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Advance Warning System For Solar Flares Hinges On Surprising Hypothesis

cylonlover writes "Scientists may have hit upon a new means of predicting solar flares more than a day in advance, which hinges on a hypothesis dating back to 2006 that solar activity affects the rate of decay of radioactive materials on Earth. Study of the phenomenon could lead to a new system which monitors changes in gamma radiation emitted from radioactive materials, and if the underlying hypothesis proves correct (abstract), this could lead to solar flare advance warning systems that would assist in the protection of satellites, power systems and astronauts."

199 comments

  1. But then by Sulphur · · Score: 4, Interesting

    radioactive decay is not as random as we thought. So where do we get random numbers that are good?

    1. Re:But then by Anonymous Coward · · Score: 5, Informative

      There's an enormous difference between the rate of decay, and predicting a decay. The observation is only the rate is effected, not the occurrence of an individual decay.

    2. Re:But then by Anonymous Coward · · Score: 0

      We don't. http://en.wikipedia.org/wiki/Mechanism_(philosophy)

    3. Re:But then by rwise2112 · · Score: 5, Funny

      radioactive decay is not as random as we thought. So where do we get random numbers that are good?

      Pentium processors?

      --

      "For every expert, there is an equal and opposite expert"
    4. Re:But then by X0563511 · · Score: 2

      Just because a flare makes it faster does not remove the entropy. It is still random.

      I'd be more concerned about atomic clocks and such.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    5. Re:But then by Chris+Mattern · · Score: 0

      radioactive decay is not as random as we thought.

      Radioactive decay exposed to solar radiation isn't as random as we thought.

      So where do we get random numbers that are good?

      By putting the radioactive decay in a shielded box? Which is what we do already...

    6. Re:But then by Anonymous Coward · · Score: 0, Offtopic

      Philosophers should just leave discussion of the real world to people who actually can get answers about it, and stay in their little fantasy world and play.

    7. Re:But then by Sique · · Score: 5, Informative

      Atomic clocks aren't based on radioactive decay. Just because they have "atom" in their name doesn't mean they are nuclear, e.g. based on a phenomenon in the atom core. Instead atomic clocks are based on the properties of the electron shells around the atom core.
      (Or to put it that way: atomic clocks are based on electromagnetics, not on the strong or the weak interaction.)

      --
      .sig: Sique *sigh*
    8. Re:But then by Anonymous Coward · · Score: 0

      >By putting the radioactive decay in a shielded box? Which is what we do already...

      How do you shield against a mechanism of action that isn't even understood, yet? What if the mechanism is based on gravity? Or based on some new, fundamental force we can't even detect, yet?

      What then?

    9. Re:But then by show+me+altoids · · Score: 2

      How about carbon dating then? I have no idea, just asking in case someone knows offhand.

      --
      I feel sorry for people that don't drink, because when they get up in the morning, that's as good as they're gonna feel
    10. Re:But then by sgunhouse · · Score: 3, Interesting

      Don't be silly, it's based on neutrinos. Not that we have an effective way to block those either.

      Radioactive decay generally produces neutrinos (or anti-neutrinos) as one of the decay products, hitting the nucleus with the opposite particle (anti-neutrinos if the decay would produce neutrinos, etc.) would tend to promote the decay, though obviously the nucleus is a very small target and (anti-)neutrinos do not interact strongly in any case. But if high solar activity produces an excess of neutrinos, those decays which would normally produce anti-neutrinos will be promoted, or vice versa. (Not my field hence I'm not sure which is actually involved here.)

    11. Re:But then by X0563511 · · Score: 1

      I don't think it's precise enough to be effected by this, as flares are incidental and not a constant thing.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    12. Re:But then by maxwell+demon · · Score: 1

      Or in yet other words: Atomic clocks are indeed atomic, unlike most things commonly labelled "atomic" which are actually nuclear.

      --
      The Tao of math: The numbers you can count are not the real numbers.
    13. Re:But then by ceoyoyo · · Score: 1

      IF the rate of radioactive decay changes with flare activity, which seems unlikely, then the rate we use for carbon dating is the average, which will work just fine over any reasonable timespan. Plus the effect is extremely small.

    14. Re:But then by Anonymous Coward · · Score: 0

      Don't be silly, it's based on neutrinos.

      They THEORIZE it's based on neutrinos. They have no concrete evidence yet, I hold out for a more exciting explanation, because a new fundamental force would be way more awesome. Being neutrino-induced would be relatively boring.

    15. Re:But then by K.+S.+Kyosuke · · Score: 4, Funny

      How about carbon dating then? I have no idea, just asking in case someone knows offhand.

      Don't worry, you're not the only one here who doesn't how to date carbon, especially if nitrogen, oxygen and hydrogen are also involved.

      --
      Ezekiel 23:20
    16. Re:But then by pushing-robot · · Score: 1

      s/Pentium/Ivy Bridge

      (...though it's not the first chip to have a hardware RNG.)

      --
      How can I believe you when you tell me what I don't want to hear?
    17. Re:But then by TechyImmigrant · · Score: 1

      RdRand

      --
      I should use this sig to advertise my book ISBN-13 : 978-1501515132.
    18. Re:But then by TechyImmigrant · · Score: 1

      >s/Pentium/Ivy Bridge [ieee.org]

      And every post Ivy Bridge product. Just sayin'

      --
      I should use this sig to advertise my book ISBN-13 : 978-1501515132.
    19. Re:But then by show+me+altoids · · Score: 1

      Thanks, yeah, you're probably right. After I posted I looked further down the thread and thought, Oh shit, everyone's going to think I'm a creationist nutjob,

      --
      I feel sorry for people that don't drink, because when they get up in the morning, that's as good as they're gonna feel
    20. Re:But then by TechyImmigrant · · Score: 4, Informative

      Don't be silly, it's based on neutrinos.

      They THEORIZE it's based on neutrinos. They have no concrete evidence yet, I hold out for a more exciting explanation, because a new fundamental force would be way more awesome. Being neutrino-induced would be relatively boring.

      No. They HYPOTHESIZE that it is based on neutrinos.

      --
      I should use this sig to advertise my book ISBN-13 : 978-1501515132.
    21. Re:But then by thePjunisher · · Score: 1

      Yeah, and carbon dating is also calibrated to known dates, from dendrochronology, among others.

    22. Re:But then by arse+maker · · Score: 1

      They use atoms, I believe that justifies the name Atomic.

    23. Re:But then by Anonymous Coward · · Score: 5, Funny

      A planet much further away would be less effected by changes in the sun thanks to inverse square law. I suggest pulling random numbers out of uranus.

    24. Re:But then by ceoyoyo · · Score: 1

      Also, one of their explanations for why nobody else seems to be able to measure these changes in decay rate are that it only affects certain atoms... the ones they happen to be measuring.

    25. Re:But then by skids · · Score: 2

      However, a long term transient in the cause of the phenomena would indeed effect carbon dating -- and given the sun is the suspected source of this cause, a long term transient is very probable. Then the question is, by any significant amount? I'd assume this is a pretty tiny variation or it would have been rather evident to those first examining decay rates, so likely the effect would be pretty insignificant.

    26. Re:But then by Lips · · Score: 1
    27. Re:But then by ceoyoyo · · Score: 1

      Actually, the suspected source is their detector.

      But supposing it IS the sun and it does affect carbon, the output of the sun is pretty stable on the timescale that carbon dating is used, and carbon dating is already calibrated to other dating standards because the ratio of carbon isotopes in the air changes.

    28. Re:But then by wierd_w · · Score: 1

      That would still infuence atomic clocks.

    29. Re:But then by Anonymous Coward · · Score: 0

      Atomic clocks do not rely on radioactive decay. They depend on a few other things, but the most accurate ones today rely on energy states. see: http://www.youtube.com/watch?v=p2BxAu6WZI8

    30. Re:But then by lennier · · Score: 1

      No. They HYPOTHESIZE that it is based on neutrinos.

      HYPOTHESIZING that one could time travel within one's own lifetime, Dr Sam Beckett steps into the Quantum Leap Accelerator - after having first conducted a rigorous postmortem defense of his experiment to the ethics committee, wiring the accelerator console to a roulette wheel r as an experimental control, and arranging a double-blind statistically significant sample set - and either vanishes or doesn't with probability p correlated with r, except in the case where his wavefunction fails to collapse, because, well, Quantum! In which case both.

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    31. Re:But then by yndrd1984 · · Score: 1

      They use atoms, I believe that justifies the name Atomic.

      So an M-80 counts as an atomic bomb?

      I'll keep working on a similar joke that involves my penis.

    32. Re:But then by slashmydots · · Score: 1

      radioactive decay is not as random as we thought. So where do we get random numbers that are good?

      The truest random values, As Seen On Slashdot, are photons split by a mirror with some quantum thing going on...I dunno, they're PCI cards and they're not that expensive and a bunch of companies use them lol. Their miniscule measured variance from 50/50 was quite impressive.

      But speaking of what you just said, how many times since I graduated high school are they going to change the laws of physics? lol. Last I heard, radioactive decay was absolutely, perfectly 50/50 over a half life and cannot be influenced or affected by anything but time dilation. So...that would be neat, lol, but I don't think that's what they're talking about. Can anyone explain how anything anywhere ever could make isotopes decay faster or slower?

    33. Re:But then by Kaenneth · · Score: 1

      Radioactive decay was always a statistical average.

    34. Re:But then by painandgreed · · Score: 1

      How about carbon dating then? I have no idea, just asking in case someone knows offhand.

      While the theory of carbon dating is roughly what is used, it is compared to and corrected by the known amounts in actual samples whose years are known. Typically they go by tree rings, figure out what rings correspond to what years and then do carbon testing on samples from each ring, and then compile the data to modify their testing on other items. There was a news story not too long ago about a rise in carbon-14 in one particular tree rings sample and that they thing there must have been a supernova that year. So, such things do affect carbon dating, but we are working off of tested observations, not pure theory when coming up with dates.

    35. Re:But then by Anonymous Coward · · Score: 0

      How so? What does radioactive decay have to do with atomic clocks? Nothing that I'm aware of. Atomic clocks are based on the transition of electron orbits from the excited to the ground-state (usually of Cesium atoms).

    36. Re:But then by slick7 · · Score: 3, Funny

      That would still infuence atomic clocks.

      Time was invented by the Swiss, so they could sell watches.
      Space and time are relative, the only space available is here, the only time available is now. Here and now. Hear and know.

      --
      The mind conceives, the body achieves, the spirit manifests.
    37. Re:But then by FatdogHaiku · · Score: 1

      radioactive decay is not as random as we thought. So where do we get random numbers that are good?

      http://xkcd.com/221/

      --
      You have the right to remain sentient. If you give up the right to remain sentient, you will be elected to public office
    38. Re:But then by jiriw · · Score: 3, Interesting

      Ehm ... no. Atomic clocks do not work by means of radioactive decay. They work by measuring specific electron transitions in atoms through the photon radiation this phenomenon emits. That process is actually quite akin to what happens in lasers (and lasers do not use radioactive decay, except in some very specific cases as a pumping power source). Atoms used for this process are for example Rubidium and Cesium. The 'art' here is to create electron transition produced photons of such precision that their frequencies differ only minutely and be able to precisely measure that frequency of course. Things that make the measurements not as reliable as could be and thus are tried to be avoided are, amongst other things, uncontrolled movement of the atoms (resulting in doppler shift) due to too high a sample temperature (which makes the atoms move quicker and give an increased chance of collisions) and external radiation (which would include almost any type of solar radiation and certainly any type that could be of influence). So modern atomic clocks are shielded, cooled to near absolute zero and their atoms used are tried to be made to move in a very predictable way.

      I'm not a scientist in the field of natural physics. Only interested in it. (Full disclosure: I did study the subject for a year but was not quick enough with the math involved and too much interested in computers)
      It is very possible the oscillations in radioactive decay measured by the scientists is due to fluctuations in Neutrino emissions caused by or which also cause the solar flare. I wouldn't know any other type of solar radiation which could give an 'advanced' warning (because it is the 'first to arrive' due to going through almost everything with ease) and could influence radioactive decay even of (relatively) shielded samples.

      Neutrino emissions do not (measurably) influence atomic clocks because the forces involved in the 'atomic clock process' are electromagnetic. Neutrinos only interact with atoms through the weak nuclear force which do play a role in radioactive decay.

    39. Re:But then by jiriw · · Score: 0

      Actually... no. Atomic clocks work through measuring the frequency of photons created through electron transitions in an atom. This is an electromagnetic process and much the same as the process which make lasers work (and lasers do not use radioactive decay either, except in rare instances where it's used as a pumping source).
      Modern atomic clocks use Cesium or Rubidium atoms for this process. The clocks are shielded and the atoms are cooled to near absolute zero and be made to move in predictable ways so the photons they emit are all of the same frequency.

      There is already suggested that fluctuations in emitted Neutrinos might cause the variation in decay which they measure. This is quite plausible because as far as I know, Neutrino radiation is the only radiation from the sun which can reach anything on Earth (including the samples) relatively unharmed, goes through matter (including all that other fusing or non-fusing Hydrogen and Helium gas in the sun) with very little interaction and is therefor first to arrive at Earth and does its interaction, if it does interact (almost entirely) through the Weak Nuclear Force. The force which also plays a significant role in radioactive decay. So -if- a solar flare is accompanied by a change in Neutrino radiation (or maybe even caused by it?), that will probably be the first thing we could notice about an upcoming solar flare.

      However, Neutrinos do (almost ... there are some theories it might do a very tiny bit) not interact with matter through the electromagnetic force. Because that's the force used in the 'Atomic clock process', Neutrinos do not measurably impact atomic clocks.

    40. Re:But then by jiriw · · Score: 1

      Oh, bother. Why did I think my previous contribution was lost in the interwebbial void and forgot to check if I had all comments loaded. Sorry about that everyone....

    41. Re:But then by mcswell · · Score: 1

      Didn't Data try that?

    42. Re:But then by SEE · · Score: 1

      Sure. Spontaneous fission is one of the many forms of natural radioactive decay, and a perfectly routine method of making an isotope decay by fission sooner is to whack it with a neutron. Thus the nuclear reactor . . . including the natural nuclear reactors at Oklo some two billion years ago. We don't usually call neutron-induced fission radioactive decay, but that's more a matter of definitions useful for human purposes than a bright demarcation line in the physics.

      Radioactive decay in general is believed to be induced by quantum vacuum fluctuations disrupting the equilibrium of an unstable nucleus. Quantum vacuum fluctuations are random in both timing/location and magnitude, and so are consistent with the unpredictability of any particular atom being affected, and with the more stable nuclei having longer half-lives as they would need a bigger push.

      So, there is no reason in principle that, say, a neutrino colliding with a nucleus, could not cause a disruption similar to what a neutron does in induced fission or quantum vacuum fluctuations are believed to do in most decay. Whether it will be categorized separately (like is usually done for neutron-induced fission) probably depends on if it's a large enough or useful enough effect to make the distinction worthwhile, or whether it's more human-convenient to treat it as a small variable in the rate of decay.

    43. Re:But then by bcmm · · Score: 1

      Also, not everything nuclear invoves decay and radioactivity. This is why NMR had to be rebranded as MRI.

      --
      # cat /dev/mem | strings | grep -i llama
      Damn, my RAM is full of llamas.
    44. Re:But then by Anonymous Coward · · Score: 0

      Yup. That's also why my parents called me Atom. And my sister. And younger brother.
        Our dog's named Electron.

    45. Re:But then by ifdef · · Score: 1

      I haven't read any explanation of why they think this is happening, but is it actually true that "the sun is the suspected source of this cause"? I would have thought that it was some change in the environment (the local properties of space) that would cause both the change in decay rate and the solar flares.

    46. Re:But then by Anonymous Coward · · Score: 0

      Everyone together now: less affected.

      Considering only the verb forms of affect and effect:
              If A affects B, that means A has an influence on B.
              If A effects B, that means A creates B.

      More information at http://public.wsu.edu/~brians/errors/affect.html.

      =====
      Brought to you by the committee to stamp out using "impact" as a verb.

  2. Rubbish by Anonymous Coward · · Score: 2, Funny

    Nothing can effect the rate of decay of radioactive materials; it is, has been, and always will be constant. Just like the carbon 12/14 balance.

    1. Re:Rubbish by SJHillman · · Score: 2

      A pretty bold statement considering how little time we've really understood radioactive materials enough to study them and how many new things we're still finding out about physics.

    2. Re:Rubbish by Goaway · · Score: 5, Informative

      That is definitely not true. Radioactive decay through electron capture is well known to depend on external factors, including pressure and temperature. Inverse beta decay is an induced decay which depends entirely on an external neutrino flux, such as that from the sun.

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

      Maybe you care to read a bit more on that topic: http://web.mit.edu/redingtn/www/netadv/XperDecRat.html

    4. Re:Rubbish by vlm · · Score: 5, Informative

      Nothing can effect the rate of decay of radioactive materials; it is, has been, and always will be constant. Just like the carbon 12/14 balance.

      Half right half wrong.

      Here's a whole section of crazy weird isotopes in crazy weird situations undergoing crazy weird decay modes that can be altered:

      http://en.wikipedia.org/wiki/Radioactive_decay#Changing_decay_rates

      So in general that half of the statement is wrong because there's a microscopic handful of really weird, pretty well understood outliers.

      On the other hand your very specific ref to carbon isotope decay rate is apparently correct. That's very well understood, heavily studied, trivially cheaply and repeatedly tested (nice short half lives, more or less).

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    5. Re:Rubbish by SuricouRaven · · Score: 0

      If you're trying to be a creationist troll, it helps if you avoid making your references so obscure only a seasoned internet debater would even recognise a reference is being made.

    6. Re:Rubbish by Anonymous Coward · · Score: 0

      Just like everyone can agree which god did what, where and how quickly, and which humans he likes best.

    7. Re:Rubbish by Anonymous Coward · · Score: 0

      Sorry: the parent message should have been posted as a child of its grandparent.
      (Plus: I forgot my password, and the mail account I registered with is no more existent)

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

      Half right half wrong.

      Should have left it there for a plus 5 funny. It's just how it appeared on my screen and I laughed out loud. Cheers for that.

    9. Re:Rubbish by Anonymous Coward · · Score: 0

      But all creationists are trolls right? Maybe you meant young earther or old earth denialist?

    10. Re:Rubbish by Anonymous Coward · · Score: 0

      > On the other hand your very specific ref to carbon isotope decay rate is apparently correct. That's very well understood, heavily studied, trivially cheaply and repeatedly tested (nice short half lives, more or less).

      Didn't RTFA, but the abstract suggests it might be not that clear a situation: http://arxiv.org/abs/1204.5953

    11. Re:Rubbish by arse+maker · · Score: 1

      The key though is that is beta decay. A process that neutrinos don't participate in.

    12. Re:Rubbish by K.+S.+Kyosuke · · Score: 2

      If this is true, why don't we have neutrino telescopes based on radioactive decay yet? Somehow I'm not convinced that these observations are unequivocal.

      --
      Ezekiel 23:20
    13. Re:Rubbish by Anonymous Coward · · Score: 0

      We do.

      I am most familiar with the Sudbury Neutrino Observatory, which was set up to look for evidence of neutrino oscillations in solar neutrinos. The neutrino detection scheme involved photo-detection of Cerenkov radiation from superluminal-in-water decay products from neutrino-assisted beta events. Because of conservation of momentum, directional information from the Cerenkov cone could be used to identify the incoming direction of the neutrinos, which helps to distinguish solar neutrinos from other types of events.

      Several neutrino detectors, including I believe the Kamioka detector in Japan, got a good directional signal from SN1987a.
       

    14. Re:Rubbish by wonkey_monkey · · Score: 1
      Oh, the arrogance of the AC.

      Nothing can effect the rate of decay of radioactive materials

      Uh huh. Want to bet your imaginary physics degree on that?

      Just observing a particle (as I understand it; I may have it wrong) is enough to change its decay rate.

      --
      systemd is Roko's Basilisk.
    15. Re:Rubbish by arse+maker · · Score: 2

      There are lots, this is how we (roughly) confirmed the properties of neutrinos.

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

      They are extremely hard to study due to the fact they barely interact with baryonic matter. Trillions are passing through us every second.

    16. Re:Rubbish by Aardpig · · Score: 4, Informative

      The key though is that is beta decay. A process that neutrinos don't participate in.

      Say what? How does beta decay conserve lepton number without producing an antineutrino?

      --
      Tubal-Cain smokes the white owl.
    17. Re:Rubbish by jeffmeden · · Score: 1

      Nothing can effect the rate of decay of radioactive materials; it is, has been, and always will be constant. Just like the carbon 12/14 balance.

      Half right half wrong.

      Now that you've observed it, certainly you know if his post is dead or alive...

    18. Re:Rubbish by jd · · Score: 1

      All the early chlorine-based neutrino detectors were based on radioactive decay events resulting from a change in isotope, so yes we do. Not in the form of change in decay rates, but certainly in the form of decay event counts.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    19. Re:Rubbish by jd · · Score: 1

      The problem with carbon ratios is that the neutrino flux on or around the Earth's surface will be essentially constant, at least insofar as neutrinos of precisely the correct energy. (Remember, first rule of QM: Only valid states are possible, you can't absorb a neutrino if it produces an invalid state.)

      To test the C12/C14 ratio theory, you'd need to have something organic in two environments - one with maximum exposure to the neutrinos (say, on the far side of the moon) and the other with minimum exposure to the neutrinos (say, inside a million gallon container of chlorine, dropped into the deepest oceanic trench you can find). Because absorption rates are low, you'd want the experiment to run a long time. If you're growing trees, most live over a century. That should be ample.

      After the century is up, collect the samples together and compare C12/C14 ratios. (Due to time varying under gravity, you need to calculate when the sample says the century is up, not when the observer does.) If the C12/C14 claim is valid, the numbers will be identical. If the C12/C14 claim is invalid, the numbers will differ, but you won't know what particular particles caused the difference.

      Since the experiment will never be performed, there is no -experimental- evidence that neutrino flux won't alter decay rates. (Remember, the early neutrino detectors in the Black Hills detected something like 6 events a month. It was extremely small and that detector was extremely large. For most samples for C12/C14, the sample is a few grams of matter, not a few tonnes. The difference in flux between the inside of an Egyptian pyramid and a regular woodland will be near-enough bugger all. AMS in carbon dating uses tiny lab systems - the largest I've seen AMS work done on was a 20 MeV tandem accelerator at Daresbury and even that never had the ability to determine if you were getting a consistent change of perhaps 1-2 atoms per megatonne of material (the sort of variation you'd see in any likely circumstance between different laboratory conditions).

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    20. Re:Rubbish by Anonymous Coward · · Score: 0

      Shhhh... Don't tell him about that kind of thing. Besides, we're probably better off when we let people like that think nuclear reactors run on magic and fairy dust.

    21. Re:Rubbish by Anonymous Coward · · Score: 0

      "On the other hand your very specific ref to carbon isotope decay rate is apparently correct. That's very well understood, heavily studied, trivially cheaply and repeatedly tested (nice short half lives, more or less)."

      Wouldn't the short half-lives mean that they're less likely to have tested for this effect? Because they would have started and finished their testing during similar Sun conditions.

    22. Re:Rubbish by sjames · · Score: 1

      Perhaps the same reason the Chinese alchemists in the 9th century didn't have AK-47s.

  3. Harness by SJHillman · · Score: 3, Interesting

    Is there any way we could harness the power of solar flares to provide energy (either for space-based installations or to beam back to Earth)? Now if we know when they're coming farther in advance, it seems we could better take advantage of them. Not a continuous stream of energy, to be sure, but it a boost every now and then could help take the load off other sources of energy.

    1. Re:Harness by GameboyRMH · · Score: 2

      Beaming anything back to earth would face the same transmission problems that space-based solar arrays would...and we haven't built one of those even though they could deliver much more reliable power.

      --
      "When information is power, privacy is freedom" - Jah-Wren Ryel
    2. Re:Harness by jeffmeden · · Score: 1

      Is there any way we could harness the power of solar flares to provide energy (either for space-based installations or to beam back to Earth)? Now if we know when they're coming farther in advance, it seems we could better take advantage of them. Not a continuous stream of energy, to be sure, but it a boost every now and then could help take the load off other sources of energy.

      Sure, we just need a solar windmill about 10,000 miles in diameter, and a base to rest it on that doesnt cause enough gravity for it to collapse (so the moon is out). Crack that and yes the solar wind would be a pretty reliable source of energy.

    3. Re:Harness by MozeeToby · · Score: 2

      If you can build something on the scale of effectively harvesting a solar flair for energy, there are any number of easier, most consistent, more powerful (over the long run) sources that you could harvest instead. Your suggestion would be kind of like trying to power a military radio by absorbing the kinetic energy of bullets being fired at the soldier carrying it. Physically possible? Yeah, probably. But there are easier ways to solve the problem.

    4. Re:Harness by arse+maker · · Score: 1

      They are called solar panels, or more generally most of the life on earth.

    5. Re:Harness by Jason+Levine · · Score: 1

      Given that a single solar flare can "release 10% as much energy as the entire Sun, the equivalent of 10 billion one-megaton nuclear bombs" (Source: https://plus.google.com/108952536790629690817/posts/T7RU9pEe3nL ), I'd say this is out of our capacity to harness. However, if we could, considering that the world uses 474×10^18 joules of energy and a solar flare can release up to 6 × 10^25, we could power everything on the planet for the next hundred thousand years or so.

      --
      My sci-fi novel, Ghost Thief, is now available from Amazon.com.
    6. Re:Harness by vlm · · Score: 1

      Sure, we just need a solar windmill about 10,000 miles in diameter, and a base to rest it on that doesnt cause enough gravity for it to collapse (so the moon is out)

      Not necessarily. I love mega-engineering projects like placing a dam across the straits of Gibraltar and all that. If a flare is ionized particles I think you'd do a lot better to go elect eng instead of mech eng and make a peculiar array of wires and permanent magnets. Look at the work the MHD generator people have done and scale it to lower power. It would probably look like the worlds weirdest high gain HF shortwave antenna array. As a gut level guess it would have to be pretty freaking huge to power, say, a single LED. However, on a moon base, if you had spare manufacturing capacity and absolutely nothing better to do with your resources and time, an emergency lighting solution that will last 6 billion years, plus or minus meteor erosion, is kind of cool. Even if its only one wimpy dim LED.

      I have not run the math but I think you're better off collecting microwave background radiation from deep space using the same length of wire. Essentially a real low powered "rectenna" from the microwave power satellite people except using cosmic background radiation. Also it would last longer than the life of the sun. On the other hand after the sun goes nova the moon base is probably screwed anyway. Probably.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    7. Re:Harness by jeffmeden · · Score: 1

      Sure, we just need a solar windmill about 10,000 miles in diameter, and a base to rest it on that doesnt cause enough gravity for it to collapse (so the moon is out)

      However, on a moon base, if you had spare manufacturing capacity and absolutely nothing better to do with your resources and time, an emergency lighting solution that will last 6 billion years, plus or minus meteor erosion, is kind of cool. Even if its only one wimpy dim LED.

      I have not run the math but I think you're better off collecting microwave background radiation from deep space using the same length of wire. Essentially a real low powered "rectenna" from the microwave power satellite people except using cosmic background radiation. Also it would last longer than the life of the sun. On the other hand after the sun goes nova the moon base is probably screwed anyway. Probably.

      How do we get supplies there? Dunno. How do we build shelters there? Dunno. How do we grow food and harness oxygen there? Dunno. But hey, emergency lighting is a slam dunk!

      *I know we are "most of the way there" on all of these technologies, it's just funny how we get ahead of ourselves sometimes...

    8. Re:Harness by jeffmeden · · Score: 1

      If you can build something on the scale of effectively harvesting a solar flair for energy, there are any number of easier, most consistent, more powerful (over the long run) sources that you could harvest instead. Your suggestion would be kind of like trying to power a military radio by absorbing the kinetic energy of bullets being fired at the soldier carrying it. Physically possible? Yeah, probably. But there are easier ways to solve the problem.

      Ok, out with it then, what's the electrical potential of bullets at high velocity?

    9. Re:Harness by Anonymous Coward · · Score: 0

      It depends on the magnetic or electrostatic fields that the bullet is passing through?

      Though when I read the post you replied to, I first imagined piezoelectric body armor... extract some charge from each bullet impact!

    10. Re:Harness by lennier · · Score: 1

      Your suggestion would be kind of like trying to power a military radio by absorbing the kinetic energy of bullets being fired at the soldier carrying it.

      I like your can-do attitude, soldier! That's the kind of transformative thinking that will get the revolution in military affairs right off the ground. We'll get on this right away. Spin off a defense contractor. Call it PowerCorps-E. I have Donald Rumsfeld on the line. Let's do lunch.

      --
      You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
    11. Re:Harness by Anonymous Coward · · Score: 0

      Your suggestion would be kind of like trying to power a military radio by absorbing the kinetic energy of bullets being fired at the soldier carrying it.

      Or the soldier could be firing bullets to power their own equipment.
      1) Think reverse rail gun. The bullet projectile just needs to be magnetized iron (or neodymium), and the gun barrel needs coils of wire around it.
      2) Use the gas vapor from the bullet being fired to generate some electricity. It'd look like a weird gun silencer/turbine combo.
      3) Put a bunch of piezoelectric materials near the gun barrel, and when it's fired they'll generate electricity from the sound waves.
      4) profit?

      If you can build something on the scale of effectively harvesting a solar flair for energy, there are any number of easier, most consistent, more powerful (over the long run) sources that you could harvest instead.

      The solar wind is always there. Harvesting the solar wind would always work, and flares would just provide a random surge of power. It's not the greatest idea ever, but it's not completely impractical either. Whether or not there's a good reason for it depends on circumstances. For example, a deep space satellite could possibly be propelled by the solar wind and powered by it at the same time.

    12. Re:Harness by Anonymous Coward · · Score: 0

      Is there any way we could harness the power of solar flares to provide energy?

      A solar flare is a temporary enhancement in the solar wind. Even during a solar flare, the solar wind contains much less energy than sunlight. We already have ways to harness the power of sunlight.

    13. Re:Harness by drainbramage · · Score: 1

      Put it on top of the turtle.

      --
      No brain, no pain.
  4. Not Eureka by Relic+of+the+Future · · Score: 4, Interesting

    The greatest discoveries don't come from a "Eureka!", but from a "Huh, that's odd..." (Be careful though, the young earthers are already jumping on this to try and disprove carbon dating.)

    --
    Those who fail to understand communication protocols, are doomed to repeat them over port 80.
    1. Re:Not Eureka by TexVex · · Score: 1

      the young earthers are already jumping on this to try and disprove carbon dating

      Apparently the effect slows the rate of decay, meaning the isotopes are actually slightly older than estimated.

      --
      Fun with Anagarams! LADS HOST, SHALT DOS. HAS DOLTS. AD SLOTHS, HATS SOLD. ASS HO, LTD.
    2. Re:Not Eureka by Anonymous Coward · · Score: 0

      If solar flares actually slow down decay, it means objects would be older than they appear. Of course, logic doesn't apply to creationism so I guess they'll find a way to make it "work".

    3. Re:Not Eureka by Sique · · Score: 2

      ... which is a quote from Isaac Asimov.

      --
      .sig: Sique *sigh*
    4. Re:Not Eureka by maxwell+demon · · Score: 4, Funny

      the young earthers are already jumping on this to try and disprove carbon dating

      Apparently the effect slows the rate of decay, meaning the isotopes are actually slightly older than estimated.

      True believers are above such mundane details. ;-)

      --
      The Tao of math: The numbers you can count are not the real numbers.
    5. Re:Not Eureka by K.+S.+Kyosuke · · Score: 1

      The greatest discoveries don't come from a "Eureka!", but from a "Huh, that's odd..."

      That's funny. I've often seen "Huh, that's odd" in lists of famous last statement. Well, I guess these two aren't exclusive.

      --
      Ezekiel 23:20
    6. Re:Not Eureka by Relic+of+the+Future · · Score: 1

      Ah, thank you. I couldn't remember from whom I'd heard it (and he apparently said "funny", not "odd".)

      --
      Those who fail to understand communication protocols, are doomed to repeat them over port 80.
    7. Re:Not Eureka by Anonymous Coward · · Score: 1

      "Local single mom discovers weird trick for predicting solar flares"

    8. Re:Not Eureka by Dragonslicer · · Score: 1

      For those that don't know the full quotation:

      "The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' (I found it!) but 'That's funny ...'"

    9. Re:Not Eureka by Anonymous Coward · · Score: 0

      "young earthers are already jumping on this to try and disprove carbon dating" And why not? if radioactive decay is not 'linear' after all...

    10. Re:Not Eureka by sjames · · Score: 1

      In some cases it is your colleague who makes the great discovery after you say "Huh, that's odd..."

    11. Re:Not Eureka by coach330 · · Score: 1

      The greatest discoveries don't come from a "Eureka!", but from a "Huh, that's odd..." (Be careful though, the young earthers are already jumping on this to try and disprove carbon dating.)

      That's pretty much what it was...."Huh, that's odd" when I saw the change associated with the flare. That's when we went and looked at the oscillations we'd seen in published data, and looked for possible causes.... As to the question of age of the Earth, if you look at the published data...it's generally decaying faster in the winter and slower in the summer, the net effect is the standard decay curve for long-lived nuclides. Some estimates for the effects on C-14 were presented by A. Sanders here: http://arxiv.org/abs/0808.3986 It's all very interesting science, whatever it turns out to be. --JJ

  5. Constant? by Anonymous Coward · · Score: 2, Interesting

    If this is the case, then what does this mean for dating methods that depend on decay rates?

    1. Re:Constant? by CSMoran · · Score: 1

      It means a very, very low level of noise that then averages out to close to zero over the timescales involved.

      --
      Every end has half a stick.
    2. Re:Constant? by leuk_he · · Score: 1

      Nothing. Nothing at all.

      The average decay rate is not really affected, since it is periodically. Also this effect is only measured in chlorine 36.

      the effect is larger than i expected, it is +/- 4%

      Carbon dating is NOT affected. It is based on the radioactivity in the athmosphere, which is not a constant over the years anyway. It is calibrated by counting year rings in tree's

    3. Re:Constant? by sjames · · Score: 1

      They'll have to go back to dinner and a movie.

  6. Variable rate of decay? by mdvolm · · Score: 3, Interesting

    If the rate of radioactive decay can vary, how would this affect things like carbon 14 dating? Very interesting.

    1. Re:Variable rate of decay? by Anonymous Coward · · Score: 0

      The changes in rates of decay they are discussing probably won't effect carbon 14 dating very much. If I remember correctly they were talking about a temporary 1% change in the rate.

    2. Re:Variable rate of decay? by Baloroth · · Score: 3, Insightful

      It depends. These phenomenon might be peculiar to the isotope in question (chlorine 36), could be insignificant entirely, or could average out over a long period of time to the established rate in any case. Decay rates are not entirely constant in every particle, either: ionization can affect the decay rate significantly. I think we'll have to wait until further research to really know for sure the complete implications of this discovery, or indeed if it is even true.

      --
      "None can love freedom heartily, but good men; the rest love not freedom, but license." --John Milton
    3. Re:Variable rate of decay? by Anonymous Coward · · Score: 2, Informative

      Actually according to http://arxiv.org/abs/0808.3986, it might.

    4. Re:Variable rate of decay? by arse+maker · · Score: 1

      Ill pretend this theory isn't completely nuts and say that it wouldn't have a huge effect. The observed change is tiny. Far below the margin of error.

    5. Re:Variable rate of decay? by Anonymous Coward · · Score: 1

      C14 is already known to vary in our atmosphere due to the variation of cosmic rays from our trip around the Milky Way. So there already exists calibrations from other dating sources to correct for this (and probably other) sources of error.

      Also, the rate of change must simply be very small, otherwise we've have noticed it long ago.

    6. Re:Variable rate of decay? by vlm · · Score: 1

      If the rate of radioactive decay can vary, how would this affect things like carbon 14 dating? Very interesting.

      The article is behind a paywall which really sucks for scientific progress. Naughty scientists, naughty, naughty. Stuck in the pre internet 80s are we?

      Anyway its a "percent or so" fluctuation with a power peak matching the decade or so long solar cycle. So if it applies to carbon exactly like it measured in chlorine (darn unlikely) you'll never be able to carbon date more accurately than, say 1% of the decade or so solar cycle or in other words about a month, at least on first principles. Its like there's an inherent, measurable source of time-jitter in the decay rate signal of about a month. So its nonsense to specify a carbon date beyond a single decimal point of years or there's only one digit of sig figs or however you wanna say it. By first principles I mean given one object and a miracle amazing decay sensor and perfect mass balance and an infinite amount of time to take measurements. By comparing something with an age known more accurately than a month from "about" the same era, you COULD (but in practice probably can't) null the variations that hit both objects to get a measurement more accurate than a month.

      Another huge problem is the experiments were done on an obscure chlorine isotope. Since there seems to be no known mechanism in this case, but other known mechanisms that change decay rate are extremely specific to individual isotopes, there seems reason to guess there would be no similar variation in carbon. That combined with the extreme popularity of carbon dating compared to Fing around with radioactive chlorine, it seems very likely the effect is smaller or doesn't exist at all in carbon. "Seems unlikely" is not exactly an iron clad disproof.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    7. Re:Variable rate of decay? by Anonymous Coward · · Score: 1

      Depends on a number of things, such as the mode of decay (variations in one mode may not affect another, and C-14 may depend on different modes). It also depends on the magnitude of the variation. Here we are talking about extremely small variations, so if you're thinking "this means dates could be off by 50%", no, not plausible. This is a small effect, on the order of +-5%. That's assuming these measurements can be taken at face value. I doubt it. Something interesting may be going on, but variations of +-5% over geological scales would probably be obvious. Typical radiometric methods (of which C-14 is only one, and only applies to the last 100000 years or so) often achieve +-1% measurement uncertainties. If decay rates were regularly varying like this or worse over geological scales, it would be noticed. Furthermore, because these seem to be seasonal and cyclic variations, the exact variations they are observing here would get averaged out over geological time even if they were happening.

      In actuality, decay rate variations are already well established for the electron capture mode of decay. But A) the variations are very small (usually fractions of a %) at astronomical pressures and other conditions that don't apply to typical geological samples (e.g., if atoms are ionized, there are few electrons around to *be* captured); B) it kind of makes sense that extremely high pressures, molecular bonds, and ionization might affect the electron cloud orbiting around the nucleus, which is relevant to *this* mode of decay -- i.e. there's a plausible reason to expect variation; and C) the electron capture decay rate variations don't affect dating methods that don't involve electron capture decay modes, of which there are several. If they amounted to anything significant for one mode versus another for real geological samples, you'd see big and systematic discrepancies between multiple methods using different isotopic systems and decay modes.

      The fact that they're measuring decay events from a volume of gas seeping out of a radioactive sample (phosphate rock in the bottom of a steel tank sitting in a shed outdoors), rather than a solid sample of a single pure/known isotope, makes me worry about some kind of data collection affect having nothing to do with decay rates. Gasses are compressible, can change volume, etc. They've tried to adjust for pressure, temperature, and other variations, and they note that they don't correlate with the signals they are seeing, but I'm still suspicious. I'm surprised they didn't consider humidity, and don't provide any plots for that environmental factor. It might affect the way the radon diffuses out of the phosphate sample. Anyway, it's interesting, but I don't think other possibilities have been eliminated thoroughly enough. Maybe all that they are measuring is variations in *radon*output* from the phosphate sample, and not decay rates *of* radon (technically they're detecting parts of the decay chain of radon, rather than radon directly). It would be interesting to try a similar experiment but with a solid sample, a simpler isotopic system, and far below the ground surface, where the environment is a lot more stable (e.g., in a mine).

    8. Re:Variable rate of decay? by riverat1 · · Score: 1

      If the rate of solar flaring has not changed significantly over the last 60,000 years* or so then it doesn't have much effect.

      *60,000 years being the approximate oldest useful dating from carbon 14.

    9. Re:Variable rate of decay? by vlm · · Score: 1

      Maybe all that they are measuring is variations in *radon*output* from the phosphate sample, and not decay rates *of* radon

      I like your idea. The problem is that's even worse/weirder/cooler than the "simpler" decay problem. You end up with something like the viscosity of radon varies with neutrino flux, so the viscosity change alters how fast it leaks out of tiny fissures in the rock. In a way that's not so bad, just tell the navy you're researching ways to lower the viscosity of water and watch the grant money roll in. Of course the experimental apparatus to generate mass quantities of neutrinos on demand doesn't fit in a torpedo warhead very well, but...

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    10. Re:Variable rate of decay? by volsung · · Score: 1

      Just FYI: Nearly all physics articles from the last 15 years are posted in "preprint" form on the arXiv before submission to a journal. The arXiv is completely free, and is where nearly all physicists read papers from, rather than from the journals themselves.

      Just Google the title of the paper you are interested in, and you usually find the preprint version:

      http://arxiv.org/abs/1205.0205

    11. Re:Variable rate of decay? by rrohbeck · · Score: 1

      You're overcorrecting.
      Phenomenon, singular
      Phenomena, plural

    12. Re:Variable rate of decay? by Anonymous Coward · · Score: 0

      Of course the experimental apparatus to generate mass quantities of neutrinos on demand doesn't fit in a torpedo warhead very well, but...

      ...it does fit pretty nicely inside a submarine, so if you can have use neutrino-catalyzed decay to make a small, compact, neutrino detector out of some chlorine, the Navy would also be pretty interested. (Only one problem, I'll bet the local neutrino flux due to the aforementioned sub-mounted neutrino source more than swamps out the solar neutrino flux, and really swamps out the neutrino flux from the other subs...)

    13. Re:Variable rate of decay? by The_Laughing_God · · Score: 1

      RTFA, which was a study done in Radon, and cited confirming studies with other isotopes.

      That said, I personally think it is AT LEAST as likely that both solar processes and terrestrial decay rates are being influenced by some outside factor. This is supported by other decay rate correlations with e.g. the Earth position in it orbit relative to the galactic center.

  7. Dating methods by wisnoskij · · Score: 2

    I always thought these were fairly constant, does this theory mess up any of our current Radiometric dating (and other similar) methods?
    Sure a few solar flares might not do much effect, but when we are talking hundreds of millions of years ago the sun might of been in a totally different state that caused different decays over long periods of time, than we previously thought.

    --
    Troll is not a replacement for I disagree.
    1. Re:Dating methods by lannocc · · Score: 1

      does this theory mess up any of our current Radiometric dating (and other similar) methods?

      I was wondering the same thing. Another reason for the Creationists to argue that the carbon-dating is all wrong and the Earth is young.

    2. Re:Dating methods by arse+maker · · Score: 1

      We have many different radiometric forms of dating that all agree well.

      It would require a perverse alteration to them all to keep agreeing with each other after all this time.

      Thats why we are so confident in the age of the earth. http://en.wikipedia.org/wiki/Age_of_the_Earth

    3. Re:Dating methods by VortexCortex · · Score: 1

      I always thought these were fairly constant, does this theory mess up any of our current Radiometric dating (and other similar) methods?

      Well, No: Considering the predictability is consistently of random accuracy in any form of dating, be it Radiometric, Electronic, Speed, Blind, or chance reliant encounters. They might have a statistically significant effect on dating if the solar flares dramatically affect hormone or pheromone production.

      In my experience the Moon is a much better indicator of whether dating will be "successful"...

    4. Re:Dating methods by sgunhouse · · Score: 1

      Depends on if you assume solar activity has been relatively consistent over time. If solar activity has decreased or increased substantially over time, then radioactive dating could be wrong. If solar activity has been relatively stable over the last million years, then dates within that period are probably pretty good. Even a mathematician can see that.

    5. Re:Dating methods by wisnoskij · · Score: 1

      Keyword: Radiometric.
      If some external force changes the rate of decay of all radioactive material, like this summery says, then they all very well might agree and still be off.

      --
      Troll is not a replacement for I disagree.
    6. Re:Dating methods by arse+maker · · Score: 1

      If some atoms decay at rate X and others at rate Y but have all been altered by different amounts by a constant influence so they happen to give the same values. That is what I consider perverse.

      Either they are reliable because of the multiple multiple lines of agreement or there is a god playing tricks with us. The other option is terribly bad luck but the odds of that happening are so tiny its not worth considering.

    7. Re:Dating methods by Anonymous Coward · · Score: 0

      Get the scales right. It'd be like arguing that just because the taxi meter is 5% off, the trip from Paris to Moscow should cost a 100 Euros.

  8. wasn't this debunked? by tantrum · · Score: 2

    I recall reading about this here on slashdot several years ago (guessing '96), and thought that it was disproved not lang after. I might be wrong though

    1. Re:wasn't this debunked? by tantrum · · Score: 1

      I recall reading about this here on slashdot several years ago (guessing '96), and thought that it was disproved not lang after. I might be wrong though

      :%s/96/06/gc

    2. Re:wasn't this debunked? by Anonymous Coward · · Score: 3, Funny

      > :%s/96/06/gc

      Bah. You don't need to touch the whole file. You don't need to replace the 6 with a 6. There's no case to be concerned with, and there's no point to confirm a single change.

      0f9r0. Or just f9r0 if your cursor is before the 9, or F9r0 if it's behind it. Don't over complicate things. And if you're anal enough to post a regex invocation specific to an application, post the fastest way to make the change instead.

    3. Re:wasn't this debunked? by rrohbeck · · Score: 1

      Bah. Real men load the message into a debugger and overwrite that one byte.
      No need for something as complicated as an editor.

    4. Re:wasn't this debunked? by ispeters · · Score: 3, Funny

      Are you kidding me? There's only two bits different between 0 and 9. Why the hell would you waste time overwriting the entire byte?

    5. Re:wasn't this debunked? by Anonymous Coward · · Score: 0

      Exactly. And you don't load the message into a debugger. You freeze the clock, enter the message buffer's address on the front panel, load it, flip the two bits off, store, and resume the clock. I mean, like, DUH, man. Or you freeze the clock, dump core on punched tape, cover up appropriate two holes, reload the core, and resume clock. Double DUH.

  9. Way to early to make assumptions by reginaldo · · Score: 1

    So has there been any research done outside of this JH Jenkins guy and his crew at Purdue? Has this hypothesis been tested and proven elsewhere in this world? I can't find any other publishers: http://tinyurl.com/d4bjfbx (A link to a search of published papers using "Solar Radioactive Decay" as the search criteria. All on-topic papers come from JH Jenkins and crew)

    1. Re:Way to early to make assumptions by vlm · · Score: 1

      So has there been any research done outside of this JH Jenkins guy and his crew at Purdue? Has this hypothesis been tested and proven elsewhere in this world? I can't find any other publishers...

      http://arxiv.org/abs/0810.3265

      (no this isn't an arxiv equivalent of a rickroll on my honor as a 5 digit /. uid. However, if someone can find the arxiv equivalent of a rickroll I'll be indebted to them.)

      Aside from this individual example, obviously see the references at the end of the paper.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    2. Re:Way to early to make assumptions by vlm · · Score: 1

      oh and another good one.

      http://arxiv.org/abs/1205.7015

      Once again, its a cool paper all by itself, and slightly (only slightly) off your topic, but the real gold mine, for you, will probably be the reference list at the end of the paper.

      Its an interesting topic because its fun to think of how to build the experimental apparatus, possible sources of error and how to work around... Its almost as much fun as that "anomalous gravitational force" that ended up not existing. I'm just barely not old enough to have lived thru the polywater era which probably would have been equally entertaining.

      --
      "Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
    3. Re:Way to early to make assumptions by ceoyoyo · · Score: 1

      One of the references from that preprint is particularly enlightening:

      http://www.sciencedirect.com/science/article/pii/S0969804397100823

      They measured radon decay (which dispenses with the explanation that not all isotopes are the same) over twenty years. They saw a seasonal variation, just like Jenkins does. But when they measured the ratio of radon decay with europium decay, the variation went away. It turned out their detector also had a seasonal variation.

      The paper cited in the summary shows they do have a seasonal variation in line voltage to their experimental apparatus. They hand wave that away, but if there's that much variation in something as simple as the power supply to their instruments, what else might they not be controlling?

    4. Re:Way to early to make assumptions by ceoyoyo · · Score: 1

      PS - the arxiv equivalent of a rickroll:

      http://arxiv.org/pdf/0707.1618.pdf

    5. Re:Way to early to make assumptions by Anonymous Coward · · Score: 0

      That's like experimental technique fail 101. They can reasonably easily regulate their voltage to within +/-10ppm over a year's time scale. Or talk to some people on volt-nuts group and this could be done down to +/-2ppm a year.

  10. Makes sense. by Anonymous Coward · · Score: 1

    Makes total sense. The flare will appear AFTER a period of high activity, because photons and matter are damn slow (in a high density medium such as the Sun, neutrinos will be orders of magnitude faster. Note that photons under those circunstances will be significantly slowed). During that period, we will have more antineutrinos. Those extra antineutrinos may collide with neutrons (turning into electrons, and turning the neutrons into protons), or just transfer energy to protons/neutrons/electrons. This extra energy is released as a gamma.

    1. Re:Makes sense. by arse+maker · · Score: 1

      There is almost no cross section for a neutrino (or antineutrino) and a neutron to interact. For that matter any particle.

      They only interact via the weak force which is orders of magnitude smaller than the electromagnetic. http://en.wikipedia.org/wiki/Weak_interaction

    2. Re:Makes sense. by Anonymous Coward · · Score: 1

      Yes, but the fluxes are so huge that you get quite a few interactions over a large enough volume. Search for SNO, KamiokaNDE/SuperKamiokaNDE, KamLAND, etc.

      If the cross section wasn't enough for them to be detectable, they would never have been detected. They have been detected, so........

  11. I call shenanigans by PvtVoid · · Score: 1, Informative

    This has to be either a systematic or a fluke. The only thing that could conceivably have an influence on nuclear decay rates is the neutrino flux, which would not show the diurnal variations that they claim, and which furthermore would be completely uncorrelated with solar flares, since neutrinos propagate at the speed of light from the solar core through the envelope, while thermal effects take millenia to propagate.

    The paper on the effect is in a peer-reviewed journal, and the authors do not appear to be crackpots, but I notice that the abstract at least does not quote a confidence level for the result. And using an effect this speculative to base a solar weather prediction technology on, however, is pure idiocy.

    1. Re:I call shenanigans by ceoyoyo · · Score: 2

      The paper has zero statistics, and zero error bars. I'm not sure how it got published in a peer reviewed journal.

    2. Re:I call shenanigans by PJ6 · · Score: 1

      This has to be either a systematic or a fluke. The only thing that could conceivably have an influence on nuclear decay rates is the neutrino flux, which would not show the diurnal variations that they claim, and which furthermore would be completely uncorrelated with solar flares, since neutrinos propagate at the speed of light from the solar core through the envelope, while thermal effects take millenia to propagate.

      Flares are driven by magnetic, not thermal forces.

  12. Asimov got there first? by Kid+Zero · · Score: 1

    Did someone take his research into Thimotimoline seriously? :D

    1. Re:Asimov got there first? by Remus+Shepherd · · Score: 1

      No, but judging by how often his yet-to-be-published article has been cited, they will.

      --
      Genocide Man -- Life is funny. Death is funnier. Mass murder can be hilarious.
  13. It's about time by Okian+Warrior · · Score: 1

    I've been following this topic for a couple of years. Variation of radioactive decay has been noticed and reported by Jere Jenkins et al before.

    In all cases, the results have been panned by the physics community as unlikely, not fitting with the current model, or failing to match with other measurements. The overall conclusion in each of these papers has been: "it can't be correct because it doesn't fit within our model".

    The theory was disproved by analysis, not disproved by abundance of data.

    Measuring radioactive decay is simple, and it would have taken an undergrad about a week to set up a logging system sensitive enough to gather evidence which would corroborate or disprove the theory.

    No one thought to do this, Jere and friends were dismissed as cranks and crackpots.

    I'm glad to see this finally reach the light of day. None of the criticisms of his work was based on evidence, and dismissing evidence is not real science.

    1. Re:It's about time by arse+maker · · Score: 3, Insightful

      Non replicable data also not really science.

      There is no lack of people who would look into this, and to be sure many top people have. There have been many people coming forward since to show data that doesn't exhibit this pattern. Thats a huge problem.

      The burden of proof is on the claimant and its far from proven.

    2. Re:It's about time by ceoyoyo · · Score: 2

      You haven't been following it very well then. There are other datasets that don't show the variation Jenkins et al see. Plus their habit of writing papers that don't include any statistics OR error bars means their hypothesis (it's definitely not a theory - they don't offer any explanatory or predictive ability at all) is poorly supported in the first place.

      The overall conclusion is "extraordinary claims, particularly those in opposition to both theory AND many other experiments, require extraordinary evidence. Or at least ordinary evidence."

      Not to mention that reliably detecting seasonal variation requires several years.

    3. Re:It's about time by Anonymous Coward · · Score: 0

      Not at all simple to do. Measurement of radioactive decay is a very difficult and high precision experiment involving highly purified radioactive isotopes, extremely sensitive and tetchy detector systems that must be appropriate for the type of radioactive decay that you wish to measure), and highly sensitive, low noise, and fast detection electronics coupled to whatever detectors you happen to be using. For example to measure gamma rays of a certain energy, sodium iodide scintillation crystals coupled with photomultiplier tubes will work well- but have numerous experimental details like geometric angle, loss in scintillator, conversion ratio, coupling to PMT, sensitivity to water vapor, vulnerability to "dead time" when radioactive events occur too close to one another... These are just a few of the challenges involved with sodium iodide detector systems, which only covers a small subset of radioactive events you may wish to detect -with alpha and low energy beta particles, the foil that protects the NaI from water will prevent detection by absorbing the particles. As an example of the chemistry challenges: How pure is your sample? How will you separate one isotope from another that weighs 1 neutron more or less? And gosh, isn't it decaying as you do your purification?

      With all of these problems, its no wonder that the accuracy of radioactive decay rate measurements is pretty crappy, such that textbooks will disagree after just a few significant digits.
      - AW

    4. Re:It's about time by Anonymous Coward · · Score: 0

      In all cases, the results have been panned by the physics community as unlikely, not fitting with the current model, or failing to match with other measurements. The overall conclusion in each of these papers has been: "it can't be correct because it doesn't fit within our model".

      You story isn't self consistent. They are crackpots, because no one can repeat the experiment. If you honestly believe this is true, why not spend $1K and try? Maybe they'll share the Nobel Prize with you. Ha!

    5. Re:It's about time by Anonymous Coward · · Score: 1

      We did this at UC Berkeley and trivially proved this variation does not occur.

      Evidence against correlations between nuclear decay rates and Earth-Sun distance. E. B. Norman, E. Browne, H. A. Shugart, T. H. Joshi, R. B. Firestone. Astroparticle Phys. 31 (2009) 135

      There has also been a follow-up study compared to solar activity also showing no correlation. It was presented at SORMA this year and will be published later this year.

  14. In other news... by Antipater · · Score: 3, Funny

    Researchers at Purdue are busy creating early-warning earthquake detectors based around when their dogs all start acting weird.

    --
    Everything is better with chainsaws.
    1. Re:In other news... by michelcolman · · Score: 1

      And they're theorizing that the dogs are somehow causing the earthquake

  15. Re:This is like by Anonymous Coward · · Score: 2, Insightful

    Well, let's see. Both radioactive decay and neutrinos interact through the weak nuclear force, so to suggest that the scientific plausibility is "insane" is, well...

  16. Re:This is like by Anonymous Coward · · Score: 0

    Agreed. It seems more likely that neutrinos are affecting the measuring equipment rather than radioactivity!

  17. I call politics by Okian+Warrior · · Score: 5, Insightful

    This has to be either a systematic or a fluke. The only thing that could conceivably have an influence on nuclear decay rates is...

    Okay, wait.

    This guy has evidence which your model doesn't account for. You're saying that the evidence can't be right because it isn't accounted for by your model?

    That's not science, that's politics.

    If he's got evidence, either counter with your own evidence or show that his evidence is fabricated.

    Try actually being a scientist, instead of pretending to act like one.

    1. Re:I call politics by Velex · · Score: 1

      Since I can't mod this discussion anymore having made a similar comment myself to another internet tough guy, will somebody please mod the parent up?

      You're spot on. It's called science. It works best when somebody turns out to be wrong (or at least not quite correct). Whoever is modding up these internet tough guys needs to read some Sagan or something and get a clue.

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    2. Re:I call politics by PvtVoid · · Score: 3, Insightful

      Okay, wait.

      This guy has evidence which your model doesn't account for. You're saying that the evidence can't be right because it isn't accounted for by your model?

      That's not science, that's politics.

      If he's got evidence, either counter with your own evidence or show that his evidence is fabricated.

      Try actually being a scientist, instead of pretending to act like one.

      I'm saying I am very skeptical of the "evidence" because it makes no fucking sense at all. Anybody can find statistically significant, completely spurious correlations when given a large-enough mass of data. Would you also suggest that I take these guys seriously?

      I never said that the Purdue people shouldn't publish their result. Their paper simply notes a correlation. They don't claim to know why there is a correlation, and there could be many explanations. That's science. The most likely explanation is that the effect is a systematic. I say this because I know many other well-verified facts about how the world works, and this purported correlation is in conflict with all of these things. That's also science. Uncritically accepting one piece of data and therefore throwing out a century of scientific knowledge is not being a scientist. It's being a nutjob.

    3. Re:I call politics by arse+maker · · Score: 3, Informative

      There are many nonsupporting papers for this.

      http://arxiv.org/abs/1006.5071 (there are many more but you can find yourself if you are interested)

      If it was replicated easily then it would be a cause for a rethink but its not. It would also require new physics to explain and that by itself requires the strongest rigor before being accepted.

    4. Re:I call politics by ceoyoyo · · Score: 2

      He doesn't have evidence, or at least he hasn't presented it. His papers don't have any stats, or even error bars.

    5. Re:I call politics by schlachter · · Score: 1

      hey, relax, this is slashdot... :P

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    6. Re:I call politics by Anonymous Coward · · Score: 1

      So SNO, Kamiokande, etc are massive detectors based on inverse beta decay et al to observe solar neutrino flux. They do measure diurnal variation, they do not observe this.

      Radon makes an alpha decay (emits a Helium nucleus). This is strong force and unlikely to be affected by neutrinos that interact only through weak force (and presumably gravity, though probably never measured). So they have no model, and their measurements are in conflict with several major international collaborations.

      They are just wrong.

      ps: neutrinos don't go faster than speed of light either guys.

  18. Re:This is like by Velex · · Score: 5, Insightful

    Holy cow. Only on Slashdot can some internet tough guy say "I don't care what people who are actually studying this think. I know better because I can throw words like 'neutrino' and 'plausibility' around." And then get modded up to +5 insightful.

    I'm not even going to waste a mod point making this a +4 instead. What's the point? Good grief.

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  19. Re:This is like by kav2k · · Score: 3, Insightful

    If everyone has that mindset to avoid testing "batshit crazy" theories, we will not produce new ones. Physics is not an area where truth is final..

    You want repeatable experiments. Those guys want to try them - and you're calling that insane. Maybe that will lead to discovery of yet another, different explanation and mechanism that was attributable to neutrinos only on first estimation.

    A good definition of "scientific" is "refutable". This one certainly qualifies. So let them try and not drown them in skepticism right away.

  20. Re:This is like by dmgxmichael · · Score: 2

    saying we can get anti gravity devices to work because it was on star trek.

    The scientific plausibility of nuclear decay to vary because of neutrinos is one level below insane.

    The standard model predicts nuclear decay with extreme precision, so until someone comes up with a repeatable compelling theory and or experiment that is consistent with the SM and this sort of effect on decay I wouldn't give this much thought.

    You've got that backwards. If we get observations that prove nuclear decay is variable then SM must perforce be revised or thrown out the window entirely.

  21. Variable decay rates == broken radioactive carbon? by THE_WELL_HUNG_OYSTER · · Score: 1

    If decay rates are variable, how does this affect radioactive carbon dating methods? Are all dates derived from this method now suspect?

  22. It's about science by Okian+Warrior · · Score: 1

    There is no lack of people who would look into this, and to be sure many top people have...

    And yet, not one of the people who looked into it actually took the time to collect evidence.

    (Can you post a link to a paper which disproves this based on collected data?)

    Interesting how calling a data set "non replicable" is seen as good science, while replicating the data (which is what the current paper purports to do) is "not really good science".

    1. Re:It's about science by Bert+the+Turtle · · Score: 2
      Indeed I can.

      http://www.sciencedirect.com/science/article/pii/S0370269312002341

      from the article itself.

      It looks very much like an experimental error. The fact they didn't use a multichannel analyser to look at the energy of the signal makes it very hard to exclude background signal (like from the sun, a massive radiation source).

      They didn't even use much of a lead shield - 5mm, which is hardly anything for higher energy photons.

  23. Re:This is like by arse+maker · · Score: 1

    You are right. But I think you are ignoring the "prove" part. There is no proof. There is some studies but many contradicting studies.

    If you want to overturn perhaps the successful theory that exists with poorly reproducible data, good luck. I agree it cant be dismissed without investigation but surely it is the theory that needs to do the pushing.

  24. Re:This is like by arse+maker · · Score: 1

    You make it sound like my opinion. Not the weight of scientific opinion.

    The study of the natural world isn't decided by the best yo-mamma joke.

  25. They are suggesting this might have ... by gatesstillborg · · Score: 1

    ...predictive potential, that is, the rates of radioactive material decay changes before the solar flare occurs? That sounds completely outlandish!

    1. Re:They are suggesting this might have ... by arse+maker · · Score: 1

      Before the heavier particles or lighter but more interacting particles (photons) get to us.

    2. Re:They are suggesting this might have ... by arse+maker · · Score: 1

      Surface photons will still beat anything but I think its the neutrons and protons that are the bigger risk.

    3. Re:They are suggesting this might have ... by gatesstillborg · · Score: 1

      I see. thx.

  26. But, but, ... by AliasMarlowe · · Score: 1

    I suggest pulling random numbers out of uranus.

    But, but, ... all I get that way is some brownian numbers!

    --
    Those who can make you believe absurdities can make you commit atrocities. - Voltaire
  27. Smell test by WaffleMonster · · Score: 1

    I don't understand it is not like we can't produce neutrinos in large quantities on demand.

    Wouldn't we notice changes in decay rates by placing the same objects next to a reactor and observing a change? There must be a million different ways to investigate these claims.

    For something seemingly this extraordinary the silence and general lack of interest is deafening.

    1. Re:Smell test by arse+maker · · Score: 3, Informative

      Experiments have been done. They don't match these findings. (http://www.nist.gov/mml/analytical/14c_091410.cfm)

  28. Correlation is not causation by scorp1us · · Score: 1

    What if the nuclear instability of both bodies is being affected by the same thing. That is to say, the underlying fabric of space-time maybe altered and it takes affect immediately* at both bodies but takes 39 hours for the sun to develop a solar flare. You'd still get the same result, but you no longer need neutrino output to be the causation mechanism. We often forget the sun moves too. Or other things like gamma rays wash over our solar system.

    If we could only place a detector somewhere else int he solar system and see which sees the change of decay rate first...

    *(or within 8 light-minutes)

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    1. Re:Correlation is not causation by Anonymous Coward · · Score: 0

      Perhaps they've built the first dark matter detector? As the solar system plows through waves of "mystery stuff" Chlorine 36 and solar plasma ring out the news.

  29. Time Contraction/Dilation by Anonymous Coward · · Score: 0

    What happens to "counts/second" in the situation where someone travels at high speed? If the relative passage of time is affected by speed, then wouldn't the number of counts be required to change in order to match the contraction/dilation of time?

  30. Thank you! That's relevant by Okian+Warrior · · Score: 2

    Indeed I can.

    http://www.sciencedirect.com/science/article/pii/S0370269312002341...

    Thank you! That's an excellent counter-argument.

    A quick look at the linked paper shows that they have covered all the bases - temperature, pressure, background radiation, radon, and so on. Their analysis appears to be spot-on, but at the same time I hope that they continue the experiment in order to really pound the last nail in the coffin.

    From that same article:

    Some of the measurements and analysis conrm the existence of oscillations [6, 7] whereas others contradict this hypothesis [8, 9, 10].

    Note that this paper is fairly recent (published at the end of March) and is only one such paper which notes the caveats mentioned in the quote above. If we are keeping score, then there are 2 papers which see correlations and 4 which do not.

    I am now cautiously optimistic about the [lack of] results, but in light of the recent findings by Jere Jenkins et al and the fact that other studies appear to find similar correlations, it might be good to actually identify the source of systemic error.

    If for no better reason than to document the source of the problem to allow for better measurements in the future.

  31. "A US patent has been filed to protect the idea." by trout007 · · Score: 1

    This line actually made me laugh out loud.

    The US patent was filed to use the threat of force to prevent others from using their own liberty and property from using this idea. The idea is not protected by the patent.

    --
    I love Jesus, except for his foreign policy.
  32. Spooky action at a distance by Anonymous Coward · · Score: 0

    What if the nuclear instability of both bodies is being affected by the same thing.

    Or... what if nuclear happenings in one place are affecting nuclear happenings in another place 93 million miles away?
    And what if there is no propagation delay, that is the phenomenon occurs exactly simultaneously in both places?

    Fascinating questions, indeed.

  33. The Cat by wallsg · · Score: 1

    So, is Schrödinger's cat safer during a flare?

    1. Re:The Cat by geekoid · · Score: 1

      Maybe.

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  34. How do they know it's from the sun? by Anonymous Coward · · Score: 0

    Even if they have data that is correlated with variations in the sun's flux,
        what's to say that it is not some outside influence affecting both the sun and things on earth.

    (It could be directional to account for a yearly variation when the sun gets between us and the source.)

    I'd say we need a bunch more data and some thinking before this one gets added to our understanding of how things work.
    Should be interesting to watch.

  35. Re:This is like by steelfood · · Score: 1

    Not that this is necessarily the case right now, but there are other people working in the same field who regularly post comments, and less often, moderate. And quite often, TFA is a crock of bull slashvertisement or self promotion.

    It happens. The system's not perfect.

    --
    "If a nation expects to be ignorant and free in a state of civilization, it expects what never was and never will be."
  36. Radio carbon phosporus and uranium isotope decay by Anonymous Coward · · Score: 0

    What are the implication for radio isotope dating?

  37. AN Hypothosis by geekoid · · Score: 1

    that isn't holding up well. I would be surprised if it pans out.
    It would be an interesting surprise, but there are a lot of accurate observations they would need to account for.

    --
    The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  38. Re:Variable decay rates == broken radioactive carb by geekoid · · Score: 1

    If it's true, then not really. It's still an average long term. If radio dating predicted down to the day(it doesn't) it might be off by a day or two.

    Not that certain organization won't try to use their ignorance to paint it that way.

    --
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  39. Re:This is like by Anonymous Coward · · Score: 1

    The Standard Model has made some incredibly accurate predictions as far as QED does with electron transitions in simple atoms, and with the interaction of certain pairs off particles. When it comes to nuclear physics, QCD is much more difficult, and not anywhere near as precise as the previous examples. That is hard enough for simple interactions, with larger atoms consisting of many nucleons, nuclear physics/SM is still rough work when it comes to detailed calculations of decays. Additionally, one of the week points of the SM is some of the properties and interactions involving neutrinos.

    So, no, there are not super precise calculations via the SM describing nuclear decay. It is an active area of research that still has a long ways to go, and there is room for things to fall through the gaps even without breaking the Standard Model.

  40. Re:This is like by Anonymous Coward · · Score: 0

    As pointed out below, it is not like he is even saying anything based on the standard model... He might be confusing other predictions about atomic physicswith nuclear decay, unless there has been some amazing advances in the last year or two. Without some links to such work, it would seem the reference to the standard model is gratuitous.

  41. Pentium 90 by Anonymous Coward · · Score: 0

    GP is referring to the old FDIV bug

    1. Re:Pentium 90 by rwise2112 · · Score: 1

      GP is referring to the old FDIV bug

      Yeah! I thought everyone would get that!

      --

      "For every expert, there is an equal and opposite expert"
  42. Source: arXiv 1205.0205 by Anonymous Coward · · Score: 0
  43. tl;dr by Anonymous Coward · · Score: 0

    Something that doesn't interact with anything is changing something that can't be changed.

    Science. Where would we be without it?

  44. No, no by Anonymous Coward · · Score: 0

    Nobody can predict flares without an impressive secret laboratory with a stargate access. It's the only way to reliably manage the process of time travel and acquire a satellite phone for that call to the president.

  45. Just wrong by PiMuNu · · Score: 2

    This is just wrong.

    There are many thousands of physicists who study neutrino flux from the sun every day. They typically use several 1000 tonnes detectors looking for interaction such as inverse beta decay and they see ~ 1 neutrino interaction per day. Try googling for Super Kamiokande, Sudbury Neutrino Observatory, ...

    The solar neutrino flux is generated from nuclear reactions in the core of the sun. Solar flares are generated by magnetic effects at the sun's surface. These two phenomena are almost completely unrelated.

    1. Re:Just wrong by nherm · · Score: 1

      I could not find any instance of the word 'flare' in the paper that I downloaded from the abstract link in the summary.

  46. Degree of variance? by CAIMLAS · · Score: 1

    How much variance is there in the rate of decay? This is a bit disconcerting on it's face, at least as it relates to nuclear power. Would we have to be concerned about this directly impacting nuclear power facilities, in the event of a very large CME? Or at that point, would we be more concerned about cooking when we go outdoors?

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