what is a black hole ? ، سیاهچاله چیست و چگونه کار میکند؟
TRANSCRIPT
What is a black hole ?
1394/12/22PARAN.BLOG.IR :
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Pierre Simon Laplace
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Schwarzschild+ Kerr+
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NGC 4261
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MACHO 96 BL5
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Cygnus X 1
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