Seth
asked
Neil deGrasse Tyson:
Hey Neil! I had a question about supernovas. So I understand how a star could collapse once it has produced too much iron and runs out of fissionable material and loses the outward pressure from the nuclear reactions. But what causes it to then rebound outwards and explode?
Neil deGrasse Tyson
Excellent erudite question. You can calculate how much kinetic energy is manifested by the falling material now that there's nothing to hold it all up. When all that falling material reaches the center, something has to happen to the kinetic energy. It all gets converted to heat energy,-- spontaneously. something I'd like one day to witness.
More Answered Questions
Bill Webber
asked
Neil deGrasse Tyson:
Gm Neil...in your opinion, what are "the best" sci-fi books for people actually trained in science? I loved "Contact" (of course) and recently did a google-search on my question above. As a result I'm currently reading "The Three-Body Problem" by Liu Cixin. FWIW my undergrad degree was in Physics/Astrophysics...
Torsten Nielsen
asked
Neil deGrasse Tyson:
Do you think healthy sceptisisme has taken a turn to where people belive in less and less they hear, true or not? Fake news coming from high authority people like presidents and other worldleaders. Couls this explain conspiracy-theorists and all those. Or what do you think is the cause of false beliefs?
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