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User: Muhammar

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  1. Water evaporators are bad on Keeping Your Apartment Cool in the Summer Time? · · Score: 2, Funny

    Humid heat is unbearable - and that is the kind of condition when evaporator fails.

    Evaporate pure grain alcohol! At $35 a galon, it is not too expensive. (Albertson's vodka is even cheaper than Everclear). Alcohol will prevent growth of mold, give out a nice refreshing smell and make your hot appartment very enjoyable. Biodegradable - and will not hurt ozonosphere.

    If you are willing to invest, buy a big dewar. Liquid nitrogen in bulk volumes is cheaper than milk. Wach out for a frozen mailman on doorsteps.

  2. I don't think that there is life out there too on Is SARS From Mars? · · Score: 1

    I think the aliens return from work, watch telenovels, pay the bills in their mail, wash the dishes and go to bed.

  3. Re:somewhat OT isotope question on Bismuth No Longer the Heaviest Stable Element · · Score: 1

    It is slightly incorrect what you said. It is not about different shapes and probably also not about non-covalent, hydrogen bonds. (Acidic H+ get exchanged quickly).

    The problem is that some reaction have large "kinetic isotope effect", which usualy means - in case of deuterium-exchanged molecules - that heavy isotope carbon-deuterium bonds are metabolised at slower rate. Enzymatic reaction do this alot. Oxygen and carbon are other examples - although the effect is not as large as with hydrogen.

    Living organisms have tendency to take up disproportionaly more of lighter isotopes. This can be used to determine, if - for example - limestone sediment rocks or carbon particles had a biotic origin.

  4. Re:It's dangerous? KILL IT!!! on Bismuth No Longer the Heaviest Stable Element · · Score: 1

    Also, do not drink orange juice or eat bananas: these foods are rich in potassium. Naturaly occuring potassium has a lot (several %) of radioisotope. Its beta radiation is soft and decay slow, but the generated heat is enough to keep the Earth molten inside.

    So, fruits are bad - fruits are radioactive. I knew it instinctively since my childhood.

  5. Re:Why this won't work so well.. on Mars Rover: Tumbleweed Models · · Score: 1

    Air is thin on Mars, but the wind-speed is very high. There are sandstorms, dust tornadoes ("dust devils") going few thousand feet high into atmosphere and even sand dunes. (The dune shapes are bit different from their earth counterparts.) It shows that light objects can be definitely moved around.

    Maybe it should become a russian project: Tumbleweed in native to russian/ukraina stepes and was brought to America incidentaly, with settlers. The original name of Tumbleweed is "pere-ko-tim-poli-a" = "tumble-over-fields"

  6. Re:More probable theory on Is SARS From Mars? · · Score: 1

    But you failed to address the source of high velocity of these particles in your theory - they were most likely propelled in Earth direction by impuls transferred from beats of Foucault pendulum which was aligned with the plane of the initial singularity.

  7. Re:Idolators on Buddhists Really Are Happier · · Score: 1

    And you will sizzle too - unless you find your way to the Lord.

    Please, read Chicktracts: http://www.elsewhere.org/chicktracts.html

    It is not too late. Even if you have only five minutes, read "This was your life" http://www.chick.com/reading/tracts/0001/0001_01.a sp

    and, especialy nice: "Where's rabbi Waxman?" http://www.chick.com/reading/tracts/0014/0014_01.a sp

    Clean up your acts - before it is not too late!

  8. Hope they will pour some oil into Baltic sea on Control the Rain - Cloud Seeding · · Score: 2, Funny

    ...to calm the waves. And prevent the earthquake by releasing tectonic tensions with few megatonns detonated underground. They should also facade-lift the buildings, clean the rooftops, paint the grass greener in parks and re-locate all unsightly individuals out of city.

  9. Idolators on Buddhists Really Are Happier · · Score: 1

    They think they are happy now - but they all will burn in hell. God loves you - or else!

  10. One kind of homebrewing was not mentioned on Is the Seeking of Lost Skills/Arts a Hacking Analog? · · Score: 1

    ...not that authorities would encourage you to try it. But it has much common with hacking - if you consider your brain a computer.

    [Of course, I am talking about making your own russian-style home yogurt!]

  11. What kind of nutrients on World's Largest Flower · · Score: 3, Interesting

    I cannot imagine what kind of nutrients in soil can support such a fast-growing monstrosity. Do they have to feed it live sheep?

  12. Re:Hydrogen balooney on Microbes Pass Valuable Gas · · Score: 1

    How did I arrive to this number?

    By decimal error.

    I do not like the hydrogen energy hype and the proposal to use fermentation tank to power laptop sent me balistic.
    Sorry for the mistake. The useful output would be around 2kW, 2,4kW is just the nominal value.

  13. Re:I hereby volunteer to be a test subject... on 'Fantastic Voyage' One Step Closer · · Score: 1

    Uff; swallowing a camera sounds exciting after your detailed narration. And you could get a home video too - kind of "cave exploration" documentary - wonderful date conversation starter: "Say, do you wanna to see some realy insightfull footage of me?"

    For few days after the procedure, you would have to listen hard - to hear it clink. Careless flushing - and money that would buy a new BMW goes down the toilet.

  14. Hydrogen balooney on Microbes Pass Valuable Gas · · Score: 4, Interesting

    "a 53-cubic-foot reaction chamber would provide enough hydrogen to run a 200-kilowatt fuel cell and supply energy for about 20 houses"

    1. I do not believe that they can produce that much hydrogen from this much volume - maybe she is talking about the peak output her 15 liter tank, multiplied by the factor to get to 200kW "to power 20 houses".

    2. 10kW per house is actualy very little - this is another example of "data massage". Average hair dryer takes about 2kW, so does ironing your shirt or vacuum your room. I am not talkig about things like electric laundry dryer or A/C. I *lived* in place which had 20Amp circuit brakers (which gives 20kW at 120V), and the circuit brakers were out all the time. We had an electric heater, but neither A/C nor laundry in the apartment.

    3.Running fermentor is not the easiest thing to do - you have to keep the microbes happy - the output can vary, there can be problems with contamination (some mold gets in which wipes out the bacterias over time) etc. And they smell bad.

    4. Using a fermentation tank to power laptop is pure unmitigated balooney - here the power source can be more expensive than with household source. With laptop, the premium is on weight+size. Much more compact and fairly affordable source of hydrogen for laptops can be sodium borohydride: this is a common industrial chemical, water-stable and 40g of the stuff + 40g of water produces 8g of hydrogen, which is one of the best weight ratios with nonelectrolytic sources of H2.

    5. Enviro-technologies development: most of the time it's a confederacy of shabby science, political pressure and populism. The surest way to protect enviroment is to find a different job for pop-science enviromentalist - preferably in gender studies or postmodernist deconstruction university departments.

  15. "Hybrid Robot Uses Rat Brain" on Hybrid Robot Uses Rat Brain · · Score: 1

    No distatesful GWB jokes here, please - he got almost half of the votes.

  16. Re:I'm going to get flamed, but on Hybrid Robot Uses Rat Brain · · Score: 4, Funny

    As a scientist, I regret that you are not my animal.

  17. Re:Irradiating nukes on Destroying Nuclear Weapons with High-Energy Neutrinos · · Score: 1

    Yes, you are completely right. The original main high explosive used in 1945 (HMX) is rather sensitive and the chemical explosive assemblies in several nukes actualy exploded in fire or by impact:

    http://www.brook.edu/dybdocroot/fp/projects/nucw co st/box7-3.htm

    But now they have explosives like 1,3,5-triaminotrinitrobenzene or 3,5-aminonitrotriazole. Those are incredibly insensitive - they even do not burn in fire too much and you can hammer them on anvil to oblivion and they will not detonate.

  18. Re:Sounds like Feynman's texbooks on Books on Quantum Mechanics? · · Score: 2, Informative

    Yeah, you are right. And in "Feynman Lectures", quantum physics is dealt with mostly in volume 3 - some people loved it completely and said it was the best part of the series and some complained that it was not as math-laden as some other textbooks (Cohen-Tannoudji).

    [And unlike with the other textbooks, you can hear the guy on audiotapes from live lectures too, with suplemmental sylabus.]

  19. Sounds like Feynman's texbooks on Books on Quantum Mechanics? · · Score: 5, Informative

    Try Feynman Lectures, Feynman "Six Easy Pieces" and "Six Not-So-Easy Pieces". Most of the physics has not aged from the time the books was written, - QED, relativistic gravitation and the Standard model were almost complete by then. And he had unusual gift for readability and ingenuous practical examples. [I think he won some teaching awards for his books, also.]

    That is what I heard - but try to ask some physicist next time :)

    Here is a nifty interview with Feynman (1979):
    http://www.omnimag.com/archives/interview s/feynman .html

  20. Re:Gee on Falling to Earth's Core in a Big Blob of Iron · · Score: 1

    Fugettabout iron, this will be another good use for Depleted Uranium. DU penetrator will sink even better than the Earth and Planetary WU authority.

    Oh, and using not-so depleted uranium, we could start a chain reaction in the stuff and the liberated incidental antineutrino pulses could be picked up by the existing neutrino detectores, as they have been doing with nuclear reactors already. No need for the proposed gravitational dectector signalling. All we need for this is the entire mass of Iraq uranium (and teaching the probe how to use the Morse code).

  21. Re:I love this experiment on Primordial Soup: Interview with Stanley Miller · · Score: 1

    How you can explain the origin of God: Hard prayers makes you hear his voice in your head.

    How He created the universe: We did not realy care at the time -- we hired him as a contractor.

  22. Re:I tried this experiment in high school...sort o on Primordial Soup: Interview with Stanley Miller · · Score: 1

    This is not necessarily so.

    1. For fotolysis of ammonia, one needs a hellotof UV - very strong source. Not likely to happen.
    2. Ozone is not the only UV absorber known to man - the most common kind is complex organic molecules. We do not have much of complex organic compounds in air nowadays (except for Mexico City, Peking, LA and Fresno valley) but those aerosols or volatiles could have shielded UV in the early days of Earth.

  23. Re:Another use on Destroying Nuclear Weapons with High-Energy Neutrinos · · Score: 1

    Question for Radio Jerevan:
    "So could this be used to destroy a nuclear power station?"

    Answer:
    It could, but a pitchfork is more practical for the purpose.

  24. Irradiating nukes on Destroying Nuclear Weapons with High-Energy Neutrinos · · Score: 5, Informative

    Shining a strong neutron source (in this case generated by neutrino beam passing through earth) on fission material would generate radioactivity and heat effect. The radioactivity would be much higher than the heat, so people around would see blue light and start dying right away.

    Bombs would not go off, because the assembly of the core is always subcritical. Even if the high explosives of the implosion device goes off (because of the heat or fire, for example), the spontaneous nuclear explosion is very unlikely. These shaped charges in the implosion design have to be set off from a precise starting point at exactly same time. [Setting of the "implosion lenses" of the implosion device simultanneously was one of the major technical hurdles of the Fat Man development]

    And, honestly I do not believe that such a strong neutron source could be realised using a neutrino beam.

  25. Re:Ice Cubes on Laid off? What are You Doing w/ Your Newfound Freedom? · · Score: 1

    1. Why the above post is not rated Insightful?
    2. Do you by chance happen to know a biotech company in Bay Area (or in/around San Diego) which is looking for an excellent synthetic medicinal chemist with a drug currently in clinical trials (=me)?

    tvojkovsky@hotmail. com