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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."

8 of 199 comments (clear)

  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 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?

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    "For every expert, there is an equal and opposite expert"
  3. 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.

  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).

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  5. 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.)

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  6. 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.

  7. 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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  8. 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.