1d
revised Is quantum entanglement functionally equivalent to a measurement?
added 487 characters in body
Jun
25
accepted Throwing a micro black hole into the sun: does it collapse into a black hole or does it result in a supernova?
Jun
25
comment Dark Civilizations?
this is definitely not a duplicate, since in this question there is the possibility of 'dark dyson swarms' made of hadronic matter, but that are way colder than what one would expect from the usual heat waste analysis. Such 'dark objects' have been ruled out to make up all of dark matter, but they could still make up a non-negligible fraction of it
Jun
25
comment micro black hole forces
yes, definitely this is the way to go for this. Of course, you could probably not risk using this inside a planetary surface (unless you were really good at the dynamically self-correction of the gravitational anchor).
Jun
25
accepted micro black hole forces
Jun
24
comment Is quantum entanglement functionally equivalent to a measurement?
If you are one of two entangled systems, what you will see (upon repeated experiments where the 'quantum' system is prepared in the same system, but obviously the observer can't be prepared in the same state over and over) is that your particle states seem to be probabilistic instead of behaving like a deterministic wave amplitude
Jun
24
comment question about Blandford-Znajek original paper
@PaulT. looking at section II of that paper, they seem to make the assumption that most of the magnetic field comes from the neutron star degenerated core. I think that assumption cannot be extrapolated as is for black holes. I wonder why Blandford/Znajek quote it as if it was relevant without further details
Jun
23
comment How to derive the Schwarzschild radius?
it is meant for completeness, but apparently the downvoters think otherwise
Jun
23
revised How to derive the Schwarzschild radius?
added 52 characters in body
Jun
23
answered How to derive the Schwarzschild radius?
Jun
23
revised question about Blandford-Znajek original paper
added 609 characters in body
Jun
22
revised Is the Universe being dragged into a singularity rather than expanding?
deleted 11 characters in body
Jun
22
answered Is the Universe being dragged into a singularity rather than expanding?
Jun
22
awarded Nice Question
Jun
21
comment Non-local gravitational energy tensor
yes, you are right of course
Jun
20
revised Non-local gravitational energy tensor
added 101 characters in body
Jun
20
asked Non-local gravitational energy tensor
Jun
20
awarded Popular Question
Jun
20
comment Throwing a micro black hole into the sun: does it collapse into a black hole or does it result in a supernova?
@RobJeffries do you agree with that argument about viscous drag will make matter collapsing into the black hole to have extremal specific angular momentum?
Jun
20
awarded Nice Question
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