Become a fan of Slashdot on Facebook


Forgot your password?

Submission Summary: 0 pending, 1 declined, 0 accepted (1 total, 0.00% accepted)

Slashdot Deals: Deal of the Day - Pay What You Want for the Learn to Code Bundle, includes AngularJS, Python, HTML5, Ruby, and more. ×

Submission + - Purdue-Stanford team finds radioactive decay rates (

Whatsisname writes: A team of scientists from Purdue and Stanford universities has found that the decay of radioactive isotopes fluctuates in synch with the rotation of the sun's core. Purdue researchers Ephraim Fischbach, a professor of physics, and Jere Jenkins, a nuclear engineer, reported observing a drop in the rate of decay that began a day and half before and peaked during the December 2006 solar flare and an annual fluctuation that appeared to be based on the Earth's orbit of, and changing distance from, the sun. In general, the fluctuations that Jenkins and Fischbach have found are around a tenth of a percent from what is expected. Jenkins and Fischbach suggest that the changes in the decay rates are due to interactions with solar neutrinos, nearly weightless particles created by nuclear reactions within the sun's core that travel almost at the speed of light.

We're here to give you a computer, not a religion. - attributed to Bob Pariseau, at the introduction of the Amiga