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physical phenomena > process > physical process > motion > mass motion > contraction > collapse > free-fall |
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free-fall | ||||
subject | fact |
free-fall | has definition A collapse in which gas clouds do not hit or impede one another. According to ELS, the Galactic halo formed in a free-fall collapse. | ![]() |
is a kind of collapse | ![]() | |
physical process | has domain physics | ![]() |