News tagged with gyrations
A Newtonian system that mimics the baldness of rotating black holes
Feb 23, 2009 |
4.3 / 5 (18) |
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(PhysOrg.com) -- The rotating black hole has been described as one of nature's most perfect objects. As described by the Kerr solution of Einstein's gravitational field equations, its spacetime geometry is ...
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Mechanical Motion Used to 'Spin' Atoms in a Gas
Dec 07, 2006 |
4.1 / 5 (11) |
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For the first time, mechanical motion has been used to make atoms in a gas “spin,” scientists at the National Institute of Standards and Technology report. The technique eventually might be used in high-performance ...
Voyages to the Sun
Dec 02, 2005 |
3.8 / 5 (5) |
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Humanity's epic voyages to the Moon are well known, the stuff of history. But what about voyages to the Sun? Though they do not involve human spacecraft, those voyages are no less epic. And on the occasion ...
Three Planets Bunch Up In Twilight & Deep Impact
Jun 21, 2005 |
2 / 5 (2) |
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Gaze low to the west into the deepening twilight for the next couple of weeks and three planets will await your view. One is bright; two are fainter. You can follow them through their celestial gyrations as they shift position ...
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