Project Universe - Supernovae and Pulsars (2 of 3)
9:08
Added: 4 years ago
From: WarrenChu000
Views: 2,165
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  • You can't collapse an Earth-sized core in a microsecond; light can only travel 300km in this time, which would mean the core would be contracting at more than ten times the speed of light!

    ComradeSephiroth 2 years ago

  • I think you're right! She probably meant "milliseconds". Good observation.

    WarrenChu000 2 years ago

  • you meant 300.000 km

    washcloud 2 years ago

  • Actually since a microsecond is one-millionth, light can travel only 300 meters!

    ComradeSephiroth 2 years ago

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