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2 questions
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How long will gravitational energy be around after the last supernova?
This question presupposes that you agree that the heat death of the universe is eventually gonna happen, in some far distant future.
I'm trying to understand what the different stages of the heat ...
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What would be the effect of WR104 if it was at the distance of Alpha Centauri and pointed at us?
If WR104 was at the distance of Alpha Centauri and its pole pointed at us when it went off what effect would it have? How badly would Earth be scorched?
If we were sitting right on the cannon’s mouth, ...
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