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2Â¥2008-05-01 20:58:02
yichenliu
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GrasaVampiro(½ð±Ò+2,VIP+0):3ks 4 Ur Sharing
GrasaVampiro(½ð±Ò+2,VIP+0):3ks 4 Ur Sharing
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Time, a measured or measurable period, a continuum that lacks spatial dimensions. Time is of philosophical interest and is also the subject of mathematical and scientific investigation. --Britannica, vol.11, p778 (1993) |
3Â¥2008-05-05 23:26:51
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4Â¥2008-05-05 23:28:17
yichenliu
½ð³æ (ÕýʽдÊÖ)
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- ÔÚÏß: 23.4Сʱ
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Einstein¡¯s Space-time
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In Einstein¡¯s special relativity, physical events occur in the Minkowski space (x0, x1, x2, x3). All the four components are identical entities (?), and are termed space-time.They follow the Lorentzian transformation. In Einstein¡¯s general relativity, spacetime is curved by the existence of mass and/or energy. A large density of mass bends the light cone inward. |
5Â¥2008-05-05 23:30:53
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½ð³æ (ÕýʽдÊÖ)
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6Â¥2008-05-05 23:31:16
renormalize
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- ɳ·¢: 265
- Ìû×Ó: 10318
- ÔÚÏß: 1414Сʱ
- ³æºÅ: 455387
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lvzhu2007(½ð±Ò+3,VIP+0):¸Ðл½»Á÷ £º-£©
GrasaVampiro(½ð±Ò+3,VIP+0):hay, man, U really understand QM!
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GrasaVampiro(½ð±Ò+3,VIP+0):hay, man, U really understand QM!
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7Â¥2008-05-06 20:39:24
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8Â¥2008-05-06 22:00:32
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- Ìû×Ó: 548
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9Â¥2008-05-06 22:03:13
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