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The Newspaper Shop -- Monday edition
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15-07-02, 03:39 PM
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TankGirl
Madame Comrade
Join Date: May 2000
Location: Area 25
Posts: 5,587
Re: The Newspaper Shop -- Monday edition
Quote:
Quantum gyroscope could reveal Universe's spin
A quantum gyroscope could tell us if the entire Universe is in a spin, according to new research by scientists. Physicists used to think it made no sense to say the Universe was or was not rotating. "Rotating relative to what?" asked the Austrian physicist Ernst Mach in 1893. Then Einstein came along. According to his general theory of relativity, if most of the matter in the Universe happens to be spinning, all of space-time will be pulled round with it. If this is the case, the Universe must have been spinning ever since the earliest moments after the big bang.
http://www.newscientist.com/news/news.jsp?id=ns99992526
A cool story - and cool technology too!
Using atom beams and Bose-Einstein condensate beams in cyroscopes and reading spacetime curvature from the interference patterns... that rocks!
- tg
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