

      Ban DIOXIDE too!

    22. Re:Not mine. by Sulphur · · Score: 1

      Meta-whoosh troll?

    23. Re:Not mine. by MaskedSlacker · · Score: 1

      Except that the everything you refer to may in fact be the endless void: http://en.wikipedia.org/wiki/Big_Rip

    24. Re:Not mine. by toastar · · Score: 1

      The more you know. Evidently too much oxygen can cause cell death, burst alveoli in your lungs, and retinal detachment.

      Yeah, Did you read that right... Perhaps you missed the " at elevated partial pressures"

    25. Re:Not mine. by Gerzel · · Score: 2, Interesting

      Bull. That is just making up a statement with absolutely no evidence or proof. Where-as much of the previous assertion does indeed have scientific evidence to back it up.

      1. There is a prodigious amount of energy flowing around our planet produced by the Sun.
      2. If this radiation was not diverted it would indeed be more than enough to kill off most if not all life on Earth.
      3. The make up of the atmosphere plays a large role in radiation absorption and deflection.
      4. The make up of the atmosphere changes over time as evidenced both through findings in the geological record and through modern recordings.
      5. The magnetosphere of the Earth does indeed change as well, again as evidenced both through findings in the geological record and modern recordings.
      6. Man may or may not be able to affect the magnetosphere to any relevant but we certainly are able to produce gases in sufficient quantities to change the atmospheric makeup to affect the atmosphere to a very relevant and perhaps dire degree.

      If on the other-hand you mean this purely in a philosophical sense you are only arguing the meaning of the verb "to be" and existence, again with no evidence and probably not taking into account all available options, as I doubt any human mind can take all options into account in the purely philosophical sense.

    26. Re:Not mine. by thrawn_aj · · Score: 1

      Unless it was a quote from some obscure movie or book, it is extremely likely that OP was dead serious - hence my feeble attempt to un-dumben the world, one /. troll at a time. Are you new to the internet? Have you not seen the numerous message boards out there with what can only be described as "other world physics" being discussed daily with the utmost seriousness? Did you completely miss the globe-spanning hoax email with the cell phone egg-cooker? Look it up. Where radiation is concerned, there is NOTHING that people won't believe.

    27. Re:Not mine. by thrawn_aj · · Score: 1
      Someone posted a 'howstuffworks' link in this thread that answers your question. But yeah, EVERYTHING is toxic, given the right quantity. What we consider to be "generally safe" is merely stuff that doesn't usually occur in toxic doses under normal circumstances. Classic example - hydrogen peroxide (a traditional disinfectant). Here's an excerpt from Wikipedia:

      Regulations vary, but low concentrations, such as 3%, are widely available and legal to buy for medical use. Higher concentrations may be considered hazardous and are typically accompanied by a Material Safety Data Sheet (MSDS). In high concentrations, hydrogen peroxide is an aggressive oxidizer and will corrode many materials, including human skin. In the presence of a reducing agent, high concentrations of H2O2 will react violently. High-concentration hydrogen peroxide streams, typically above 40%, should be considered a D001 hazardous waste, due to concentrated hydrogen peroxide's meeting the definition of a DOT oxidizer, if released into the environment. The EPA Reportable Quantity (RQ) for D001 hazardous wastes is 100 pounds, or approximately ten gallons, of concentrated hydrogen peroxide.

      Simple reasoning - anything that kills germs can kill (or seriously hurt) YOU given the right amounts. ANother example - there have been cases of people actually dying by drinking too much water (and I mean wayyy too much - on a dare).

    28. Re:Not mine. by oiron · · Score: 2, Informative

      At high pressures, O2 is poisonous. Wikipedia has the details...

    29. Re:Not mine. by andreicio · · Score: 1

      I say let's just leave it at whoosh...

    30. Re:Not mine. by CarpetShark · · Score: 1

      Nobody could be that dumb

      Speak for yourself.

    31. Re:Not mine. by HungryHobo · · Score: 1

      actually the antioxidants thing is a scam.

      http://www.guardian.co.uk/media/2007/feb/12/advertising.food

      The antioxidant story is one of the most ubiquitous health claims of the nutritionists. Antioxidants mop up free radicals, so in theory, looking at metabolism flow charts in biochemistry textbooks, having more of them might be beneficial to health. High blood levels of antioxidants were associated, in the 1980s, with longer life. Fruit and vegetables have lots of antioxidants, and fruit and veg really are good for you. So it all made sense.

      But when you do compare people taking antioxidant supplement tablets with people on placebo, there's no benefit; if anything, the antioxidant pills are harmful. Fruit and veg are still good for you, but as you can see, it looks as if it's complicated and it might not just be about the extra antioxidants. It's a surprising finding, but that's science all over: the results are often counterintuitive.

    32. Re:Not mine. by xelah · · Score: 1

      Some do. Avoid them. How is it supposed to help you, anyway? Some use something similar to charge particles in the air and make them stick better to a filter, but emit almost no ozone. Unsurprisingly, HEPA filter air purifiers (which actually work) are quite a lot more expensive.

    33. Re:Not mine. by Anonymous Coward · · Score: 0

      I attempted to replicate the experiment using an array of microwave oven magnetos and a pringle can wave guide (http://www.turnpoint.net/wireless/cantennahowto.html)

      I concluded my northern lights did not grow better. Was more like instant hashish.

    34. Re:Not mine. by g4b · · Score: 1

      Some prefer Reggae.

    35. Re:Not mine. by M8e · · Score: 1

      Internet is like lungs, they are "basically a long series of tubes"!

    36. Re:Not mine. by somersault · · Score: 1

      You seriously think that someone who knows how to set up "a 1 kilowatt microwave HERF gun with a microwave stirring device rotated using motor controlled by a PWM signal to vary the speed" doesn't know that it will burn biological material?

      And the "RADIO WAVES ARE EVIL!" bit didn't tip you off?

      I think you are the one that needs "un-dumbened" in this scenario. Yes, there are a lot of ignorant people out there, but in this case it was clearly a joke.

      Whoosh, indeed.

      --
      which is totally what she said
    37. Re:Not mine. by Muad'Dave · · Score: 1

      Not quite. Oxygen bars can be harmful, so says the FDA as mentioned in the Wikipedia article. From that same article:

      Oxygen toxicity is not associated with hyperventilation, because breathing air at atmospheric pressure always has a partial pressure of oxygen (ppO2) of 0.21 bar (21 kPa) and the lower limit for toxicity is more than 0.3 bar (30 kPa).

      Breathing anything with more than about 30% O2 at 1 atm exceeds the lower limit for toxicity. Breathing 100% O2 at 300 mb would be ok, according to my calculations. The Apollo astronauts traveled in a 100% O2 atmosphere at a pressure of 350 mb or so, according to this article.

      --
      Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
    38. Re:Not mine. by Muad'Dave · · Score: 1

      Even cooler, nearly-pure H2O2 reacting with a silver catalyst is what powers those uber-sexy jet packs as seen in James Bond movies.

      --
      Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
    39. Re:Not mine. by mcgrew · · Score: 0

      TFS: it's hard to see how a double-blind study could even be designed in this area

      Bullshit. Get a large building with two rooms, illuminated with artificial light powered by DC current (easy today, use LEDs), both rooms Faraday cages. Put an RF transmitter is one of the rooms. Populate them with various species, the same species in each room. If the plants in the RF-free room do markedly better than the room with the transmitter then it's definitive. If there's little or no difference then there's no correlation between RF and plant health.

    40. Re:Not mine. by mcgrew · · Score: 1

      Nobody could be that dumb.

      I don't know, some people buy SCO stock. There was a guy a few years ago that caught himself on fire trying to siphon gasoline with a vaccuum cleaner.

    41. Re:Not mine. by noidentity · · Score: 1

      Did you completely miss the globe-spanning hoax email with the cell phone egg-cooker? Look it up. Where radiation is concerned, there is NOTHING that people won't believe.

      I know what you mean. Argh, getting bad Internet on my cellphone, let me put on a couple more of these antenna booster stickers. They really work, if you put enough of them on.

    42. Re:Not mine. by sleeping143 · · Score: 1

      I think he did. "Elevated partial pressure" refers to an abnormally high concentration of one ideal gas in a mixture of them; in this case, oxygen in the air you are breathing. In this case, it has nothing to do with the total pressure.

    43. Re:Not mine. by mcgrew · · Score: 1

      With apologies to the late great Adams, "'Oh I hadn't thought of that' and the universe promptly disappeared".

      If the universe disappeared, you could certainly say that nothing lasts forever, because nothinig would certainly last forever. Which is a strange saying in a universe, since nothing doesn't exist in a universe, especially in a universe where nothing lasts forever.

      Apologies if anyone's head just asploded.

    44. Re:Not mine. by sjames · · Score: 1

      The FDA warned that people with heart or lung disease should not use an oxygen bar. The warning is not the result of any incident or any sort of study, it's just a general suspicion that it might not be a good thing for someone who already has a medical problem.

      It's worth noting that there are two forms of toxicity to oxygen. The one you're talking about here comes from chronic use (days at a time uninterrupted, such as in an oxygen tent) comes on slowly (starting with a cough), and tends to recover fully with discontinuation. You'd have to find a 24/7 oxygen bar and park yourself in the seat there for days at a time. My guess is you'll suffer a DVT before the oxygen harms you.

      Note that 1 bar = 1 atmosphere. So the astronauts at 0.350 mbar were ABOVE the lower limit of toxicity.

      The other sort is CNS toxicity that can cause seizures. That sort can come on quickly and with little warning but only happens at partial pressures above 1 ATM.

    45. Re:Not mine. by thrawn_aj · · Score: 1

      I never denied the whoosh. Mea culpa and all that rot.

      Just remember that there exist the equivalent of script kiddies in the hardware world (and they LOVE to spout technobabble). Terrorists, for instance, can make bombs without any understanding of basic physics by using the ubiquitous 'manuals for dummies' out there. The point is that stupidity is the norm rather than the exception. OP could be either really funny or merely one more radiation noob out of the millions out there. The odds were with me =p

      You, on the other hand, crawled out of the woodwork after a few "whoosh" posts, fairly safe in your assumption that it's the former - delightful. The distinction between "funny" and "batshiat insane" is a close call at best unless you know the person. I applaud your faith in human intelligence.

    46. Re:Not mine. by sabt-pestnu · · Score: 1

      Ah, I see you have an iPhone 4...

    47. Re:Not mine. by Billy+the+Mountain · · Score: 1

      Sounds like a valid approach and relatively simple to do. You could even go a step further and set up more rooms with increasing levels of RF, different frequencies and mixes of frequencies.

      BTM

      --
      That was the turning point of my life--I went from negative zero to positive zero.
    48. Re:Not mine. by somersault · · Score: 1

      I was just adding credence to the notion that it was a funny and original post. I hate when people around here act like all humour must be a quote or a reference..

      --
      which is totally what she said
    49. Re:Not mine. by GameboyRMH · · Score: 1

      On a serious note, in the Mythbusters' "musical plants" experiment, I wonder if the sound waves could be agitating the soil somehow or helping to move nutrients around the plants, aiding the plants' growth. I figure the death metal plants were subjected to the most sound energy. I'd like to see a similar experiment with bass beats vs. a steady tone vs. high-pitched bleeps vs. silence. If my agitation hypothesis is valid I'd expect the bass junkie plants to grow best.

      Next experiment: Plants on a paint shaker XD

      --
      "When information is power, privacy is freedom" - Jah-Wren Ryel
    50. Re:Not mine. by lennier · · Score: 1

      using an audio source playing White Metal

      Well, there's your problem right there. Did you try some '70s funk or acid house?

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    51. Re:Not mine. by mrmeval · · Score: 1

      That would probably turn them into voracious man eating ambulatory plants that are a good source of petroleum substitute.

      --
      I'd go on a Vegan diet but the delivery time from Vega is too long. --brownkitty
  2. Somehow I always knew... by Narcocide · · Score: 5, Funny

    ... that one day AM radio would be the death of us all.

    1. Re:Somehow I always knew... by Torodung · · Score: 2, Insightful

      Good point, maybe if they took Rush Limbaugh and Glen Beck off the air, the plants would get better. She should try shielding them from just their programs.

      --
      Toro

    2. Re:Somehow I always knew... by NatasRevol · · Score: 0, Troll

      It wouldn't matter. Rush would get hyped up on oxy-something-or-other, try to hire a prostitute, get rejected, go buy a chain saw and cut down the entire aspen grove. I've seen it on Intervention before.

      --
      There are two types of people in the world: Those who crave closure
    3. Re:Somehow I always knew... by Anonymous Coward · · Score: 0

      ...what schmucks are modding this 'Insightful'? Get over yourselves.

    4. Re:Somehow I always knew... by Anonymous Coward · · Score: 0

      Bees are also effected by wifi and cellular. Where is capt. planet when we need him.

  3. i don't know about radio, but i find by siddesu · · Score: 3, Interesting

    some plants grow really well when exposed to blue/red light combination from LEDs in a closed room. also, way cheaper and more unobtrusive than using incandescent lamps. (disclaimer for the well-informed slashdotters, i grow hot peppers for my pizzas).

    1. Re:i don't know about radio, but i find by h4rr4r · · Score: 5, Funny

      Sure you do, we all grow our "peppers" in a closet lined with tinfoil.

    2. Re:i don't know about radio, but i find by Anonymous Coward · · Score: 0

      Gotta get your munchies somehow ;)

    3. Re:i don't know about radio, but i find by siddesu · · Score: 1

      double-lined. i need to protect them electronics from the alien EMP.

    4. Re:i don't know about radio, but i find by toastar · · Score: 1

      Incandescent lamps... Lawls

      a 250 HPS goes a long way and it's cheaper then thousands of LEDs.

    5. Re:i don't know about radio, but i find by shaitand · · Score: 2, Informative

      fscking amateurs. foil absorbs light and causes hotspots on your "pepper" plants. You are better off with flat white paint or reflective mylar.

      Of course if you weren't really growing peppers but something like medical marijuana then you'd want to know that experimentation shows that grow is no better under targeted spectrum LED than it is under select HID lighting. In fact, it takes just as many watts of LED to get the same effect so you don't save electricity there.

      The only real benefit to LED is less heat (and need to dispose of that heat somehow) but this is generally outweighed by the insane costs of 600w LED grow lights.

    6. Re:i don't know about radio, but i find by h4rr4r · · Score: 2, Insightful

      If it uses the same wattage how is there less heat? All light eventually becomes heat.

    7. Re:i don't know about radio, but i find by shaitand · · Score: 2, Informative

      Not light that is expended/converted to sugars via photosynthesis.

      The LEDs only emit wavelengths that are used by the plants. Using the right HID lights for the stage of growth does well but nothing like the efficiency of LED.

      600w of LED should be bright but when it is targeted at the plants almost everything is absorbed so you only see a very faint purple (red+blue if you are colorwheel illiterate).

    8. Re:i don't know about radio, but i find by digitalunity · · Score: 1

      It is all about efficiency. High power LED lighting is actually only just recently getting into the same league as HID lighting when measured on a lumens per watt scale. High pressure sodium and low pressure sodium have been kings for a very long time. Sure, they generate a lot of heat, but they generate a lot of light as well. And when you get up to the 400w or 1000w levels, it's really the only economical solution worthy of consideration.

      Small LED's have been produced for some time with higher efficiency than HPS and LPS lighting but scaling them up and retaining that efficiency has been a multi-billion dollar challenge.

      --
      You can't legislate goodness. Let each to his own destiny, by will of his freely made choices.
    9. Re:i don't know about radio, but i find by Khyber · · Score: 2, Informative

      Don't even need an enclosed room. We use LEDs in greenhouses all the time to extend photoperiods.

      Works really well.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    10. Re:i don't know about radio, but i find by Anonymous Coward · · Score: 1, Insightful

      The only real benefit to LED is less heat (and need to dispose of that heat somehow)...

      So it'd be good for avoiding forward looking infrared detection perhaps?

      ...but this is generally outweighed by the insane costs of 600w LED grow lights.

      Getting incarcerated and having all your assets confiscated is much more expensive.

    11. Re:i don't know about radio, but i find by Nebulo · · Score: 3, Funny

      Foil absorbs light? I think you've been "smoking" too many "peppers".

      nebulo

    12. Re:i don't know about radio, but i find by Khyber · · Score: 4, Informative

      "fscking amateurs. foil absorbs light and causes hotspots on your "pepper" plants."

      LOL. I have *NO* problems with any of my foil-lined boxes. ANY improperly-done reflective job will create a hot spot, INCLUDING MYLAR, which is the stuff we use for an EMERGENCY BLANKET.

      "Of course if you weren't really growing peppers but something like medical marijuana then you'd want to know that experimentation shows that grow is no better under targeted spectrum LED than it is under select HID lighting. In fact, it takes just as many watts of LED to get the same effect so you don't save electricity there."

      Dead wrong, sir. I am a licensed medical patient, as well as a breeder for the Dutch (I preserve landrace genetics found in the wild across the globe,) AND I do indoor NFT hydroponics sheds across the globe which are illuminated by LED, and your statement is factually incorrect. From wheat, to tomatoes, to medical cannabis, I've regularly achieved higher yield per kilowatt-hour with LED versus HID. Also, with LED, the resulting product is more potent, as there is no green or yellow light, which plays an inhibitory and regulatory role in most non-marine flora.

      In fact, I replaced 832w of *VERY SELECT* HPS and T5HO lighting with 350w of my specially-designed LED lighting and get the same results.

      I know why LED panels fail to yield. That research went into my own panels. Also, most panel manufacturers use the CHEAP 1w diodes. Those bottom-bin pieces of garbage aren't worth the sapphire substrate they're laid upon. That's also incidentally why the garbage LED panels are so cheap.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    13. Re:i don't know about radio, but i find by Khyber · · Score: 1

      Not over the period of time you're replacing bulbs and removing all that excess heat (not to mention dealing with possible ballast failures plus keeping that cool,) you've spent approximately 400% more energy in the time period of 10 years with HPS versus LED.

      And that's at the same power level, 400w HPS vs 400w LED.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    14. Re:i don't know about radio, but i find by Khyber · · Score: 1

      Thank you, that was what I forgot to mention in my post.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    15. Re:i don't know about radio, but i find by Khyber · · Score: 1

      Nah, it hasn't been a challenge at all. Also, plants don't care about lumens, they care about the overall PPFD they receive. Anybody judging a light by lumens (especially LPS, which are utter GARBAGE for growing plants,) as a means of growing capability has likely been mislead by the HID or underground cannabis industry for far too long.

      600w LED is just as good now as 1000w HPS, assuming you use the GOOD diodes and not the crappy ones that you find in every cheap-ass panel found on ebay and amazon and alibaba.

      I actually had to go out to ensure my equipment was getting top-notch hardware in it before I signed the manufacturing contract.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    16. Re:i don't know about radio, but i find by toastar · · Score: 1

      Yeah no...

      the power issue is real, But Led's just don't give the PAR you need.

      Also... hold the Train, Are you saying a 400 Watts used for HPS is uses more power then 400 Watts of LED's? I hope you know what a watt is.

      To address your note on cooling, Plants in a closed space need air flow anyway. Also since the light is at the top of the room, And O2 rises; you can get rid of the heat and oxygen at the same time. Therefore cooling costs only come into play at about over 400watts.

      From personal experience a 100 watt led is about the same as 100 watts of HPS, But the LED was 4 times the cost. Granted this was about 2 years back when they were still pretty new. Maybe if you were planning a growroom to be in operation 10 years you might make you money back on bulbs and ballasts, But PAR Freq Optimized LED's haven't exactly been around that long.

    17. Re:i don't know about radio, but i find by digitalunity · · Score: 1

      You're correct in that LPS is crap for plants, but it's a good example of efficient lighting that most people are familiar with because most street lights are LPS. In the US at least, dunno about other places.

      HPS is great for any plants, not just cannibis. I haven't tried LED and since I don't do any gardening at all anymore, I doubt I ever will. On paper, it's clearly less efficient at converting electricity into light. I did some amateur indoor tomato farming and am by no means a horticulturist. All I can say is holy cow, HPS is a huge step up from florescent lights which didn't work for shit.

      --
      You can't legislate goodness. Let each to his own destiny, by will of his freely made choices.
    18. Re:i don't know about radio, but i find by Khyber · · Score: 1

      "On paper, it's clearly less efficient at converting electricity into light"

      Actually, watt per watt, Cree just popped 200+ lux/w on LED in the lab. That puts it about 33% better than typical HPS on luminous efficiency alone. Luxeon has 150+ lux/w which makes it pretty much dead-even.

      LED has been viable for a couple of years. People are just getting the wrong types.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    19. Re:i don't know about radio, but i find by Khyber · · Score: 1

      I'd rather NOT be the BG of MMJ, because I have more important things to worry about, such as making this technology viable enough to sustain us in space, which is why I got into the field of opto-electronics in the first place.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    20. Re:i don't know about radio, but i find by Khyber · · Score: 3, Interesting

      "But Led's just don't give the PAR you need."

      Excuse me? LEDs can be 100% PAR. Do you even know which wavelengths are peaked in PAR? PAR matters when you're using a white diode of a specified color temperature. When you go monochromatic on each diode, PAR is a given to be 100% as long as you use the proper wavelengths.

      "Also... hold the Train, Are you saying a 400 Watts used for HPS is uses more power then 400 Watts of LED's? I hope you know what a watt is."

      Did you even read the beginning of the statement where 'removing all that excess heat' is mentioned *BEFORE* any of that? Have you done the research, for that matter? A 400w LED panel will put off far, far less heat than a 400w HPS, thus you will use far less power by not having to cool nearly as much. This is simple thermodynamics, one does not even need to know what a watt is when one knows the glass casing on the HPS is hot enough to light a cigarette but the LED is cool enough to set right on top of the plant without causing significant damage.

      "To address your note on cooling, Plants in a closed space need air flow anyway. Also since the light is at the top of the room, And O2 rises; you can get rid of the heat and oxygen at the same time. Therefore cooling costs only come into play at about over 400watts."

      I can see you've never done this sort of work before. Plants in a closed space at *MINIMUM* need air circulation, not air flow, to prevent air stratification and subsequent burning. With HPS, I needed to vent my closet. with LED, no venting required, just airflow and the occasional dose of CO2. The oxygen from the top gets pumped back into the hydroponics nutrient reservoir, as the root zone requires oxygen. Cooling costs come into play even at 100w HPS, as that bulb is MUCH hotter than a 100w incandescent (you forget ballast inefficiencies as well as another source of heat generation.)

      "From personal experience a 100 watt led is about the same as 100 watts of HPS, But the LED was 4 times the cost. Granted this was about 2 years back when they were still pretty new"

      You got a "NASA-Spec" LED panel, didn't you? You got bit by the marketing, that light ratio is a bunch of nonsense. LED has been used for almost a decade with success, but NOT by following the BS NASA published back in the 80s. My 90w panel performs like a 400w HPS in vegetative phase, and like a 150-200w HPS in fruiting/flowering. Also, most panels use those low-bin diodes, so the one that probably caught your eye by price was of extremely-inferior quality. Hell people are still buying the 'lite-brite' LED panels and complaining that it doesn't work. That's what happens when you don't do the research to determine if a product is garbage or not. To make things even funnier, even the 'experts' over at CandlePower can't grasp the idea that lumens means nothing to plants at all, which automatically disqualifies them as being able to judge a horticultural LED light.

      "Maybe if you were planning a growroom to be in operation 10 years you might make you money back on bulbs and ballasts, But PAR Freq Optimized LED's haven't exactly been around that long."

      You'll make the money back in power costs alone in the first year, and this was proven even in a multi-million dollar NFT shed setup. In fact, I have pictures of multiple shed setups, at least the beginning - http://imgur.com/xpkCI.jpg - there you go, that was the initial setup for multi-stack NFT, and http://imgur.com/ryQrh.jpg that's of a single-tier NFT under some spots and a prototype panel.

      We can even grow animal fodder WITH NO LIGHT AT ALL.

      Our technology is an easy decade ahead of anybody else in the game even though we've only been around for about a year. Why? Real new research instead of copying something done AGES ago.

      Even NASA/Dynamac has my personal cell number.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    21. Re:i don't know about radio, but i find by Xest · · Score: 1

      Blue wavelength light encourages vegetative growth, whilst Red wavelength encourages flowering.

      You'll need both because your peppers come post-flowering, but you could use more blue when the plants are young, and switch to more red when you want to start getting peppers off of them to get the best combination of large healthy plants with plenty of peppers on.

      Personally I just use fluorescent tubes though because they're so cheap and easy to get hold of when they need replacing, and cheap to run too. Also anything of higher light intensity output risks killing off the seedlings anyway.

      It's cacti that I grow, living in the UK though, for me, the cost of heating the greenhouse is far bigger an issue than the cost of lighting the growing area.

    22. Re:i don't know about radio, but i find by Anonymous Coward · · Score: 0

      Wormstrum!

    23. Re:i don't know about radio, but i find by Khyber · · Score: 1

      "Blue wavelength light encourages vegetative growth, whilst Red wavelength encourages flowering."

      This tidbit of information is outdated and not necessarily true for many plants. Cannabis for example, flowers just fine under blue-dominant lighting, as its flowering is triggered by photoperiod, not spectral shift.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    24. Re:i don't know about radio, but i find by rumith · · Score: 1

      I can confirm that; a friend of my recently defended her PhD thesis describing the growth and development peculiarities of Brassica Chinensis when exposed to different combinations of LED lighting - blue, red, and both.
      Her research is a part of a big Russian space project; she works on problems of farming edible plants in spacecraft (with all the problems arising from that). Pretty awesome, if you ask me. An earlier paper of hers on the same subject can be found at Springerlink.

    25. Re:i don't know about radio, but i find by Xest · · Score: 1

      Well, you're right that there are plants where red wavelength light inhibits flowering, but the likely reason (assuming cannabis isn't a naturally winter flowering plant- that I don't know) your cannabis plants are flowering under longer photoperiods is precisely because they are getting more red light (even from a dominant blue light they will get some). But the fundamental point is the same effect could be achieved if they are summer flowering plants by just giving more red light.

      This is the case because phytochromes required to induce flowering react most strongly to red wavelength light- positively to encourage flowering if it's a summer flowering plant, or negatively to inhibit flowering for winter flowering plants. I believe Peppers, at least those from the genus Capsicum, are naturally entirely a summer flowering genus, and so fall into the former category in preferring more red light.

      To clarify, the point is not that red light is essential for flowering in every plant, but that it's the fastest way to get most plants to flower. Just as blue lights aren't essential for growth, but that it's the best way to get healthy growth in most plants and to avoid etiolation.

    26. Re:i don't know about radio, but i find by mcgrew · · Score: 2, Informative

      I don't know anyone who's used LEDs, but a friend was growing some high grade bud using banks of CFLs. More light than halogen, with FAR less heat and electrical consumption, and the plants grew faster and bigger than with halogen.

    27. Re:i don't know about radio, but i find by hackerjoe · · Score: 1

      But if the light were being converted to food energy that efficiently, wouldn't the plant necessarily grow faster? If it didn't end up bigger, it would have to be burning the sugar and turning the energy back into heat...? <head explode>

      (I suspect the real reason is the "600W" LED lights are actually "equivalent in brightness to 600W incandescent grow lights" that draw 100W.)

    28. Re:i don't know about radio, but i find by ShadoHawk · · Score: 2, Funny

      Your ideas are intriguing to me and I wish to subscribe to your newsletter. No seriously... Do you have one?

    29. Re:i don't know about radio, but i find by Khyber · · Score: 1

      CFL works, but when it comes down to it, LED still wins.

      http://imgur.com/oWM8W.jpg

      There's one of my current plants. That's only two weeks into flowering.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    30. Re:i don't know about radio, but i find by Khyber · · Score: 2, Informative

      No newsletter, sadly. I had a blog related to horticulture, but that's currently off-line thanks to hosting issues (namely the guy running my site didn't pay his hosting.)

      I do answer e-mails related to horticultural questions. Just shoot of an e-mail to techkitsune at gmail dot com and I'll try to respond ASAP.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    31. Re:i don't know about radio, but i find by shaitand · · Score: 1

      No we aren't talking about equiv watt lights. Though those do exist.

      1. We are talking about marijuana growing and the only output that counts is flower growth. LED's do cause increased vegetative (leaves/stems) growth but such an increase only increases waste if it doesn't result in more overall flower yield.

      2. The biggest loss of light is caused by the distance of the light from the plant tips. When saying the lights are cooler we generally are referring to the temperature of the light itself which impacts how close you can get it to the tips. LEDs are cool enough to touch and are directional so they require no reflector, HID lighting is extremely hot and the reflector is hot.

      3. The air in a proper grow environment is full exchanged twice a minute. This doesn't affect the theoretical amount of heat produced but it certainly impacts the practical amount of heat produced. If you aren't heating up faster than this air can carry that heat away the heat doesn't matter.

      4. An LED ballast can be touched and LED grows show a lower ambient temp in the grow space vs equal (real) watts of HID lighting, even with a digital ballast.

      An example of a 600w ballast, note it is composed of 600 1w leds:

      http://www.earthshineledlights.com/store/led-grow-lights/600-watt-led-grow-light

      In other places you will see claims that this x watt led is equiv to y watt HID. First, they usually either just make these stats up or compare with Metal Halide (MH) lighting which is a light used only for the vegetative cycle and not the flowering cycle. In other cases they measure vegetative growth versus a High Pressure Sodium (HPS) light... even though this type of light has a spectrum most appropriate for flowering and not vegetative.

    32. Re:i don't know about radio, but i find by shaitand · · Score: 1

      "600w LED is just as good now as 1000w HPS"

      I've never seen a side by side comparison that was favorable to LED given the same wattage, digital ballast for the HID, same genetics, pruning, nutrients, etc. I'm talking bottom line bud yield not veg growth.

      The only ones where I've seen LED come out even used HPS for the entire cycle instead of using MH for veg.

      That may be part of the problem they are trying to use the same panel for both veg and flower instead of using custom spectrum for each.

    33. Re:i don't know about radio, but i find by shaitand · · Score: 1

      LED is quite viable technically watt per watt your 600w led only compares with a 600w HPS when both are used for the full cycle, it just isn't viable financially.

      The cost savings due to waste heat over the life of the light don't add up to the incredible difference in up front cost.

    34. Re:i don't know about radio, but i find by shaitand · · Score: 1

      One would hope you aren't breaking the law in the first place even in the US there are places where medical marijuana is legal.

      That said your infrared is more hype than the law enforcement would like you to believe. In reality there are many many legitimate heat sources that will glow on IR which is why IR alone isn't enough to get a warrant. The same is true for electrical usage which is why that alone won't get a warrant. There are other ways for things to get in your garbage which again, is why that alone will not get a warrant. It takes a combination of the above.

      Also, it may be possible to use IR from choppers in daylight but there is a lot more noise and no law enforcement does it.

      I grew with a valid medical necessity defense (that never had to be tested in court) in the treasure coast in Florida. This is an indoor grow hotspot according to law enforcement and they do random sweeps with IR through the week and a full sweep once a week (this data comes from watching the choppers which ran in grid patterns and a consistent schedule with less than 2hr variance, naturally they don't release this).

      Nothing but the cooling requirements of the plants themselves and intelligent timing was ever required.

      Of course that is for an individual growing for the personal use of less than 4 smokers. If you are running 4+ 1k watt lights things heat up a bit.

    35. Re:i don't know about radio, but i find by shaitand · · Score: 3, Interesting

      "Dead wrong, sir."

      I'm sorry but I fail to see how your complaints about your custom HID lights and custom LED panels relates to the common commercial solutions to which I referred.

      As for aluminum foil, it absorbs 20% of the light you shine at it and converts it to heat. Mylar of proper thickness absorbs only 5%. Nothing used outside a specially crafted lab mirror reflects anywhere close to all the light and even then the mirrors are generally (must be?) made for specific spectrum.

      There is nothing to say you couldn't make a diffuse reflector out of aluminum in fact I have seen them (not for walls but as light reflectors). Regular, out of the box, aluminum foil WILL cause hotspots. I've never been foolish enough to use it but I've seen it.

      Growing for the dutch, or growing for a dispensary in Cali doesn't impress me. I've been hired as a consultant for Dutch and Cali commerical and private growers.

      That said there are a number of other factors that could account for the discrepancy between the results we see. I would be far more interested in hearing more detail about the panels you are using the results you are seeing.

    36. Re:i don't know about radio, but i find by shaitand · · Score: 2, Interesting

      Halogen? Halogen generally isn't a useful spectrum for growing bud.

      What you want is Metal Halide for veg and High Pressure Sodium for flowering.

    37. Re:i don't know about radio, but i find by shaitand · · Score: 1

      That's not bad. Not by any means the most impressive I've seen at that stage of growth of course.

      If you are growing to preserve genetics I suppose it doesn't matter much but if you are growing for yield all that popcorn bud on the lower branches should be trimmed off so the plant can focus energy on the more dense top flowers. This will result in a higher yield by weight.

    38. Re:i don't know about radio, but i find by mcgrew · · Score: 1

      I would expect LED to be better. However, I've only had one LED lamp, in a track light in my dinig room. It lasted two weeks, but one watt as opposed to the the thirty five in the halogen bulbs, and the LED was brighter, was pretty damned good.

      I'm pretty sure the LED I bought was defective. It DID come from WalMart.

    39. Re:i don't know about radio, but i find by h4rr4r · · Score: 1

      How are the leaves a waste?
      Bubblehash.

    40. Re:i don't know about radio, but i find by shaitand · · Score: 1

      That works with trim off the flower which is arguably part of the flower. But with butane extraction you can get something usable by processing even sun leaves.

      Even so, a QP of leaves is only going to yield 1g or so of honey oil. Nobody WANTS more leaf. Butane extraction is just a way to try to get something from your garbage.

    41. Re:i don't know about radio, but i find by Thuktun · · Score: 1

      If it uses the same wattage how is there less heat? All light eventually becomes heat.

      Not sure why this is listed as insightful. The light emitted doesn't necessarily become heat if it's used in a photosynthetic reaction to build the plant.

      The light emitted isn't the issue with heat, it's the waste heat that's emitted along with the light. Around 90% of an incandescent bulb's power input is emitted as heat, but that's nowhere near the case with LED lamps.

    42. Re:i don't know about radio, but i find by mcgrew · · Score: 1

      You're right, they weren't using halogen, they were using HPS. I had halogen on my mind because I just replaced a tracklight with a halogen bulb (dus!). Had they used both they probably would have had better luck with cloning. They only had about a 50% success rate, whereas I usually had nerly 100% using flourescent. I never could get big buds with flourescent, though. They had far better success with banks of CFLs.

  4. ...not all EM radiation by blargfellow · · Score: 2, Insightful

    Otherwise the plants would be dead!

    1. Re:...not all EM radiation by countSudoku() · · Score: 5, Funny

      and us too! Great study, but it comes too late I'm afraid. I've already spotted at least 8 wild trees in urban areas that have sprouted what appear to be cell phone tower transmitters in them! We're boned!

      --
      This is the NSA, we're gonna geet U h@x0r5! Also, what is a h@x0r5?
    2. Re:...not all EM radiation by Yvan256 · · Score: 1

      That would have been a much better scenario than whatever the hell was supposed to be happening in... erm, The Happening.

    3. Re:...not all EM radiation by thrawn_aj · · Score: 1

      We're boned!

      It's like Day of the Triffids with a porno soundtrack =]

    4. Re:...not all EM radiation by ctchristmas · · Score: 1

      is that... 5G?

  5. Double blind should not be hard by h4rr4r · · Score: 3, Insightful

    Have the plants taken care of by one person and judged/reviewed by another who only sees them when they are moved to the review area. Since this is just seedlings using large plant pots should be fine.

    1. Re:Double blind should not be hard by girlintraining · · Score: 4, Insightful

      Have the plants taken care of by one person and judged/reviewed by another who only sees them when they are moved to the review area. Since this is just seedlings using large plant pots should be fine.

      Now probably isn't the best time to tell them the Sun is a giant radio, amongst other things.

      --
      #fuckbeta #iamslashdot #dicemustdie
    2. Re:Double blind should not be hard by h4rr4r · · Score: 1

      Indeed. I just wanted to point out that the "researcher" kept an unnecessary bias in the experiment that basically makes this entire study worthless. Confirmation bias is real.

    3. Re:Double blind should not be hard by girlintraining · · Score: 5, Funny

      Confirmation bias is real.

      No it isn't, and nothing you say can change that!

      --
      #fuckbeta #iamslashdot #dicemustdie
    4. Re:Double blind should not be hard by thrawn_aj · · Score: 5, Funny

      No no. You see, the sun is natural. Which means that it only emits magic sprinkles and unicorn dust. Only the teh ebul radio towers are out to get us.

    5. Re:Double blind should not be hard by shaitand · · Score: 1

      What difference does it make? I doubt her shielding discriminated against sun radio.

      not all radiation is equal, there are different types and they have different effects. The sun emits light, many wavelengths of which are good for plants many are not. UV for example is notably bad for plants.

    6. Re:Double blind should not be hard by h4rr4r · · Score: 1

      golf clap

    7. Re:Double blind should not be hard by riverat1 · · Score: 2, Insightful

      The vast majority of the Sun's EM radiation is in the visible and ultraviolet range. The worst of the UV is intercepted by the ozone layer and life on Earth is well adapted to the visible light range. It would be interesting to compare the relative strength at ground level of the Sun's radio frequency emissions to those from terrestrial sources.

    8. Re:Double blind should not be hard by Anonymous Coward · · Score: 0

      I grew my plans in a Faraday cage, made out of solid copper, to make sure no radiation could get in. Contrary to my expectations, all my plants died. Any ideas?

    9. Re:Double blind should not be hard by LarrySDonald · · Score: 1

      Well, perhaps the sun is part of the problem and plants would be better off getting just the light and not a bunch of the other parts of the electromagnetic spectrum. If true, that's good to know too.

    10. Re:Double blind should not be hard by CheshireCatCO · · Score: 2, Informative

      Actually, the Sun isn't all that bright in the radio. The brightest source in the radio sky is Sag. A*, the center of our galaxy.

      (Or so I was taught the summer I did research at the VLA.)

    11. Re:Double blind should not be hard by Khyber · · Score: 1

      Comparing the insolation before and after atmospheric/van-allen/magnetic field filtering has already been done (i used that data to construct my LED panels,) we just need to know what's happening terrestrially.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    12. Re:Double blind should not be hard by tthomas48 · · Score: 1

      The problem is how does one "shield" plants without drastically affecting their environment?

    13. Re:Double blind should not be hard by sjames · · Score: 2, Interesting

      I see your point, but it's also true that all life on Earth evolved with the solar emissions, none evolved with microwave QAM emissions (for example).

      It's not time to order radio silence by any means, but followup studies are warranted.

    14. Re:Double blind should not be hard by Minwee · · Score: 1

      Now probably isn't the best time to tell them the Sun is a giant radio, amongst other things.

      The sun emits light and heat as well, in proportions which most life on Earth has evolved to deal with. Strangely increasing that light and heat with a magnifying glass seems to have negative results on the growth patterns of ants.

      Just because someone sounds like a crackpot doesn't always mean that they are wrong. Even a stopped clock wearing a tinfoil hat which is convinced that 9/11 was an inside job masterminded by Elvis and JFK as part of their plan to infect children with autism through vaccinations can be right sometimes.

    15. Re:Double blind should not be hard by victorhooi · · Score: 1

      heya,

      I didn't know what VLA was in this context, so I did a Google search..so...err, which VLA? Lol.

      Cheers,
      Victor

    16. Re:Double blind should not be hard by Anonymous Coward · · Score: 0

      Did you just suggest that "sun radio" is different than "earth radio"? and that it would thus be affected by shielding differently?

      Yikes.

    17. Re:Double blind should not be hard by NatasRevol · · Score: 1

      Put a reflective sunlight in :-)

      --
      There are two types of people in the world: Those who crave closure
    18. Re:Double blind should not be hard by MaskedSlacker · · Score: 1

      No, he said the exact opposite. Learn to read.

    19. Re:Double blind should not be hard by MaskedSlacker · · Score: 1

      Very Large Array, the radio telescope. You know, the only VLA that makes sense in context (talking about radio sources in the sky...), and the FIRST hit on google. Were you really that lazy?

    20. Re:Double blind should not be hard by thrawn_aj · · Score: 1

      Agreed. I just couldn't resist before =]

    21. Re:Double blind should not be hard by aylons · · Score: 1

      Actually, people do there all the time. There are lots of tables and graphs of sun's noise temperature, tellin the engineers how much noise you should expect coming from the sun in every frequency, season, place on Earth (or outside it - really, sattelites often get this noise), azimuth, zenith, or whatever.

      The fine print: nobody wants an antenna to to look straight to the Sun. The noise from it becomes a real problem, specially in higher frequencies.

      E.g, satellite TV, at least here in Brazil, stops working for a up to an hour a day for some weeks because of it. This happens twice a year, and its cause is the Sun getting behind the satellite (or the other way round, as Copernico told us).

      --
      This comment may contain speech figures. Reader discretion is advised.
    22. Re:Double blind should not be hard by TheUser0x58 · · Score: 1

      If the Sun generated EM with the same amplitude and frequency characteristics as a man-made radio transmitter, how could man-made radio transmissions be separated from interference from the Sun? Calling the Sun a "giant radio" is at best a misleading oversimplification.

      --
      -- listen to interesting music, support independent radio... WPRB
    23. Re:Double blind should not be hard by smallfries · · Score: 1

      That would not be a double-blind study. If the person who is looking after the plants is aware of which ones are shielded it could affect their levels of care for each of them. Using a separate judge would not fix this problem.

      But a proper double-blind trial is trivial. Setup a set of "hoods" for the plants. Make half of them shielded and half not. Don't let the person tending the plants know which are which. Do the judging first and then reveal which plants were shielded and which were not afterwards.

      Come on people, this is really basic shit here.

      --
      Slashdot: where don knuth is an idiot because he cant grasp the awesome power of php
  6. Double blind study by bunyip · · Score: 5, Informative

    it's hard to see how a double-blind study could even be designed in this area

    In the medical field, it means that both the patient and the doctor evaluating the symptoms don't know who received a placebo.

    For this experiment - setup two antennae in front of some seedlings, have a different dude turn one of them on. The person measuring the seedling growth doesn't know which were exposed to radio waves. That's all you need to make sure the study doesn't have some bias in it.

    1. Re:Double blind study by martinX · · Score: 4, Interesting

      I don't see why you'd need a double-blinded study in this? The double-blinded study is to account for patient reporting bias ("I feel a little better today - I think those new Addrexo pills are really working") and patient-selection bias by the doctors.

      In this case the plants aren't reporting anything, it is a simple measurement, or series of measurements. And is anybody really calling into question the biases of biology RAs? Once again, take the measurements, report the results, draw conclusions, suggest reasons, conclude: "more research needed".

      --
      When they came for the communists, I said "He's next door. Take him away. Goddam commies."
    2. Re:Double blind study by Anonymous Coward · · Score: 0

      Mod parent up. Anyone advocating blinded studies in this case is actually suggesting plants are affected by their subjective interpretation of the situation.

      The plants biomass can simply be weighed and does not have to be interpreted.

    3. Re:Double blind study by h4rr4r · · Score: 4, Informative

      The study surely needs to be blind from the researchers point of view, this sort of this is just begging for confirmation bias.

    4. Re:Double blind study by moonbender · · Score: 3, Funny

      If any of the researchers are used to talk to their plants while gardening, they shouldn't mention the experiment to the seedlings, though. You know, just to be sure.

      --
      Switch back to Slashdot's D1 system.
    5. Re:Double blind study by Anonymous Coward · · Score: 0

      A double-blind study isn't just for patient reporting bias, its also required to prevent the observer from influencing the measurement even on a subconcious level. Further, things like coclour do

    6. Re:Double blind study by flowwolf · · Score: 4, Informative
      When it's a medical study, it's accounting for a patient's bias.
      Scientists can have bias as well, this is why researchers use the double blind method to eliminate their personal bias from the results.

      Personally, I think the shielding worked more as a cozy for the plant and gave it a more stable immediate environment upon which to grow. Perhaps even the faraday cage was diminishing the light around the geraniums, so they spent more energy growing their leaves bigger to compensate. Given my personal bias, I wouldn't of published yet since I know there couldn't be a correlation. There are any number of reasons why a bias of opinion might be involved and there is any number of reasons why plants in a cage could grow better than plants not. I doubt she had the soil, in which the roots were, wrapped with a faraday cage either.

    7. Re:Double blind study by jbeach · · Score: 1

      In theory, because plants are living things, they could benefit differently from different sorts of attention paid to them. It's a slight possibility, but not so completely impossible that it isn't worth ruling out for a valid test.

      http://en.wikipedia.org/wiki/Plant_perception_(paranormal)#Skepticism

      --
      The Invisible Hand of the Free Market is what punches workers in the nuts.
    8. Re:Double blind study by shaitand · · Score: 1, Funny

      "Anyone advocating blinded studies in this case is actually suggesting plants are affected by their subjective interpretation of the situation."

      You say that as if we shouldn't consider the possibility. Go watch avatar n00b

    9. Re:Double blind study by LarrySDonald · · Score: 1

      Or, rather then checking yourself, remove all shielding and have someone without knowledge evaluate them returning their eval in writing naming only which aspen and what condition. If you want to do another round, replace shielding and wait. If you think it matters to the aspen who knows, I can't help. This would still be kind of weak, but at least eliminate one huge bias and can be done with only one wise-to-aspen accomplice.

    10. Re:Double blind study by Anonymous Coward · · Score: 0

      When it's a medical study, it's accounting for a patient's bias.
      Scientists can have bias as well, this is why researchers use the double blind method to eliminate their personal bias from the results.

      Wow. This is asounding to me.

      On a site that is supposed to be populated with those familiar with the scientific method, how many people don't understand the difference between blind and double-blind - and then proceed to lecture those who do understand the difference.

      You're the third person to demonstrate complete ignorance of this difference, and yet you got modded up to 4.

    11. Re:Double blind study by n3umh · · Score: 4, Interesting

      Personally, I think the shielding worked more as a cozy for the plant and gave it a more stable immediate environment upon which to grow.

      Read the paper. Haggerty had two cages, one of which was RF-transparent fiberglass which was close to the same air and light blockage as the aluminum faraday cage.

      I still think it will come out that something else was the cause.

      But as far as personal bias, a good scientist is aware of their own biases and tries to do things that are somewhat antagonistic to their own point of view. This isn't perfect, but that's why you use objective measures and report all your methods. Someone else can try to reproduce the experiment, improve upon it, control for more things, etc.

      It is possible that subconcious/unconcious biases in plant care play a role here, but anyone can repeat the experiment, and it's very likely that those repeating it next will be VERY skeptical to the idea that RF is at fault and will be very careful not to baby the RF caged plants.. and if biased they'll be biased the other way. That's a good outcome of such a publication.

      Many repeated experiments by people who are skeptical of each other average over personal biases.

    12. Re:Double blind study by riverat1 · · Score: 1

      Radio waves don't penetrate the soil much. Unless the Faraday cage was tapered down to barely big enough to go around the trunk as it comes out of the ground I imagine it would shield the root area reasonably well anyway.

    13. Re:Double blind study by blackraven14250 · · Score: 2, Interesting

      Thanks for illuminating the difference with your post, since you know it all and aren't willing to share.

      Now, I was pretty sure that "blind" eliminated the bias of the subjects of the study (Pepsi challenge style), while double blind eliminates the scientist's bias as well as the subjects (drug trials). The GP may be talking about the medical studies like they use blind studies when they really use double blind (technically a form of blind study), but other than that, I see no reason he's wrong in saying they use double blind to remove the experimenter's biases. If you have some information that's different from this, please share it.

    14. Re:Double blind study by sjames · · Score: 1

      There were sham shields used to try to prevent those effects, it's just that the researcher knew which were sham.

    15. Re:Double blind study by blackraven14250 · · Score: 1

      "Double blind", in this case, isn't used to refer to the utterly technical double blinded studies we're used to, but rather the fact that the experimenter is blinded, since the very term "blind study" isn't typically used to refer to removing the experimenter's bias. It's a case of using the typical implied meanings of the terms rather than the fully technical and proper definition.

    16. Re:Double blind study by NatasRevol · · Score: 1

      What, no "in your face, dickwad" to the AC? It's not like he didn't deserve it.

      --
      There are two types of people in the world: Those who crave closure
    17. Re:Double blind study by Chris+Rhodes · · Score: 1

      The actual article doesn't mention using a double-blind study. It mentions increasing the number of subjects. It doesn't directly mention bias.

      If the caretaker does not give the exact same care to all of the plants because they feel more or less possessive towards one or more of the plants, this creates a bias. For example, if they water one plant more thoroughly, or selected a better spot for it. It is very easy to produce a bias in plant experiments.

      The same applies for experiments on groups of plants.

    18. Re:Double blind study by repapetilto · · Score: 1

      yea the thing is its kind a waste of time and money for people to repeatedly perform the same badly controlled experiment over and over. You can find out the same thing faster and cheaper if you just design it well to begin with rather than waiting for everyones individual biases and differences in technique to average out.

    19. Re:Double blind study by mrmeval · · Score: 1

      It's hard because of the variables. If there is no gross and immediate deformity then you end up with so many other things that can cause damage that the test is irrelevant.

      I'd suspect you'd need clones. You'd need to Faraday cage some with ground, Faraday cage some without ground, and leave off the cage and wire the sensors as identically as possible. In this endeavor you'd also want to duplicate this multiple times with different researchers. You're trying to smooth out the differences. Then there is the cost. At some point a cry for a sealed environment and other expensive toys will come.

      Very hard. It's why 'standardized' lab animals, plants, microorganisms are in demand.

      I wish this was as simple as physics.

      --
      I'd go on a Vegan diet but the delivery time from Vega is too long. --brownkitty
    20. Re:Double blind study by n3umh · · Score: 3, Insightful

      yea the thing is its kind a waste of time and money for people to repeatedly perform the same badly controlled experiment over and over.

      Sure, I agree with that. The next experiment should control for more variables. It's straightforward to improve upon the methods to leave less doubt. You can also do an experiment to show that some OTHER effect was likely responsible. Formulate another hypothesis that would explain Haggerty's data and test those ideas directly.

      But if the people with the resources don't care about this particular issue, no one will do the experiment.

      You can find out the same thing faster and cheaper if you just design it well to begin with.

      I think if Haggerty had managed to get "no difference" among the three cages, no one would be calling for a better experiment, even though it would have been equally uncontrolled. We need to think about this.

      Even if we ultimately prove that Haggerty's hypothesis is incorrect, she took a stab at addressing what she perceives as a gap or mistake in knowledge in the RIGHT way. There is no bad experiment as long as you are trying your best within your resources and acting ethically. There are unfortunate consequences of the media and concerned groups trumpeting EVERY paper as "the truth," but if that happens it is not really Haggerty's fault (IMO, after reading the paper.)

      Haggerty did the right thing with her concerned skepticism. When was the last time you saw someone concerned about RF do something other than blog endlessly about RF sensitivity or spout mumbo-jumbo about the balances of life force?

      Haggerty designed an experiment that controlled for a number of significant variables while changing the RF applied to the plants in a measured way. That's doing it right. Nothing is perfect. You can never control for ALL variables and there is always a need to minimize the impact of that. But you have to start somewhere, and if you have a fringe idea, that will probably be YOU in your own backyard.

      Honestly, this takes the wind out of a lot of science **deniers'** sails. It's strong evidence against scientific conspiracy; evidence against "burying" of "weird" ideas. This person with no formal scientific credentials got a paper published that's based around a pretty deeply fringe idea. She deserved that publication on the basis of actually applying decent, if low budget science and getting a result.

      I suspect that it won't be very long before there's a flurry of other careful experiments that explain Haggerty's results with a different interpretation of the causes. There will probably be theory papers on the spectral limits of the response of plants (as she cites some papers on outside-of-the-visible-light effects on plants).
      It's not going to take that much time or that much money to refute this result, and in the meantime, Haggerty's publication suggests that properly executed scientific inquiry stands on its own, independent of preconcieved notions or weirdness of the result.

    21. Re:Double blind study by repapetilto · · Score: 1

      Yea I posted that before realizing she was just some lady, it is pretty awesome.

    22. Re:Double blind study by Khyber · · Score: 1

      "PLANTS ARE NOT SENTIENT, THEREFORE HAVE NO BIAS,"

      Just because one is not true does not mean the other COMPLETELY UNRELATED thing is false.

      In the plant world, plants are biased towards their relatives. They can pretty much identify genetic siblings and will (usually) not compete for nutrients or root space or sunlight. On the other hand, two plants of the same species but unrelated parents will compete like mad for nutrients and sunlight and root space.

      Also, the double-blind would be useful in this experiment, by removing knowing which plants were being directly irradiated except for the one picking the plants to be irradiated, while the other person handles the rest of the caretaking responsibilities.

      Pretty sad your logic fails so easily.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    23. Re:Double blind study by Anonymous Coward · · Score: 0

      I wouldn't of published yet

      have -> 've
      Just because they sound the same, doesn't mean they are the same...

    24. Re:Double blind study by blackraven14250 · · Score: 1

      I said that too, just with reasons why he's being a dick, rather than an explicit mention of his bungholiness.

    25. Re:Double blind study by flowwolf · · Score: 1
      The plants of course are the subjects of the experiment. Since we assume they do not have any conscious bias (there's really no way to know because we're not a plant), we can assume that any test with plants as subjects is at least a blind test. Given that the subject is unaware of the test, we're half way there. To properly double blind the test, we still have to remove the researcher's bias.
      But wait, there's more! The plants are bias towards some conditions. Some plants enjoy cages for instance. It gives them a lattice on which to grow. Perhaps the geraniums inside the faraday cage simply grew more because of the structure they were provided. In order to remove this possible bias of a plants preferred place to grow, we would create 2 cages that appear alike, 1 being non conductive. These cages would be used over 3 plants. 2 covered and 1 left alone for control.

      Human opinion isn't the only way for bias to form and sentience isn't required to be capable of observing local conditions. The first thing any researcher should be doing is considering how we can eliminate any kind of exterior influence from the test. A controlled environment so to speak. Claiming that only sentient humans can have bias shows a complete lack of understanding for the scientific method. I may not be the most enriched scientific thinker here, but I think it is you who should become more scientifically literate. Bringing emotion and petty name calling to critical thinking is rarely a good approach (but when it is, it sure is fun!)

    26. Re:Double blind study by martinX · · Score: 1

      I disagree. I trust the scientist(s). This is a relatively simple experiment and one that is able to be replicated. Because it has been published, the method is there so people can replicate it. Although my boss suggested (ever so slightly) that published papers in medical research might leave one or two details out so anyone trying to replicate the experiment would have to contact the original researchers. That way, you keep an eye on who is following you and your research.

      I've done the research thing and never was I tempted to make something out of nothing, even though it would have validated a shitload of my labour. One reason is that other people were relying on the quality of my results and if I screwed it up, I would be found out eventually and my name as a researcher would be mudd. Being good is better than being right.

      --
      When they came for the communists, I said "He's next door. Take him away. Goddam commies."
    27. Re:Double blind study by WindShadow · · Score: 1

      How do you do a double blind when the "patient" is a plant? And why? To eliminate the placebo effect? I think this is muddy thinking, the evaluation could be blinded by taking photos and measurements of the various plants, not showing the cage or lack thereof, and letting whatever scientists are appropriate look at the data rather than the plants in situ.

  7. No double-blind? by PIPBoy3000 · · Score: 3, Insightful

    Why not create two sets of identical-looking Faraday cages, one metal and the other non-conducting plastic. Randomly hand them out to experimenters and let them figure out which is which after the results are in.

    1. Re:No double-blind? by Yvan256 · · Score: 1

      Make one ferrous metallic (steel), one non-ferrous metallic (aluminium), one non-metallic (plastic) and one gaseous (just to see the confused look on your face).

    2. Re:No double-blind? by fake_name · · Score: 1

      Make two real Faraday cages.

      Put a real radio broadcast antenna in each.

      Only turn on one of the antenna.

      This also eliminates other possible causes for variation, like "plants grow better in a metal cage" or "A faraday cage gives a plant better shade"

    3. Re:No double-blind? by Anonymous Coward · · Score: 0

      Quickly make lots of Faraday cages.

      Sell to /. crazed amateur biologists.

      Profit.
       

    4. Re:No double-blind? by metrometro · · Score: 4, Informative

      Yeah, that's pretty much what she did. Wasn't double blind, but she used real Faraday cages and placebo cages in fiberglass, along with another non-caged control. Should be easy enough to replicate, only with uninformed interns watering the plants.

    5. Re:No double-blind? by BillX · · Score: 1

      FTFA, it sounds like that's exactly what she did. There was even a control with no covering at all:

      "one group in a shielded Faraday cage, another group in a cage wrapped in fiberglass that did not block radio waves and a third set was unprotected altogether."

      --
      Caveat Emptor is not a business model.
  8. Right by SnarfQuest · · Score: 0, Redundant

    Or, you could probably also say, that plants given lots of sunlight and with a protective barrier against insects and other vermin grow better than those placed in a dark alley filled with rats of unusual size.

    Like most of these studies that the news media have orgasms over, I suspect that they would be able to find whatever they wanted to prove. Science without mathematics, indeed.

    --
    Who would win this election: Andrew Weiner vs Andrew Weiner's weiner.
    1. Re:Right by jaroslav · · Score: 3, Informative

      While that may be true quite often in the media, nothing in the story suggests that's the case here. She had three sets of plants, one shielded with a Faraday cage, one shielded in fiberglass, and one completely unshielded. Her results aren't simply a lack of insect damage.

    2. Re:Right by phantomfive · · Score: 5, Insightful
      Yeah, you know, what's the likelihood that someone designing the experiment would have thought of the same problems you thought of in 30 seconds since reading the summary? If you read the article, there were three groups:

      In spring 2007, she planted the aspen seedlings -- one group in a shielded Faraday cage, another group in a cage wrapped in fiberglass that did not block radio waves and a third set was unprotected altogether. By the end of July, there were measureable differences in growth, and at the beginning of October, she noticed differences in coloration.

      It's one thing to criticize a study, but at least try to READ it first.......

      --
      Qxe4
    3. Re:Right by h4rr4r · · Score: 1

      Since she knew which was which, confirmation bias seems rather likely.

    4. Re:Right by SnarfQuest · · Score: 0, Flamebait

      And, how did these shields affect the abaility of rain (water) to reach the plants? Were the ones in the farady cage given more water/care than the others? Were they all given the same exact soil mix to grow in? Just how unbiased was this person? If they were hoping for a specific result, there are a lot of things they could do in an "experiment" like this, even without thinking that they are doing such things. That is why the caretaker of an experiment should not know which sample is the one they are hoping will do the best.

      Heck, she could have allowed her dog to pee on the unshielded ones, which would account for the color differences. Unless you protect a study like this from bias, you might as well not bother doing it in the first place. It's only good as just another media fear blitz, and not much else.

      --
      Who would win this election: Andrew Weiner vs Andrew Weiner's weiner.
    5. Re:Right by n3umh · · Score: 3, Insightful

      Just how unbiased was this person? If they were hoping for a specific result, there are a lot of things they could do in an "experiment" like this, even without thinking that they are doing such things.

      Do the experiment yourself and find out. You're skeptical so if anything, you'll have the opposite bias. That's how this works.

      No human being is 100% free of subconcious bias. A good scientist will do everything they can to perform objectively identical actions on all members of their various experimental organisms. IN that way, they will minimize the effect of their own biases. And others can reproduce the same objectively identical actions to gather more data.

      Haggerty's paper suggests that she attempted to be careful in this regard. She explicitly presents her method. That's one way we know that she was trying to avoid her personal biases.

    6. Re:Right by c0lo · · Score: 1

      Like most of these studies that the news media have orgasms over, I suspect that they would be able to find whatever they wanted to prove. Science without mathematics, indeed.

      Yeap. Parasite Correlated With World Cup Success - that's science indeed.
      /.-ish science, but covers all your needs (meant to be ironic, not sarcastic - after all, I'm wasting my time on /. too).

      --
      Questions raise, answers kill. Raise questions to stay alive.
    7. Re:Right by sjames · · Score: 1

      It isn't ruled out, which is why the study is merely 'interesting' and 'should be followed up' rather than 'OMFG turn off that radio!!!'.

      Since she did use objective measurements, the role of confirmation bias is limited.

    8. Re:Right by Anonymous Coward · · Score: 0

      It's one thing to criticize a study, but at least try to READ it first.......

      Please take your logic and sensibility elsewhere sir, we don't want any of that sort of thing here!

    9. Re:Right by x14n · · Score: 1

      More from TFA

      "From 1.0MHz to 3.0GHz, its effectiveness in attenuating RF signals was found to vary from 40dB to 73dB across the entire range of frequencies (Figure 1). Theoretically, an enclosure made of this material would reduce signal intensity by a factor of 104 to 107.3, blocking essentially all ambient RF energy, including the naturally occurring RF background."
      "In both the mock-Faraday cage and the uncaged area, numerous stations were received in the AM and FM bands. A sweep of RF background at the site, June 6, 2009, using an Anritsu spectrum analyzer, showed that field intensity ranged from 117dBm to 87dBm at frequencies from 1 to 1,000MHz. Mean field intensity was 109dBm. "

      She definitely did her homework.

      As a society, we spent the 20th century establishing that the *energy* in various sources of radiation like lasers, microwave ovens, radioactive decay, etc. etc. can damage and kill living organisms. Yet much work remains to exactly how the information encoded within radiation effects and is processed by organisms.

      Imagine living the first 5 years of your life awash in a constant 60-70 decible wash of white noise. It wouldn't cause organic "damage" by harming your ears, but it's not hard to see how it could hinder, say, language acquisition...

  9. Re:If it's not a definitive study... by Anonymous Coward · · Score: 0

    Nothing is totally definitive.

  10. Hints? Might? by DaveV1.0 · · Score: 1, Insightful

    Come back and talk to me when you have a more definitive study. Something statistically significant that doesn't focus on one species in one location. Oh, and let's see the methodology used to make sure it is actually a sound experiment because an American amateur scientist is did this one and I really don't trust most of my fellow Americans to do amateur science correctly.

    --
    There is no "-1 offended" or "-1 you don't agree with me" mod options for a reason.
    1. Re:Hints? Might? by Anonymous Coward · · Score: 0

      Nobody is talking to you, except me.

    2. Re:Hints? Might? by n3umh · · Score: 5, Insightful

      I have a deep concern about over-stating the dangers of RF radiation... honestly, though, I don't see anything wrong with the PAPER and would say that Haggerty
      approached the experiment in an appropriate scientific manner.

      Come back and talk to me when you have a more definitive study.

      This is not a perfect experiment... no experiment is. But the methodology is laid out. The experiment is reproducible, and that's what matters. I think it may spark interest in study... very likely from people who are VERY skeptical that RF could be the cause, and that's perfect.

      I think that it's probably the case that something else is the cause, not RF. There are things that aren't controlled for. But you or anyone else can do a better experiment. You're right to be skeptical of a single one, but that doesn't mean Haggerty's work wasn't valuable.

    3. Re:Hints? Might? by CheshireCatCO · · Score: 1

      This is not a perfect experiment... no experiment is. But the methodology is laid out. The experiment is reproducible, and that's what matters. I think it may spark interest in study... very likely from people who are VERY skeptical that RF could be the cause, and that's perfect.

      Yes, but it's also sparking headlines now. Headlines which don't really make people realize that this study is crazy inconclusive. So later, when more research is done (which will probably show no effect, that's my prediction), people won't see that report. Negative results seldom make headlines and even if it did, the same people wouldn't necessarily read it or internalize it. We've seen this time and again: someone publishes an sensational piece and later all or part of it proves to be wrong. People never remember the correction. That's why politicians overstate things and correct themselves later.

      So announcing this very inconclusive study to the media at all really does do harm, I'd say.

  11. Or, better yet by Sycraft-fu · · Score: 1

    Build a large Faraday cage in a greenhouse. So you've got a nice area for plants with no stray radio waves. Then, put in antennas that will transmit the radio waves you want at the frequencies and power you want. Build several such greenhouses and fill them with the plants you'd like to test. Have them so that they are all controlled in terms of humidity and so on to be the same, but have the radio settings assigned by a computer randomly. At the end of the experiment, go around, have a look at the plants, make subjective observations and objective measurements. Then, have a look at which cages got what radio waves.

    Really would not be that hard to set up, and probably not all that expensive. However I have a feeling it won't be done because the radio wave paranoia is just more of the general purpose "radiation" paranoia that has been around for a long time. They aren't really interested in having their views tested.

    1. Re:Or, better yet by metrometro · · Score: 1

      RTFA - not a lot of paranoia in the story.

    2. Re:Or, better yet by honkycat · · Score: 1

      This is how to do it. A greenhouse isn't really necessary, just set up a set of seedlings with identical shields and transmitters inside the shields. Someone other than the experimenter constructs the transmitters identically, except that on the control copies, the power switch is not wired up. The builder labels them with arbitrarily assigned numbers, keeps his own notes on which are live, then seals the boxes and hands them over. At the end of the experiment, he hands over his notebook for the big reveal. This study seems to have been a good start---a less rigorously controlled study can be a good starting place since it's less complicated and less expensive, but it's just a starting point.

  12. A word on simple experiments... by copponex · · Score: 5, Insightful

    Remember, Louis Pasteur only finally disproved the theory of spontaneous generation with a simple experiment involving meat broth and a long necked decanter. http://en.wikipedia.org/wiki/Spontaneous_generation

    There's no reason to doubt that the certain frequencies we consider harmless are in fact slowly destroying delicate parts of our biosphere. We're the same scientists who didn't think lead paint or asbestos were a problem, and discovered germ theory only a short time ago. The article itself is not sensational, and even the DIY scientist is modest in her conclusions.

    1. Re:A word on simple experiments... by h4rr4r · · Score: 2, Insightful

      There's no reason to doubt that the certain frequencies we consider harmless are in fact slowly destroying delicate parts of our biosphere

      Sure there is. 1. nothing noticed so far 2. the sun dumps all kinds of EM on everything.

      Lead paint is not an issue if you do not eat it. Asbestos is a great insulator and fine to use as such if it is properly sealed.

    2. Re:A word on simple experiments... by copponex · · Score: 5, Insightful

      2. the sun dumps all kinds of EM on everything.

      This is where critical thinking comes in handy. I don't think any serious scientist will suggest that plants are not well adjusted to EM radiation from the sun.

      As far as "nothing noticed so far," I imagine that was the same phrase they used when they were handling raw mercury without protection in science labs not too long ago. Ignorance is no substitute for reality.

    3. Re:A word on simple experiments... by shaitand · · Score: 3, Informative

      "1. nothing noticed so far"

      Sure there is. There is a steady increase in C02 Levels in the atmosphere. This should result in a corresponding increase in plant growth since plants are largely bottlenecked by the relatively low C02 levels in the modern vs the 1500ppm that existed when they evolved. Plants should be able to balance any increase in C02 emissions and yet they aren't.

      "2. the sun dumps all kinds of EM on everything."

      The sun also dumps UV radiation which is known to be harmful to both plants and animals on everything.

      Just because it is a natural process doesn't make it good or balanced. The whole natural good, artificial bad myth is just some nonsense spouted by hippies. Nature is just as good at screwing it up as we are (even if you don't consider us a byproduct of nature) it just tends to do it on a larger and more difficult to counteract scale.

    4. Re:A word on simple experiments... by Anonymous Coward · · Score: 1, Insightful

      Lead paint is not an issue if you do not eat it. Asbestos is a great insulator and fine to use as such if it is properly sealed.

      That's an absurd statement.

      Releasing lead that had previously been entombed underground into the surface environment means that eventually it will end up in all sorts of living things whether you, personally, intentionally, ate it or not. It's an issue.

      And there's no such thing as properly sealed. PCBs in transformers were supposed to be properly sealed too, but of course they were eventually found to be leaking. You have to assume that anything dangerous is going to get out of its container somehow. If you can't totally eliminate its uses, you at least reduce them to the point where the tradeoff between the importance of the application and the odds of leakage are considered acceptable.

    5. Re:A word on simple experiments... by John+Hasler · · Score: 1

      > I imagine that was the same phrase they used when they were handling raw
      > mercury without protection in science labs not too long ago.

      For the very good reason that doing so is not particularly dangerous as long as you don't heat it.

      --
      Warning: this article may contain humor, sarcasm, parody, and perhaps even irony. Read at your own risk.
    6. Re:A word on simple experiments... by Anonymous Coward · · Score: 0

      Uhh, if the sun really did dump "all kinds" of EM on everything, in amounts anywhere similar to those from sources on or near Earth, then we wouldn't be able to use any form of wireless communications on this planet. And apparently she did notice something so that point is wrong too. Sure it needs more study to find out more, but she did not "notice nothing".

    7. Re:A word on simple experiments... by h4rr4r · · Score: 1

      Elemental mercury is pretty safe assuming STP. Ignorance seems to be your specialty.

    8. Re:A word on simple experiments... by h4rr4r · · Score: 1

      UV is EM. I never said anything about nature being safe, in fact I meant that to indicate that the plants were being exposed to something quite unsafe already.

    9. Re:A word on simple experiments... by Eudial · · Score: 1

      There's no reason to doubt that the certain frequencies we consider harmless are in fact slowly destroying delicate parts of our biosphere. We're the same scientists who didn't think lead paint or asbestos were a problem, and discovered germ theory only a short time ago. The article itself is not sensational, and even the DIY scientist is modest in her conclusions.

      There is always reason to doubt. Seriously, learn to science.

      --
      GAAH! MY PRINTER IS ON FIRE!!! PUT IT OUT! PUT IT OUT!
    10. Re:A word on simple experiments... by timmarhy · · Score: 0
      "Sure there is. There is a steady increase in C02 Levels in the atmosphere. This should result in a corresponding increase in plant growth since plants are largely bottlenecked by the relatively low C02 levels in the modern vs the 1500ppm that existed when they evolved. Plants should be able to balance any increase in C02 emissions and yet they aren't."

      probably because we are chopping down forest like there's no tomorrow, you silly knob.

      this whole thing is stupid and her experiment is poorly controlled. she's done hardly anything to establish if the results are because of the EM.

      --
      If you mod me down, I will become more powerful than you can imagine....
    11. Re:A word on simple experiments... by shaitand · · Score: 1

      That isn't the only type of plant growth. There should be massive algae blooms eating up that C02.

    12. Re:A word on simple experiments... by Khyber · · Score: 1

      Algae blooms eat oxygen, which causes the dead euphotic zones in the ocean.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    13. Re:A word on simple experiments... by afabbro · · Score: 1

      We're the same scientists who didn't think lead paint or asbestos were a problem, and discovered germ theory only a short time ago.

      There's no reason to come on here and insult everyone by calling us scientists. Sheesh.

      --
      Advice: on VPS providers
    14. Re:A word on simple experiments... by MaskedSlacker · · Score: 2, Informative

      Algae relies on large quantities of other nutrients as well, not just CO2.

    15. Re:A word on simple experiments... by LongearedBat · · Score: 1

      Please mod parent up. I'm out of points.

      She might have a very valid point, despite not being a qualified scientist.

      Do we really *know* for a fact that made-made EM radiation has no effect on the bioshphere? Or is that just an assumption? Perhaps we should research that, just to be sure.

    16. Re:A word on simple experiments... by c0lo · · Score: 1
      The original paper - do read it before throwing the stone.

      However, for some RF effects on biological systems, consistent results have been documented in previous experiments: growth rates of plants [17] and fungi [18] can be increased or decreased by RF exposure. Exposure to RF signals can induce plants to produce more meristems [19], affect root cell structure [20, 21], and induce stress response in plant species, causing biochemical changes [22].

      With the citations pointing to:
      - Proceedings of the IEEE International Symposium on Electromagnetic Compatibility
      - Electromagnetic Biology and Medicine
      - Bioelectromagnetics
      - Plant Biosystems
      - Annals of Botany
      - Physiologia Plantarum

      Yes, I know, writing a scientific paper does involve citation tricks, but I just hate the position of "Yeah, tree-huggers are nuts, incompatible with science. Thus this paper have to be a lame joke of a science".

      Interesting:

      The earth’s natural RF environment has a complex periodicity that has been more or less the same within the lifespan of modern tree taxa. Before 1800, the major components of this environment were broadband radio noise from space (galactic noise), from lightning (atmospheric noise), and a smaller RF component from the sun [14]. Because of the periodic nature of the naturally occurring RF background, plants may have evolved to use those environmental signals, as well as visible light, to regulate periodic functions, and therefore they may be sensitive to anthropogenic RF input.

      --
      Questions raise, answers kill. Raise questions to stay alive.
    17. Re:A word on simple experiments... by Urkki · · Score: 1

      Algae blooms eat oxygen, which causes the dead euphotic zones in the ocean.

      And yet I believe there aren't too many of those... Is it just a delay, and we'll see large parts of the oceans dying in a few decades, or is there something else at play? Stay tuned, we may find out within our lifetimes! This is perhaps the first time in human history where we have both the population and the technology to cause rapid global changes, and enough accumulated knowledge to understand at least some of it while it's happening. Interesting times!

    18. Re:A word on simple experiments... by Xest · · Score: 1

      Interestingly, I find my cacti (grown in a UK heated greenhouse) respond by far the best by growing the most on rainy days, even if I've not watered inside the greenhouse itself meaning it's not simply because that's when they're getting water. Also, by far the best days are when you get thunder and lightning, you can see the growth difference by the end of the day on these what are otherwise often very slow growing plants.

      I'd love to know the reasons because if I could replicate them then it would rapidly increase growth, both helping me grow faster the ones I sell, and helping me grow faster the ones I grow for conservation schemes.

      But it's not simple, I have measured the humidity outside on rainy days and replicated the greenhouse, I have tried decrease light levels to those outside when growth is best and so on. I believe the reason is likely down to the composition of the air when it rains, as I understand it lightning increases the level of nitrogen oxides in the air and so I can only assume it's something to do with this sort of thing.

      So in other words I agree with what you're saying, there are a lot of other hard to measure effects that do have a clear effect on plant growth, and professional botanists and plant biology experts I've spoken to seem to be unsure what precisely causes this increased growth of cacti when the sky is grey, and the rain is falling- even if the plants are sheltered and the rain isn't falling on them. I think it's naive to believe we know everything about plants and plant growth, clearly there's a lot more that can effect it than we fully understand just yet.

    19. Re:A word on simple experiments... by Khyber · · Score: 1

      "And yet I believe there aren't too many of those... "

      Plenty of them occurring yearly, we just usually don't hear about it on the news. Any mass bloom is followed by mass death of the nearby ocean life, due to the sudden drop in oxygen levels.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    20. Re:A word on simple experiments... by Iffie · · Score: 2, Insightful

      If sun em whas anything as powerful as rf em then radio would not work would it?

    21. Re:A word on simple experiments... by sean.peters · · Score: 1

      Iron, for one thing, is notably deficient in seawater. One of the plans for scrubbing excess CO2 from the atmosphere was to seed the oceans with iron - the idea is that you'd then get an immense algae bloom, and the algae would then die and sink to the bottom, sequestering a lot of carbon. It hasn't been implemented because 1) it's expensive and no one knows whether it would really work, and 2) fear of unintended consequences.

    22. Re:A word on simple experiments... by Urkki · · Score: 1

      Lead paint is not an issue if you do not eat it.

      ...and avoid the lead getting enriched in the food chain so much it'll start causing problems at the top. And that is a matter of how much of it is released into the environment, as paints erode, are sandpapered, unused paint cans are thrown out with regular waste, etc, etc.

      Asbestos is a great insulator and fine to use as such if it is properly sealed.

      I don't think there are ways to properly seal asbestos. Bear in mind that sealing must be such, that no asbestos fibres are released even when material is worked on with any regular tools like saw, drill, sandpaper... Or you'll have to guarantee that no joe sixpack will do renovation work (including drilling holes for wall ornaments) on the building.

      Not to mention, you'll have to find a way to guarantee, that the building will eventually (perhaps after several generations) be demolished properly.

    23. Re:A word on simple experiments... by Urkki · · Score: 1

      "And yet I believe there aren't too many of those... "

      Plenty of them occurring yearly, we just usually don't hear about it on the news. Any mass bloom is followed by mass death of the nearby ocean life, due to the sudden drop in oxygen levels.

      Yeah, I know, but I'm under impression there aren't abnormally many of those. But I could be wrong, and there are big signs that we're headed towards the next global anoxic event... Which would be bad I guess, to put it mildly.

  13. Re:If it's not a definitive study... by thrawn_aj · · Score: 4, Interesting

    It's a nice enough preliminary study. I'm usually quite skeptical about "OMG teh ebul microwaves are killing us" studies but this one seems sensible enough and it doesn't go overboard in its claims like so many do. Good for the lady for doing things systematically enough to get published in a peer-reviewed journal (that's also serious).

  14. Won't matter to the anti-radio/radiation nuts by Sycraft-fu · · Score: 4, Insightful

    This shit has been going on forever. They keep changing their target, but it is always the same tune: Radiation is bad, X is radiation, so X is bad.

    When I was a kid the target was high voltage distribution lines. They said those were bad for kids, caused cancer. They had a data point, kinda, in terms of one community. Of course upon further study there was actual radioactive shit there (Radon IIRC). At any rate because of the serious nature of this, it was looked in to. Long term studies were done, looking at kids who grew up near these lines. I am probably a data point in one of those studies as our house was under some large lines when I was young (that's why I know about this shit, Mom was worried).

    Well, now there's many decades of results compiled and guess what? There's no difference at all. They don't do shit.

    Now any scientist could have told you that, the radiation is non-ionizing, hell the waves are millions of meters long from 60Hz power. The nuts weren't doing science, they were just being nuts.

    So this is more of the same shit, same as the "cellphones kill honeybees" and so on. They do not consider it logically, they are just reactionary.

    1. Re:Won't matter to the anti-radio/radiation nuts by ChefInnocent · · Score: 1

      Hey man, like the Sun is bad. There's like people everywhere getting skin cancer, and those doctor dudes will tell you it's the Sun's fault. So like, this all goes back to the radiation can kill ya, man.</nutcase>

    2. Re:Won't matter to the anti-radio/radiation nuts by Anonymous Coward · · Score: 0

      Can you tell me with certainty we understand the full relationship between the entire E-M field and every biological organism and molecule on this planet?

      I'm not saying this lady is correct, or that her science was sound, or that she accidently used better soil, but we have gaping holes in our knowledge regarding science and the relationships of inter-disciplinary fields.

      We're still ametuers on this planet. To think otherwise is dangerous, and fool-hardy.

    3. Re:Won't matter to the anti-radio/radiation nuts by Anonymous Coward · · Score: 0

      Check out electricalpollution.com. The issue is not high voltage per se, it's high frequency noise in the power lines.

      Nobody with a lick of scientific sense is afraid of 60 Hz EMF.

    4. Re:Won't matter to the anti-radio/radiation nuts by c0lo · · Score: 3, Interesting

      The nuts weren't doing science, they were just being nuts.

      So this is more of the same shit, same as the "cellphones kill honeybees" and so on. They do not consider it logically, they are just reactionary.

      I have some problems your "the same shit": to me is a valid "data point", worth investigating further. TFA:

      The paper was later accepted for presentation at the North American Forest Ecology Workshop at Utah State University in Logan last June. As a result of that presentation, her paper was accepted to be published in a special edition from the workshop of the peer-reviewed online International Journal of Forestry Research.

      Does the peer-reviewing automatically make the preliminary findings true? No. But it certainly does make the paper worth more to my eyes than the correlation between toxo infestation and World Cup results.

      --
      Questions raise, answers kill. Raise questions to stay alive.
    5. Re:Won't matter to the anti-radio/radiation nuts by dbIII · · Score: 1

      When I was a kid the target was high voltage distribution lines. They said those were bad for kids, caused cancer.

      They still are - the answer is not to get so close that you get an induced rise in body temperature. Since that's typically close enough that you'd be scared of it arcing to you that's rarely a problem. It's been observed in monkeys that lived in trees almost within reach of the wires and in pregnant women working on poorly sheilded machines that joined plastic sheets.
      Of course some people assume that if you can see the wires they are close enough to be detected above the background RF you get from the walls, but the real answer is you have to get very close to something with an intense field before it starts to warm you up by induction.
      Also cellphone can kill honeybees but a hammer can thump more honeybees before it breaks :)

    6. Re:Won't matter to the anti-radio/radiation nuts by repapetilto · · Score: 1

      fyi, "peer reviewed" doesn't neccesarily mean peer reviewed by someone who cared or knew what they were talking about.

    7. Re:Won't matter to the anti-radio/radiation nuts by c0lo · · Score: 1

      fyi, "peer reviewed" doesn't neccesarily mean peer reviewed by someone who cared or knew what they were talking about.

      I should understand that the paper is still irrelevant and "an emission of a nut that doesn't do science", in spite of being presented twice in conferences to an audience which (I assume) cares and published (after being peer-reviewed) in the International Journal of Forestry Research.

      --
      Questions raise, answers kill. Raise questions to stay alive.
    8. Re:Won't matter to the anti-radio/radiation nuts by DerekLyons · · Score: 1

      Now any scientist could have told you that, the radiation is non-ionizing, hell the waves are millions of meters long from 60Hz power. The nuts weren't doing science, they were just being nuts.

      Just because it's non-ionizing doesn't mean it's not harmful - ask the (millions of?) folks with skin cancers from UV, or someone who got burned by exposure to UV or blinded by a laser. There's probably nobody alive whose been exposed to high levels of microwaves, but examining the results next time you nuke some leftovers might prove instructive.

    9. Re:Won't matter to the anti-radio/radiation nuts by repapetilto · · Score: 3, Insightful

      Not necessarily. Its nothing personal regarding this work, I actually didn't even look at it yet. I'm just pointing out the limitations of peer review. That doctor from India who studies the guy who claims to have not eaten or drank anything for the last 70 years publishes in a peer reviewed journal and everyone I've talked to from India about him called him a quack.

      For example, as a scientist unfamiliar with this field, and thus not qualified to judge the particular details of the experiment I would instead focus on the general methods used and the apparent quality of the journal. This journal, found at http://www.hindawi.com/journals/ijfr/, has only been around for 2 years and unless there are some strange politics going on in the forestry field that likely means it does not attract top notch editors/peer-reviewers. It will also likely have a lower barrier to publication relative to other journals as it will not be receiving as many papers.

      They also may be more likely to publish something with a questionable premise (although this should have been more an issue for whoever funded the project) and bad controls, etc if it seems like it will hit upon some kind of hot button issue and thus get the journal exposure. Not to say that doesn't ever happen in the case of Nature or Science, but there will be less pressure to do so.

      Also its possible that this researcher simply wasnt allowed to publish elsewhere because people automatically rejected her premise as wacky, and so was forced to publish in a lesser known journal and rely on popular media exposure. Or as is more likely the case here, she simply had no credentials and so found it hard to get published.

      All I'm saying is that these are things that should pop into your head when you see "peer reviewed" not necessarily images of reliability. Still its a better system than most. Maybe reviewers should have to have their names attached to each article they accept somehow, so some kind of meta-peer-review could go on.

    10. Re:Won't matter to the anti-radio/radiation nuts by LongearedBat · · Score: 1

      And yet, I can't talk on a mobile phone for long, as I get a headache. Not so with a "normal" phone. And no, it is not psychosomatic. It's real. It might not be damaging to me, but could it be damaging to other life?

      Maybe it's nothing, may it's something. How do we know for sure?
      Research.

      She's just looking at it from another angle.

    11. Re:Won't matter to the anti-radio/radiation nuts by c0lo · · Score: 1

      Its nothing personal regarding this work, I actually didn't even look at it yet.

      Also its possible that this researcher simply wasnt allowed to publish elsewhere because people automatically rejected her premise as wacky

      Ok. Thanks. My sincere suggestion: RFTA (the author is not a researcher, she didn't intend to publish or to attend conferences - she was invited to. A nice and interesting story beyond the findings ... and the possible conclusions - which, until someone would experiment with due care, are disputable).

      What I said: by R-ingTFA, it does not appear to me as a "nut's job".
      The quotation from TFA was more to tease the /.-ers to read: apologies if I mislead you in thinking I don't know how the "peer-reviewing and academia" works.

      --
      Questions raise, answers kill. Raise questions to stay alive.
    12. Re:Won't matter to the anti-radio/radiation nuts by repapetilto · · Score: 1

      All is good.

    13. Re:Won't matter to the anti-radio/radiation nuts by c0lo · · Score: 1

      As a "Thank you" for the patience and the link on hindawi, here's another one in return: the original paper referenced by TFA. Up to you to judge if is credible or not (no matter how prestigious the journal is).

      --
      Questions raise, answers kill. Raise questions to stay alive.
    14. Re:Won't matter to the anti-radio/radiation nuts by aXis100 · · Score: 1

      Umm, UV radiation IS ionising.

    15. Re:Won't matter to the anti-radio/radiation nuts by Anonymous Coward · · Score: 0

      As far as I've understood it's not the 'evil radiation' from powerlines, but the fact that the ground/air beneath the lines are metal polluted caused by rain/fog on the unshielded metal cables. An abundance of metal is not good for one's health.

    16. Re:Won't matter to the anti-radio/radiation nuts by Manchot · · Score: 1

      I am extremely skeptical of the anti-radiation alarmists, but don't dismiss the possibility of non-ionizing radiation doing damage out of hand. After all, microwaves are also non-ionizing.

    17. Re:Won't matter to the anti-radio/radiation nuts by ElectricTurtle · · Score: 1

      And there are many people who don't get headaches from mobile phones (including me). That suggests it IS psychosomatic.

      Believe me, if you can prove that some people have real, physical, measurable adverse reactions to lower frequency EM radiation akin to allergies, you'll be richer and more famous than your average Nobel laureate. Too bad it's bullshit. Because it's your anecdotal experience, you want to tell yourself that you're too rational to exhibit a symptom that's not externally caused. The bad news is that everybody has a subconscious, and nobody can control or understand it, that's the nature of the subconscious. Yours is fucking with you. That's unfortunate, but it's not going to blow the lid off of any EM effects research.

      --
      I support the Slashcott and will not be reading or commenting from 2/10/14 to 2/17/14. Beta is steaming pile of dog shit
  15. Re:If it's not a definitive study... by Anonymous Coward · · Score: 5, Insightful

    For someone outside of academia to get reviewed and published is news enough.

  16. Double-blind by DragonWriter · · Score: 1

    it's hard to see how a double-blind study could even be designed in this area

    Well, half of the double-blind part is trivial: the seedlings aren't going to know whether they are in the experimental group or the control group.

    The other half isn't entirely impractical. Plant seeds in a number of sites with similar background RF levels, and mount visually-identical "transmitter devices" at each site. The people collecting growth data at the sites will not be informed which transmitter devices are actually transmitters adding significantly to the RF background, and which are not.

    (Alternatively, you could pick sites with different RF backgrounds, and use active transmitters of different power levels at all sites so that, in combination with the background, you have groups of "baseline" and "high" background sites for the same effect.)
     

  17. Re:If it's not a definitive study... by Anonymous Coward · · Score: 0

    You're right. I published a study that writing free software turns you gay (based on the cases of Linus Torvalds and Richard Stallman). Can my results make the front page of Slashdot too?

  18. Experimental Bias? by Anonymous Coward · · Score: 0

    When my geraniums appeared stunted, I bought some fertilizer and it worked wonders. The thought of putting them under a Faraday shield never occured to me. Did she live beneath a high voltage transmission line? You don't suppose that she had a preconceived notion that RF radiation is bad?

    My mother grows her geraniums in a wooden pyramid, and they are spectacular!

  19. Re:If it's not a definitive study... by Anonymous Coward · · Score: 2, Funny

    I dunno if your results will, but your lynching might.

  20. Double blind not needed by Mt._Honkey · · Score: 1

    Double blind studies exist to control for the placebo effect. Unless trees are aware that they are being experimented on, this is not an issue (they're already "blind"). This is more like a physics experiment than a medical one: you need to control all the variables and only change one at a time, and use objective measures to determine the effect. Leaf area and shoot length sound like excellent measures in this regard. If there is an opportunity for experimenter bias to creep into any measurement (for example if they are recording something a bit more subjective like bark quality or growth symmetry), then having the person measuring the result be "blind" may be appropriate.

    --

    Don't Bogart the fish sticks
    1. Re:Double blind not needed by n3umh · · Score: 1

      If there is an opportunity for experimenter bias to creep into any measurement (for example if they are recording something a bit more subjective like bark quality or growth symmetry), then having the person measuring the result be "blind" may be appropriate.

      There are a lot of people today that believe that experimenters must PROVE that they are un-biased in a way other than presenting their methods and results.

      I think some people in this thread would prefer blind physics experiments :-)

    2. Re:Double blind not needed by CheshireCatCO · · Score: 1

      Double-blind studies don't weed out the placebo effect. If a patient reports feeling less pain, that's that. (Until someone figures out how to quantify pain in an objective manner, anyway.)

      Double-blind techniques remove the researcher's bias from the results. As a researcher assessing the outcomes, it's easy to read your biases into your measurements when the measurements are any but the most objective. (eg, I can be reasonably sure I'm not introducing a lot of bias when I read a temperature probe, but I can't be if I look at a patient's overall health on a new vitamin.)

      Either way, you're right: double blinds aren't needed. The blind on the researcher is, though, since she was assessing the health of the trees.

  21. Maybe it was a response. by JDeane · · Score: 0, Redundant

    The plants that had bigger leaves may have been a response to the experiment.

    I hear plants grow bigger leaves when they grow in shaded area's so maybe that was the difference.

    Something about needing sunlight and competing with other tree's to get at the sunlight all that jazz.

    1. Re:Maybe it was a response. by n3umh · · Score: 2, Insightful

      Light was controlled for within 5% of that received by the un-shielded plants. There were three groups, and it was simple... fiberglass screen shaded the "mock shielded" group from the sun the same way the aluminum screen did.

      I personally think further experiments will discover some other cause besides RF, but Haggerty controlled for and measured a lot of other things... light, air circulation, etc. That doesn't mean her results will turn out to be correct, but she did present everything anyone would need to do to repeat her experiments to verify or refute them.

  22. Light is a form of electromagnetic radiation by Anonymous Coward · · Score: 0

    Slashdot wrote: "aspens shielded from electromagnetic radiation were healthier than those that were not"

    Light (the energy source for photosynthesis) is a form of electromagnetic radiation. Show me a group of aspens shielded completely from it for a long time, and I'll show you a group of dead aspens!

    On another note, how do we know that her Faraday cage didn't keep out insects and other leaf-munchers, along with radio waves? She might be attributing the supposedly better health of the aspens in the Faraday cage to the wrong cause.

  23. Meh, metal cage is likely retaining heat/etc by Anonymous Coward · · Score: 0

    Without logs of temp/humidity/etc inside and outside of the control cage and test cage (and without EMF readings inside and outside), the most likely reason for the enhanced growth is a that the metal cage creates a more favorable growing environment.
    Kinda' like espalier with a stone/masonry fence.

  24. double-blind method by ridgecritter · · Score: 2, Insightful

    You might be able to double-blind the Faraday cage if the screen material consisted of (for the active cage) wire overcoated with plastic and (for the inactive cage) fiberglass threads overcoated with the same type of plastic, the intent being to provide two cage materials that look and feel alike (bump into them and they both have the same stiffness) but only one of which provides the RF shielding function.

  25. plants grew better in a greenhouse? by Anonymous Coward · · Score: 0

    It sounds like she put some grounded wire around one set, and built a nice warm fibreglass greenhouse around another set. Surprise! Plants grew better in greenhouse, therefore radiation is bad. I think specious is the term.

  26. Double blind by drmofe · · Score: 1

    Presumably, the double blind experiment is to avoid some sort of Hawthorn Effect?

    1. Re:Double blind by Anonymous Coward · · Score: 0

      The Hawthorn Effect is not what you think it to be.

    2. Re:Double blind by junglebeast · · Score: 2, Informative

      A double blind study is to prevent placebo effect as well as experimenter bias. I guess they are worried that the trees might feel compelled to grow more if they were told that there are no radio waves...

    3. Re:Double blind by n3umh · · Score: 1

      A double blind study is to prevent placebo effect as well as experimenter bias.

      There's yet another reason to do a double blind that has little to do with the results.

      If you're a physician administering a placebo to a patient in a drug trial and they die or worsen significantly, it's important that you never know. This is especially true if it turns out that the drug is very effective. The effects of researcher and subject bias when both the experimenter and the subject can communicate nonverbally and instinctively are also an extremely important reason to do double-blind tests in some circumstances.

      None of these things apply to subjecting trees to objectively measurable stuff and reporting your methods and results in a reasonably objective way. A certain interest in a question and expectation of the outcome leads one to do experiments in the first place, but that doesn't mean that every test must be carefully tuned to eliminate *any possibility* of researcher bias.

      In situations where people are doing controlled, *easily reproducible* experiments and present results based largely on objective measures (in this case, things like biomass, leaf size, fraction of diseased leaf, etc), it's a waste of resources to do blind tests.

      Researcher DISHONESTY can still be a problem, but that will ALWAYS be a problem, blind tests or no. People fake data, sabotage results... whatever. That's why independent confirmations are important wherever possible. Working in large groups with blind tests helps reduce this possibility when many independent confirmations are impossible (since it's hard to hold together an actual conspiracy).

      But for a single scientist working with reasonably objective methods, it's not worth it. To do a blind test **by yourself** you would have to set up a really convoluted system to hide the methodology from YOURSELF. This is unnecessary if you're doing science right. Some people are prone to confirmation bias. They are bad scientists. They're barely scientists.

      Haggerty's paper suggests she's a scientist.

      I don't like this result. I don't like it at all. But unless the data were falsified, there's no problem with the method. There are other things that need to be controlled for. It might be something chemically relevant about the aluminum screen. I've found some papers that suggest that the color of a screen can repel certain insects that can pass through the holes anyway... so there could be a difference between fiberglass and aluminum in keeping insects out.

      But my concern over the public relations potency of these results and the hypotheses I have about "other factors" are not science. Testing my hypotheses as objectively as I could and presenting the results would be science.

  27. Inescapable proof that the iPhone 4 causes cancer! by Gavin+Scott · · Score: 1

    Not from the emitted RF, that doesn't have enough energy to break chemical bonds or really have much of any effect on a cell, but standing in line for seven hours unprotected in the sun waiting to pick one up on the day or release will almost certainly increase your risk of skin cancer.

    G.

  28. effects of magnetism on everything 'discovered' by Anonymous Coward · · Score: 0

    again.

    the corepirate nazi illuminati is always hunting that patch of red on almost everyones' neck. if they cannot find yours (greed, fear ego etc...) then you can go starve. that's their (slippery/slimy)'platform' now.

    never a better time to consult with/trust in our creators. the lights are coming up rapidly all over now. see you there?

    greed, fear & ego (in any order) are unprecedented evile's primary weapons. those, along with deception & coercion, helps most of us remain (unwittingly?) dependent on its' life0cidal hired goons' agenda. most of our dwindling resources are being squandered on the 'wars', & continuation of the billionerrors stock markup FraUD/pyramid schemes. nobody ever mentions the real long term costs of those debacles in both life & any notion of prosperity for us, or our children. not to mention the abuse of the consciences of those of us who still have one, & the terminal damage to our atmosphere (see also: manufactured 'weather', hot etc...). see you on the other side of it? the lights are coming up all over now. the fairytail is winding down now. let your conscience be your guide. you can be more helpful than you might have imagined. we now have some choices. meanwhile; don't forget to get a little more oxygen on your brain, & look up in the sky from time to time, starting early in the day. there's lots going on up there.

    "The current rate of extinction is around 10 to 100 times the usual background level, and has been elevated above the background level since the Pleistocene. The current extinction rate is more rapid than in any other extinction event in earth history, and 50% of species could be extinct by the end of this century. While the role of humans is unclear in the longer-term extinction pattern, it is clear that factors such as deforestation, habitat destruction, hunting, the introduction of non-native species, pollution and climate change have reduced biodiversity profoundly.' (wiki)

    "I think the bottom line is, what kind of a world do you want to leave for your children," Andrew Smith, a professor in the Arizona State University School of Life Sciences, said in a telephone interview. "How impoverished we would be if we lost 25 percent of the world's mammals," said Smith, one of more than 100 co-authors of the report. "Within our lifetime hundreds of species could be lost as a result of our own actions, a frightening sign of what is happening to the ecosystems where they live," added Julia Marton-Lefevre, IUCN director general. "We must now set clear targets for the future to reverse this trend to ensure that our enduring legacy is not to wipe out many of our closest relatives."--

    "The wealth of the universe is for me. Every thing is explicable and practical for me .... I am defeated all the time; yet to victory I am born." --emerson

    no need to confuse 'religion' with being a spiritual being. our soul purpose here is to care for one another. failing that, we're simply passing through (excess baggage) being distracted/consumed by the guaranteed to fail illusionary trappings of man'kind'. & recently (about 10,000 years ago) it was determined that hoarding & excess by a few, resulted in negative consequences for all.

    consult with/trust in your creators. providing more than enough of everything for everyone (without any distracting/spiritdead personal gain motives), whilst badtolling unprecedented evile, using an unlimited supply of newclear power, since/until forever. see you there?

    "If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land." )one does not need to agree whois in charge to grasp the notion that there may be some assistance available to us(

    boeing, boeing, gone.

  29. That explains it by uremog · · Score: 1

    I was wondering why the plants I keep in my microwave never grow :( I thought the extra light would help out.

  30. Shielding ... by PPH · · Score: 0, Redundant

    ...probably keeps deer from snacking on them.

    --
    Have gnu, will travel.
  31. The Effects by DynaSoar · · Score: 5, Funny

    Once it's shown that radio waves are detrimental to aspen seedlings, there will be:

    1. Signs posted around transmitter towers saying "WARNING -- Radio waves can be detrimental to your leaf area development". In both English as Aspenic.

    B. Pictograph version of the same for Aspens that read yet.

    Three. Non-animal subjects committees at arboreal research centers defining then testing for proper and ethical treatment of seedlings, such informed consent.

    IV. Radical vegans, rejected Greenpeace applicants and overly sensitive hippie hangers-on 'rescuing' seedlings from Torture Hothouses because they're being tested 24 hours a day and not allowed to sleep.

    Cinco. Smarmy, crooning, sexy but aloof modern folk singers moaning out a somewhat relevant lyric while you see pictures of abused seedlings, then their eyes tearing up as they beg you "Won't you please help? Think of the seedlings."

    === 100 years pass ===

    99. Members of the Poplar* Peoples' Front forming a picket line around the Deciduous Students Union, carrying signs made of rock (no living material was harmed in the making of these signs) in their branches, demanding representation of their own kind among elected officials (Vote Yeast, Not Beast) and protesting the deplorable treatment of some of the more 'culturally mature due to greater experience evolving' and 'third forest' species (Smile Mold Is People Too) while Jefferson Floodplain sings "Up against the wall... Up against the wall, Carbonizers" from their hit album 'Nothing Can Stop The Shape of Leaves To Come and then giggle when you start to turn blue and gasp because you have cyclic respiration and can't read sentences this long without stopping for air whereas their constant bidirectional respiration means they can talk for hours straight without stopping once.

    * Not misspelled, you meat chauvinist pig.

    --
    "I may be synthetic, but I'm not stupid." -- Bishop 341-B
    1. Re:The Effects by Anonymous Coward · · Score: 0

      Out of mod points, but that was a good laugh. =D

  32. Comment removed by account_deleted · · Score: 1

    Comment removed based on user account deletion

  33. MSDS by copponex · · Score: 2, Informative

    https://fscimage.fishersci.com/msds/96252.htm

    Danger! Corrosive. Harmful if inhaled. May be absorbed through intact skin. Causes eye and skin irritation and possible burns. May cause severe respiratory tract irritation with possible burns. May cause severe digestive tract irritation with possible burns. May cause liver and kidney damage. May cause central nervous system effects. This substance has caused adverse reproductive and fetal effects in animals. Inhalation of fumes may cause metal-fume fever. Possible sensitizer.

    Target Organs: Blood, kidneys, central nervous system, liver, brain.

    Just ignore that. Go play with some, preferably in the room where you sleep.

    1. Re:MSDS by multiplexo · · Score: 1, Insightful

      U R so smart. U can read an MSDS. Hey, why don't you play with some mercury, in the room where you masturbate to pr0n. Seriously, metallic mercury isn't that dangerous, the nasty shit is the organometallic mercury compounds such as the dimethylmercury that killed Karen Wetterhahn. Yeah, metallic mercury is soooooo dangerous, which is why they used it for thermometers for hundreds of years and why you can still find mercury sphygmomanometers in doctor's offices and why millions of people die every year from exposure to the metallic mercury in their bi-metallic thermostats.

      --
      cheap labor conservatives - they want to keep you hungry enough to be thankful for minimum wage.
    2. Re:MSDS by copponex · · Score: 1

      I don't know, maybe you just have a different definition for safe chemicals. I consider safe something that I don't need gloves to touch, or a Hazmat team to clean up if there's an accident. I guess those dumbasses at MIT are trying to get rid of all of the devices that contain mercury - including sphygmomanometers - because they just like to waste time and money.

      It's cool, though. I know how you really feel about anyone who doesn't cuddle with toxic metals.

      Let's help the environment by killing all of the environmentalists. How much carbon is generated by bloviating environmentalists spewing FUD by publishing badly flawed studies such as this one? It has to be in the megatons. By reducing the carbon footprints of all environmentalists to zero we could reduce energy consumption, carbon-dioxide production and we'd have fewer annoying fucks to deal with.

      by multiplexo on Monday January 12 2009, @12:22AM (#26413305)

    3. Re:MSDS by Anonymous Coward · · Score: 0

      The main danger is that HARMFUL IF INHALED. Which relies on the vapor pressure of Hg at the current conditions. Which at STP, is fairly low. So the total dose absorbed playing with mercury a few times at STP is fairly low. Playing with high temperature mercury continuously, on the other hand...

  34. ding ding ding by SuperBanana · · Score: 1

    Personally, I think the shielding worked more as a cozy for the plant and gave it a more stable immediate environment upon which to grow. Perhaps even the faraday cage was diminishing the light around the geraniums, so they spent more energy growing their leaves bigger to compensate.

    Yep. Or the area was simply too bright, and the plants shielded has more favorable conditions. Sunlight, humidity, temperature, and airflow were probably all affected by whatever was used to shield the plants. And all of which have an effect on plant growth.

    Whoeever came up with this "study" is a moron.

    1. Re:ding ding ding by Daniel+Dvorkin · · Score: 2, Informative

      Whoeever came up with this "study" is a moron.

      Whoever calls a researcher a moron without bothering to read a short, easily accessible article about the research ... is a moron.

      In this case, that would be you.

      --
      The correlation between ignorance of statistics and using "correlation is not causation" as an argument is close to 1.
  35. an open cage versus a fiberglass cover?! by SuperBanana · · Score: 1

    one group in a shielded Faraday cage, another group in a cage wrapped in fiberglass that did not block radio waves and a third set was unprotected altogether.

    So, she placed one group in a cage which only blocks a little bit of light via shade from the wire, versus another group that added a material which blocks some wavelengths, shields the plant from rain, and prevents air movement?

    Big fucking surprise the "unshielded" plant didn't do as well. She wasn't testing for whether radio waves affect plant growth. She was testing whether a fiberglass shelter affects plant growth.

    what's the likelihood that someone designing the experiment would have thought of the same problems you thought of in 30 seconds since reading the summary

    Apparently, quite poor. You're also assuming she didn't intentionally design the test to give the results.

    1. Re:an open cage versus a fiberglass cover?! by phantomfive · · Score: 1

      Apparently, quite poor. You're also assuming she didn't intentionally design the test to give the results.

      Dude, I'm also assuming she didn't make the whole thing up from inside her basement. I'm also assuming you are someone real, although somewhat unintelligent. Sure, it is possible that both the group with fiberglass was affected, and that also the group without any covering at all was affected, but that's why the results are only 'interesting' and not 'wow this is amazing.' Follow up studies are obviously needed to figure anything out, as mentioned in the article.

      --
      Qxe4
    2. Re:an open cage versus a fiberglass cover?! by aXis100 · · Score: 1

      I think you'll find the "fibreglass" was actually fibreglass mesh like used in fly-wire. This has basically the same appearance and environmental properties as the wire mesh.

  36. Where's Waldo? by Anonymous Coward · · Score: 0

    I think we are going to need the best consulting engineer we can find on this case.

  37. And by mahadiga · · Score: 1

    All cell phones emit some amount of electromagnetic radiation. Given the close proximity of the phone to the head, it is possible for the radiation to cause some sort of harm to the 118 million cell-phone users in the United States. What is being debated in the scientific and political arenas is just how much radiation is considered unsafe, and if there are any potential long-term effects of cell-phone radiation exposure.

    There are two types of electromagnetic radiation:

            Ionizing radiation - This type of radiation contains enough electromagnetic energy to strip atoms and molecules from the tissue and alter chemical reactions in the body. Gamma rays and X-rays are two forms of ionizing radiation. We know they cause damage, which is why we wear a lead vest when X-rays are taken of our bodies.

            Non-ionizing radiation - Non-ionizing radiation is typically safe. It causes some heating effect, but usually not enough to cause any type of long-term damage to tissue. Radio-frequency energy, visible light and microwave radiation are considered non-ionizing.

    http://electronics.howstuffworks.com/cell-phone-radiation.htm/printable

    --
    I'd like to buy homeland for our 10 million people. http://twitter.com/mahadiga
  38. my violet ray kills every plant it touches by vaporland · · Score: 1

    My violet ray has killed every plant its radiation ever came into contact with. I bought it at a yard sale in Greenwich Village about 18 years ago. It also removes gold leaf from antique picture frames. It's really cool and can also be used to cause premature component failure in electronic equipment. It scares the shit out of the developers where I work....

    --
    Ask Me About... The 80's!
  39. I've tried to grow plants... by Anonymous Coward · · Score: 0

    I've tried to grow plants totally isolated from electromagnetic radiation (all wavelengths). Damn! They wouldn't grow at all! The soil pH was correct, I watered the seeds regularly (but not overwatered, nor underwatered). It was in a cave (none of that electromagnetic radiation at all, except the occasional bit emitted from my flashlight when I went down ...I wanted to see where I was going... Nothing. No growth at all. The temperature was merely ambient. Mushrooms would grow, but the plants I wanted to grow... NO! I makes me wonder if the lady who published this article understands that light (from the sun, from the lights in the room where I'm typing this, from my computer monitors...) is *IS* electromagnetic radiation. Do you think she knows, or was grade 12 physics a course which she did not attend? I can understand ionizing radiation can be bad, I can understand that high power radar can cook flying birds like a million watt microwave oven (and really they aren't that different), but lower frequency EM radiation? My guess is these trees need light to do photosynthesis, and light is electromagnetic radiation. Something seems wonky here.

    1. Re:I've tried to grow plants... by Fantastic+Lad · · Score: 1

      I makes me wonder if the lady who published this article understands that light (from the sun, from the lights in the room where I'm typing this, from my computer monitors...) is *IS* electromagnetic radiation. Do you think she knows, or was grade 12 physics a course which she did not attend?

      Anybody capable of making a functioning Faraday cage is probably not an ignoramus. Basically, the light from the sun is not modulated into coherent, low power (non-ionizing) signals in the low Hz range where cellular activities have been repeatedly observed to show effects. But you'd have to read a book or two beyond grade 12 physics to know that.

      The maturity level around here is astonishing. People love their cell phones and their normal, comfortable patterns so much that they are emotionally incapable of allowing the possibility that anything *bad* might be associated with their established behaviors.

      It's fucking pathetic.

      -FL

    2. Re:I've tried to grow plants... by Khyber · · Score: 1

      "I've tried to grow plants totally isolated from electromagnetic radiation (all wavelengths). Damn! They wouldn't grow at all!"

      Well, for one, you're not doing it right. I can get animal fodder grown in 8 days with no light at all, in a totally dark shed.

      Why, yes, some of us do work on this exact problem of growing in the absence of light. Turns out some crops can be grown without light at all, depending upon how far you need to go with them.

      And that goes a LONG way to power savings.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
  40. Got to protect seedlings from E-M radiation ... by RockDoctor · · Score: 4, Funny

    ... particularly that with wavelengths between around 350 and 700nm.

    • Practically every person who has ever died of cancer has been exposed to electro-magnetic radiation between 350 and 700nm.
    • Sexually Transmitted Infections are more frequently reported in people who have been exposed to electro-magnetic radiation between 350 and 700nm.
    • Many drowning victims have been exposed to electro-magnetic radiation between 350 and 700nm in addition to their obvious exposure to DHMO.
    • Drug dealers and terrorists frequently use electro-magnetic radiation between 350 and 700nm in performance of their terrorist acts (including growing "peppers" for their pizzas).

    I think that the journal publishing and the amateur scientist published should attempt to grow their seedlings in complete absence of electro-magnetic radiation between 350 and 700nm. That'll teach them something that every troglobite population on the planet learned millennia ago.

    --
    Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
    1. Re:Got to protect seedlings from E-M radiation ... by Anonymous Coward · · Score: 0

      Woah. Ingesting Hydrogen Hydroxide has the same effects. Coincidence?

    2. Re:Got to protect seedlings from E-M radiation ... by w0mprat · · Score: 1

      So if I wrap myself in tin foil, I have an exciting weekend ahead with no consequences?

      --
      After logging in slashdot still does not take you back to the page you were on. It's been that way for 20 years.
    3. Re:Got to protect seedlings from E-M radiation ... by francisco.colaco · · Score: 1

      Thus nobody wsing a burka will die of cancer, get infected with STD or drown, since they are almost completely shielded from EM radiation at those levels.

      They will also refrain from perpretating drug dealing and terroris... oops|

      Francisco Colaço

    4. Re:Got to protect seedlings from E-M radiation ... by esjax · · Score: 1

      ... particularly that with wavelengths between around 350 and 700nm.

      • Practically every person who has ever died of cancer has been exposed to electro-magnetic radiation between 350 and 700nm.
      • Sexually Transmitted Infections are more frequently reported in people who have been exposed to electro-magnetic radiation between 350 and 700nm.
      • Many drowning victims have been exposed to electro-magnetic radiation between 350 and 700nm in addition to their obvious exposure to DHMO.
      • Drug dealers and terrorists frequently use electro-magnetic radiation between 350 and 700nm in performance of their terrorist acts (including growing "peppers" for their pizzas).

      I think that the journal publishing and the amateur scientist published should attempt to grow their seedlings in complete absence of electro-magnetic radiation between 350 and 700nm. That'll teach them something that every troglobite population on the planet learned millennia ago.

      10 years ago, walking near Bordeaux in France, we passed a prairie-like field full of mature sunflowers, ready for harvesting. Running through and above the centre of this field were the giant pylons and power-lines from the nuclear reactor about 10 miles away on the Gironde estuary. Under the 'shadow' of the the power lines, and stretching at least 500 metres(as far as we could see in the landscape)there was a basin like dip in the height and size of the plants. In the middle of this depression the plants were at best half the size of those outside the 'shadow', and the height increased evenly the further away from the centre of the dip. It appeared to us that the basin shaped 'valley' in the sunflower pattern was a direct result of the proximity of the power lines.

    5. Re:Got to protect seedlings from E-M radiation ... by RockDoctor · · Score: 1

      ... wrap tightly, really tightly. It is important to wrap the tin foil tightly enough to prevent dehydrogenated DHMO from penetrating the foil package to the protected person. This procedure will protect you from drowning, exposure to E-M radiation and STIs, while simultaneously preventing the police speed radar from reading your thoughts about the ... fuel oil and fertilizer ...

      TERRORIST! BURN THE TERRORIST for trying to evade the Thought Police!

      --
      Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
    6. Re:Got to protect seedlings from E-M radiation ... by RockDoctor · · Score: 1

      10 years ago, walking near Bordeaux in France, we passed a prairie-like field full of mature sunflowers, ready for harvesting. Running through and above the centre of this field were the giant pylons and power-lines from the nuclear reactor about 10 miles away on the Gironde estuary. Under the 'shadow' of the the power lines, and stretching at least 500 metres(as far as we could see in the landscape)there was a basin like dip in the height and size of the plants. In the middle of this depression the plants were at best half the size of those outside the 'shadow', and the height increased evenly the further away from the centre of the dip. It appeared to us that the basin shaped 'valley' in the sunflower pattern was a direct result of the proximity of the power lines.

      An interesting anecdote. Along with the originally cited report, that makes two anecdotes. And what is that famous aphorism about the plural of "anecdote", apocryphally attributed to Carl Sagan?

      OK, that sounds a little dismissive. Here's some background, so you don't think I'm dismissing your anecdote out of hand (or the original report).

      To be useful, your anecdote needs more detail (as does the original report) : firstly, the dimensions of the "dip" are quite unclear - at first glance it sounds like a dip that is a kilometre wide (500m on either side of the power line) stretching to the horizon. Which sounds quite gigantic, until you realise that it's a dip within a single field, and fields are not normally anything like that sort of size in the bits of France that I've seen. So, maybe your dip is X wide stretching as far as you could see into the field, some 500m?

      Was the power line energised? You state that it was near a nuclear power plant (not that the power source is alleged to matter), but was the plant operational or down for maintenance - I know nothing about the power grid in that area of France.

      How was the line of pylons constructed? possible by running a significant number of large loads of concrete, metal etc along a dirt road that you can't see under the sunflowers? You've dug a number of test pits to characterise the soil across the phenomenon you describe.

      There are a lot of possible complicating effects in this sort of investigation. A significant chunk of modern theory and practice in the statistics of experimental design and analysis was invented to study very similar types of effect at the Rothampstead Research Centre around a century ago. (I had a statistics lecturer who had a hard-on for the topic. Which is a quite scary thought.) You'd need to control for vegetation type, and for soil types, as well as drainage and climatic effects across your field of interest and your electrical influences.
      I'd approach the problem by producing modest-size (say, 0.5x1.0x1.0 m half-cube) soil containers, each containing one of two or three soil types (maybe mined from the field itself?) ; into different containers, I'd place several different crop types (say : sunflower, grass, wheat, clover ; four should be sufficient). I'd place my containers semi-randomly (using a Latin Square arrangement, for a first cut at a design) so as to incorporate a range of spacings from the pylons.
      I'd also try to arrange negotiations with the electricity distribution people and get the pylons arranged into a loop, so that my field of investigation incorporated areas with no detectable variation in electric field, an area with a gradient to a current of "I", and an area with a gradient to a current of "2I" (you could do this with a pylon loop).
      And to investigate thoroughly, I'd want to look at the effects of voltage and duration of current, as well as at presence/ absence of current.
      Oh, and of course, you'd need to replicate the experiment over several growing seasons, moving the containers around in the field to sampl

      --
      Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
  41. Poor control by Solandri · · Score: 1

    Read the paper. Haggerty had two cages, one of which was RF-transparent fiberglass which was close to the same air and light blockage as the aluminum faraday cage.

    That assumes the only influence of the cages is in blocking EM radiation. I can already tell you that's not the case. Metal in moist soil can create a voltage gradient and current, which has long been known to affect plant growth.

    A better control would be a metal cage, and an identical fiberglass cage with an equivalent amount/type of metal in contact with the ground.

    1. Re:Poor control by chocapix · · Score: 2, Informative

      Or, shield all plants with a metal cage (one cage per plant), put an antenna in every cage and choose randomly which antennas you turn on. That way, not only you're pretty sure you control everything but you can easily vary the amount and kind of EM radiation you submit the plants to.

    2. Re:Poor control by n3umh · · Score: 1

      A better control would be a metal cage, and an identical fiberglass cage with an equivalent amount/type of metal in contact with the ground.

      That is a testable hypothesis, and easy to implement.

  42. Over-simplie assumptions. by Fantastic+Lad · · Score: 1, Funny

    Why do people assume that the only way cellular activity can be affected by EM radiation is through heat damage due to ionization?

    That's almost exactly like saying arsenic in small quantities is safe because it takes more than ten pounds of any substance dropped from over ten feet to cause damage to one's internal organs.

    Biological chemistry and electricity are enormously complex, and yet people routinely try to establish in black & white what safe and unsafe are based on the most cartoonish levels of understanding. (And those cartoonish concepts, it MUST be noted, were initially injected into the media from the P.R. wings of the U.S. military and the Telecos in attempting to avoid being prosecuted. But people now accept such common 'wisdom' as though it were some sort of cosmic law of reality when in fact its origin was a clever public relations tactic.)

    There are several known mechanics through which low power (non-ionizing) radiation can affect living cells. I've outlined a few of them in the past, and every time I do, the emotional explosions it sets off in readers is astonishing, but whatever. Here we go again. . .

    Remember the phenomenon of "sympathetic resonance" from science class? That's the one where when you strike a string on a guitar on one side of the room, the identically tuned guitar on the other side of the room will start to vibrate. This is how radios work.

    Every object on the planet has a natural frequency at which it vibrates.

    Okay. Now take 60 Hz wall socket power. The Lithium ion happens to resonate at 60 Hz. Combine that with the Earth's static magnetic field, and you get an interesting effect where Lithium ions energize and move on a vector. Sub-ionizing power levels of EM can cause Lithium ions in your blood stream to penetrate the blood/brain barrier and deliver a narcotic psycho-active effect with greater frequency than if they were not being energized from an outside EM broadcast frequency. This effect is called, "Cyclotronic Resonance" and it is just one of several mechanics known.

    There are entire lists of frequencies and the various effects they have on cellular activity. These different frequencies can be used to modify moods and behavior sets in humans, and the cell phone system is an ideal method of delivery because the high-frequency carrier signals can be modulated down to mimic whatever frequency is desired.

    In a rather elegant double-stroke of genius, the billion or so lithium cell-phone batteries which have made their way to landfills, and there leach into ground water, supply the biosphere with plenty of distributed lithium.

    And yes, just to be clear, we're talking about global population mind-control.

    -Another cartoon concept people have been effectively sold, (though I find it astonishing that people so easily fall for such a patently false premise), is that, "Conspiracies do not exist."

    Like I said. Emotions run high on this subject. I wonder what causes that. . ?

    -FL

  43. What did she shield them with? by Dr_Barnowl · · Score: 3, Interesting

    No, I'm serious. My suspicion is that she shielded the successful plants with something that contains trace nutrients that are lacking in her local soil.

    For example, if her shielding was composed of steel chicken wire, then rainwater will pick up iron and zinc from the wire before it falls on the ground, both of these are essential trace nutrients for plant growth. In particular the rich red colour of the leaves in the experimental group speaks of a good supply of iron.

    Alas, I've not seen the paper. If she's doing it properly her control plants should be growing through a layer of what she's using for shielding, instead of inside it. I suspect this is not the case.

    1. Re:What did she shield them with? by dugeen · · Score: 2, Interesting

      My thoughts exactly, there is a classic example of this involving a farmer who, believing his fruit trees were being affected by radio waves, surrounded them with wire mesh containing zinc.

    2. Re:What did she shield them with? by Anonymous Coward · · Score: 0

      Alas, I've not seen the paper.

      Find the paper at http://www.hindawi.com/journals/ijfr/2010/836278.html

    3. Re:What did she shield them with? by Ted+Stoner · · Score: 1

      I hadn't thought of that angle. Maybe also the cage surrounding the plants results in an increased ambient temperature affecting the growth. Wind currents changed. So there's three variables to control and check: metallic substances, temperature, and airflow (with airborne entities).

    4. Re:What did she shield them with? by Anonymous Coward · · Score: 0

      Here you go

      The cage was made of aluminum.

  44. The Sun. by w0mprat · · Score: 3, Interesting

    The Sun is among the other sources of radio waves streaming down to the surface of the earth. I would suggest that man made radio waves are not automatically the cause. Although we broadcast strongly on particular frequencies in most areas background radiation drowns out total human output but across a wider spectrum. Plants may be sensitive to changes in background radio sources, for example we're in a period of unusual solar activity. http://science.nasa.gov/science-news/science-at-nasa/2008/11jul_solarcycleupdate/

    --
    After logging in slashdot still does not take you back to the page you were on. It's been that way for 20 years.
  45. Did anyone actually read the paper? by Anonymous Coward · · Score: 0

    Go and read the paper: http://www.hindawi.com/journals/ijfr/2010/836278.html

    Some observations about it:
    - given no academic background, it is written quite well
    - it contains no pictures of the actual shielding used
    - She's focusing on "the low-level background of RF pollution" - so placing an antenna right next to the plants (as some suggested) isn't the right condition for her hypothesis
    - "Shielding reduced light intensity by 35% for the mock-shielded enclosure and 40% for the RF shielded enclosure"
    - The actual statistics are pretty thin IMHO

    It seems a simple (and cheap) enough experiment to repeat it more rigorously with a few more controls and double blind (as said before) to make sure the conclusions hold (or break apart).

  46. Ask her to work on global warming. by Anonymous Coward · · Score: 0

    I guess she'll need to put a Faraday cage around her Apple II before she runs simulations proving anthropogenic global warming, but it seems she's already familiar with scientific standards in this area. She just needs a few million dollars in government funding to run her impartial research.

  47. Mythbusters anyone? by Anonymous Coward · · Score: 0

    Didn't they do an episode where they played different types of music directly at plants and noted no *visual* effects? I don't remember how long they did it, however.

  48. Welcome to weird science !!!!! by Dilaudid · · Score: 2, Funny

    Great a 3 kdawson-story day. What next? Ouija boards cause cancer in mice? Perhaps we could have an article on the risks posed by heavy electricity, or homeopathic remedies for Autism (One lady in wisconsin swears that her little jimmy is much better after his injections). Perhaps we should change the slogan for Slashdot from "News for Nerds" to "Alternative Health monthly", or "News for Arts Graduates who like Apple Products", or "Anti-Globalisation Discussion Group". As someone with a science degree and a basic grasp of statistics, general science and economics I'd rather eat my own excreta, thanks. Faraday cage. Pathetic.

  49. What if radiation fools plants? by jlehtira · · Score: 1

    Anti-radiation nuts will always be spewing out shit, but reading the article, I feel this specific piece has nothing to do with nuts. It seems to talk about one single experiment and doesn't seem to extrapolate any further than that.

    Actually, I think I have a very nice explanation for the effect. The shielded seedlings produced more growth, longer shoots, bigger leaves and more total leaf area.. Also, The leaves in the shielded group produced striking fall colors, while the two exposed groups stayed light green or yellow and were affected by areas of dead leaf tissue.

    All of these symptoms suggest to me that radio waves fool the trees into thinking they have more incoming solar radiation than they actually do. The tree only needs enough growth, leaves and leaf size, determined by incoming sunlight. Trees and plants in general are very good at growing exactly the way they need to, in order to maximize the sunlight they can catch and the amount of photosynthesis they can do. Also it makes sense that when the fall comes, lack of sunlight makes trees store the useful substances remaining in leaves (thus turning them red) and then dropping them in due time - false impression of still having enough sunlight could slow or partly block this process.

    I'm not saying radiation is inherently harmful, but presenting the idea that maybe aspen measure incoming sunlight in a way that also counts radio waves. They're both EM, and I see no reason why plants would have evolved to be very wavelength-specific about it. Indeed, measuring sunlight by a biological process is probably bound to be somewhat hazy, and it's possible that through sheer bad luck (or some chemical reason), this process somehow exaggerates the radio wavelengths.

    If this is true, it might be aspen-specific, apply to all plants, or be something in between. Different plants might have different "frequency responses". And in any case, aspen / plants would evolve within some period to cope with present levels in radio waves. Fun to think, maybe evolved aspen will die in hordes if we someday abruptly stop transmitting radio waves ;-).

    As a background I'll mention that I did the math once - assuming blackbody radiation, the sun's output is completely insignificant compared to human transmission at wavelengths we use for communication. There would actually be no comparable natural radiation at these wavelengths, which explains why we got such a good signal-to-noise ratio ;).

  50. Why is everyone on /. so obsessed ... by angel'o'sphere · · Score: 1

    ... with double blindness in research topics where it makes no sense at all?

    If I want to test the effects of parachutes on living people using them and have a test setup like this:
    a) 10 red packed parachutes - which will open perfectly
    b) 10 blue packed parachutes - which won't open at all
    c) 20 voluntary test persons - single blind in so far that they don't know about the purpose of the experiment nor about the fact that the blue ones won't open

    Now: why do you think I need a double blind test set up??? I don't get it. The outcome of such a test is completely unrelated to the fact that I could hand out the parachutes to the test persons, or some one else who does not know about the manipulation.

    Heck, I even can replace the volunteers by sacks of sand. I also can number the parachutes and give them a colour randomly. The effect will still be the same! The manipulated ones will not open.

    Double Blindness in studies only makes sense if knowing something about the test would influence its outcome. The only thinkable tests where that is true are tests on humans (does not matter if it is a medical treatment or a psychological or IQ test).

    Double blind studies got invented because a test patient who knew that he got the placebo did of course respond to the "medical" different than one who did not know that.

    And furthermore: nurses who knew what a patient should have gotten gave the true stuff instead of a placebo, or looked so pity-full that the patient could guess that he was getting the wrong stuff. So they invented: the nurse should know nothing.

    Do you really think scientific experiments like observing the sky with telescopes or conducting crashes in the LHC are done "double blind", rofl?

    regards

    angel'o'sphere

    --
    Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  51. Shielding effects? by Anonymous Coward · · Score: 0

    Could it be that the micro-nutrients provided by EM shielding (being metallic) could have a direct effect on plant growth, rather than radio waves?
    Which would also explain why faux shielding would not have an effect (since if it were metallic, it would be real shielding).

  52. NOW I AM TOTALLY CONFUSED !?!?!?!? by Anonymous Coward · · Score: 0

    Yes, totally and completely confused !?!?!?!?

    Utterly MILKED, in-fact ???

    Does this mean that those tin foil hats that people wear in sci-fi flicks, just to be made fun off, ACTUALLY WORK !?!?!?!?

  53. On bottlenecks by sean.peters · · Score: 1

    There is a steady increase in C02 Levels in the atmosphere. This should result in a corresponding increase in plant growth since plants are largely bottlenecked by the relatively low C02 levels in the modern vs the 1500ppm that existed when they evolved.

    Unless, of course, there are other bottlenecks such as nutrient availability that are holding them back. And there are - this experiment has already been done. Several varieties of plants were exposed to a set of conditions: normal (control), increased CO2, and increased CO2 plus soil amendment with certain minerals (iron, if I remember correctly, was one of them), and increased minerals alone. The plants exposed to increased CO2 alone and fertilizer alone showed increased growth, but not that much. Those exposed to both grew significantly more. I don't think you can conclude that because plants aren't going crazy with growth from increased CO2, that it must be because of exposure to RF - there are a lot of other issues that could cause this.

  54. The 60 Hz scare is still going strong... by sean.peters · · Score: 1

    Some makes of electric blanket now have rectifier/transformers built in, so that the blanket is heated by DC currents (to be sure, this is also good for safety: the voltage and current through the blanket are quite a bit lower) rather than 60Hz AC. I don't have the heart to tell these people that if they really want to avoid exposure to 60Hz radiation, they'll have to secure power to their houses... as they're soaking in it all day long otherwise.

  55. Children are easy to manipulate. by Fantastic+Lad · · Score: 1

    Hm.

    Mods of Troll and Funny.

    And yet. . , deep down inside you know there's something to it otherwise there wouldn't be such a strong reaction.

    It's not the same as promoting Christianity; (God arguments inspire the logical frustration response of, "Why can't they SEE? I must point out the truth!" And hence people dive into debate. But there is only quiet here.)

    It's not the same as promoting a welfare state; ("Let's All Share" arguments inspire selfishness and rage at the idea of people taking without deserving, and again people dive into debate.)

    It's not the same as taking a side in any of the boring contentious issues, like abortion, or partisan politics or what have you. It's not the same as any of those arguments or comments. It's rational, it makes sense, it's got plenty of solid information available to back it up for those willing to explore. So why the reactions?

    Why? Because it's painful truth which if one looks at if full on would require a very difficult transition away from current behavior patterns. People love and rely on their cell phones and WiFi devices. They Love them! They identify with them! And any suggestion that their identity may be causing them harm evokes not a sense of fascination and curiosity, but only Ego-based fear and emotional rejection. "Nothing I have chosen to devote myself is allowed to be wrong. Anybody who offers evidence suggesting it is, must be destroyed, shut down, laughed at! DENIED!" That's the ego talking. That's the child inside taking control.

    And what a great way to control an entire population. Children are easy to manipulate, after all.

    -FL

  56. Iron seeding has been tried by zooblethorpe · · Score: 1

    It hasn't been implemented because 1) it's expensive and no one knows whether it would really work

    I recall reading (I thought from a Slashdot posting) about a scientific group's trip to the southern Pacific, where they seeded the ocean with iron just as you describe. Sure enough, there was a big phytoplankton boom, successfully sequestering a goodly bit of carbon in their skeletons, and when they died, sure enough, they sank, taking that carbon to the bottom of the sea. (Some information here.) This would seem to suggest that it has indeed been implemented, albeit so far only on a limited and experimental basis.

    However, they also found that the process has a limit -- successive attempts at seeding a bloom in the same area failed. The speculation was that this is because phytoplankton rely on more than Fe and CO2, and that the first bloom had exhausted the local supplies of the other required nutrients, among them, oxygen. This, among other factors, leads us to your 2) fear of unintended consequences, which could indeed bear more modeling and study.

    Cheers,

    --
    "What in the name of Fats Waller is that?"
    "A four-foot prune."