Physics news

Physicists hope to tie light beams in knots

Usually, light beams shine in a straight line, with the possible exception of light being bent by gravity. But scientists are now investigating how to make light beams into looped and knotted configurations. ...

Sep 12, 2008 feature
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New String-Theory Notion Redefines the Big Bang

String theory — the concept that all particles can be represented as strings or string-loops of incredibly minute length, oscillating at various frequencies — was initially developed to help explain why quarks, the tiny ...

Mar 31, 2006 feature
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Physicists Develop Test for 'String Theory'

For decades, scientists have taken issue with “string theory”—a theory of the universe which contends that the fundamental forces and matter of nature can be reduced to tiny one-dimensional filaments called strings—because ...

Jan 23, 2007
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