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 Message Boards » » Nuclear Decay May Vary With Earth-Sun Distance Page [1]  
nastoute
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From Slashdot:

Quote :
""We've long thought that nuclear decay rates are constant regardless of ambient conditions (except in a few special cases where beta decay can be influenced by powerful electric fields). So that makes it hard to explain two puzzling experiments from the 1980s that found periodic variations over many years in the decay rates of silicon-32 and radium-226. Now a new analysis of the raw data says that changes in the decay rate are synchronized with each other and with Earth's distance from the sun. The physicists behind this work offer two theories to explain why this might be happening (abstract). First, some theorists think the sun produces a field that changes the value of the fine structure constant on Earth as its distance from the sun varies. That would certainly affect the rate of nuclear decay. Another idea is that the effect is caused by some kind of interaction with the neutrino flux from the sun's interior which also varies with distance. Take your pick. What makes the whole story even more intriguing is that for years physicists have disagreed over the decay rates of several isotopes such as titanium-44, silicon-32, and cesium-137. Perhaps they took their data at different times of the year?""


http://science.slashdot.org/science/08/08/29/1227239.shtml

This is so exciting it makes me giddy.

[Edited on August 29, 2008 at 11:06 AM. Reason : .]

8/29/2008 11:06:35 AM

agentlion
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so you mean we can finally use decay rates to date the earth as 6000 years old!?
yessss

8/29/2008 11:14:00 AM

darkone
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Could it be likely that it is the instruments are being affected and that the decay rates are constant but measured inconsistently?

8/29/2008 2:07:35 PM

dubus
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^good point, otherwise would that mean that there is a change rate thats not being accounted for? I suppose I'll have to go back to school again

8/29/2008 2:37:23 PM

Smath74
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ha lets wait to see this get peer reviewed, reproduced, and be actual science before we say "OMFG"

8/31/2008 12:47:10 PM

Aficionado
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this completely undermines everything that i have been doing the past year

FUCK!

8/31/2008 12:49:50 PM

ThePeter
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Why is this exciting?

8/31/2008 1:05:29 PM

EuroTitToss
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so you mean we can finally use decay rates to date the earth as 6000 years old!?
yessss

8/31/2008 3:03:37 PM

 Message Boards » Tech Talk » Nuclear Decay May Vary With Earth-Sun Distance Page [1]  
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