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When researchers found an unusual linkage between solar flares and the inner life of radioactive elements on Earth, it touched off a scientific detective investigation that could end up protecting the lives of space-walking astronauts and maybe rewriting some of the assumptions of physics.
It's a mystery that presented itself unexpectedly: The radioactive decay of some elements sitting quietly in laboratories on Earth seemed to be influenced by activities inside the sun, 93 million miles away.
Is this possible?
Researchers from Stanford and Purdue University believe it is. But their explanation of how it happens opens the door to yet another mystery.
There is even an outside chance that this unexpected effect is brought about by a previously unknown particle emitted by the sun. "That would be truly remarkable," said Peter Sturrock, Stanford professor emeritus of applied physics and an expert on the inner workings of the sun.
The story begins, in a sense, in classrooms around the world, where students are taught that the rate of decay of a specific radioactive material is a constant. This concept is relied upon, for example, when anthropologists use carbon-14 to date ancient artifacts and when doctors determine the proper dose of radioactivity to treat a cancer patient.
Originally posted by JBRiddle
reply to post by Swills
...The Last recorded X class flare was in September 1859, this flare cause Telegraph Office (only electrical based tech around) around the world to catch fire. This one flare knocked out all telegraph communication world wide for weeks...
This list is based in part on "Large Solar Flares Since 1976" compiled by IPS Radio & Space Services. The two most recent entries (Dec. 5, 2006; Sept. 7, 2005) are highlighted in red.
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Ranking Day/Month/Year X-Ray Class
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1 04/11/03 X28+
2 02/04/01 X20.0
2 16/08/89 X20.0
3 28/10/03 X17.2
4 07/09/05 X17
5 06/03/89 X15.0
5 11/07/78 X15.0
6 15/04/01 X14.4
7 24/04/84 X13.0
7 19/10/89 X13.0
8 15/12/82 X12.9
9 06/06/82 X12.0
9 01/06/91 X12.0
9 04/06/91 X12.0
9 06/06/91 X12.0
9 11/06/91 X12.0
9 15/06/91 X12.0
10 17/12/82 X10.1
10 20/05/84 X10.1
11 29/10/03 X10
11 25/01/91 X10.0
11 09/06/91 X10.0
12 09/07/82 X 9.8
12 29/09/89 X 9.8
13 22/03/91 X 9.4
13 06/11/97 X 9.4
14 24/05/90 X 9.3
15 05/12/06 X 9.0
15 06/11/80 X 9.0
15 02/11/92 X 9.0
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