审问,审讯
发表于 2025-3-25 05:59:26
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conservative
发表于 2025-3-25 11:15:42
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Hallowed
发表于 2025-3-25 13:13:12
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FRONT
发表于 2025-3-25 17:47:45
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barium-study
发表于 2025-3-25 22:14:27
How Mass Creates Gravity,the Einstein equation of gravity: at the same time the same mass also reacts to gravity, via the equivalence principle. We will see that both laws of nature fit neatly together. This explanation reveals that this theory of general relativity is the simplest theory of gravity we could imagine.
Pathogen
发表于 2025-3-26 02:06:03
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丰富
发表于 2025-3-26 06:16:34
Light, Matter, and Energy,ht. However, at the same time, the energy of the object also increases. This directly leads to the famous equation ., showing that mass and energy are like two sides of the same coin. We also show that light is pure energy which cannot rest, but carries mass, and can transform into mass.
gait-cycle
发表于 2025-3-26 08:28:57
Light, Electricity, and Magnetism,is absolute, as is the speed of light. We will demonstrate this by a simple example, a straight wire carrying an electric current. We will see why the magnetic field around this wire exhibits relativity in everyday life. This example was the starting point for the theory of special relativity.
他很灵活
发表于 2025-3-26 16:17:28
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infatuation
发表于 2025-3-26 18:10:53
Equivalence Principle in Action,peed, we know how gravity bends space-time near heavy masses such as planets or stars. After we have learned the Einstein equation of gravity, we will see in Chap. . exactly how the falling speed is increasing.