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Last updated on April 19, 2014 at 5:20 EDT

Latest Sidney Nagel Stories

2007-11-22 09:16:39

British poet William Blake once wrote that a world was contained in a grain of sand. Physicists have done one better, finding a surprising link between streams of flowing sand grains and the birth of the universe. A new study in the latest issue of the journal Physical Review Letters finds that flowing sand grains show liquid-like behavior also witnessed in particle-collider experiments that simulate our universe's first moments. "Nature plays the tricks that it...

2005-06-22 12:50:00

University of Chicago physicists have made careful measurements of flowing sand that can help resolve longstanding questions regarding how glasses differ from liquids at the atomic level, the scientists report in the Thursday, June 23 issue of the journal Nature. Glass flows just like liquids do, but at such a super-sluggish pace that for all practical purposes it takes on the appearance of a solid at room temperature. Yet after years of experiments, scientists still have failed to determine...