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Feb
26
comment How would a black hole power plant work?
How hard would it be to inject matter into the hole? The powerful radiation could win over gravity.
Feb
25
comment Why is causality preserved in special relativity?
Bieng "hit" by a Tachyon in one frame is "emitting" the Tachyon in another frame. Did the detector absorb to or create the Tachyon? No one knows, causality is no longer defined! This sounds absurd, and it is. This is why Tachyons probably don't exist.
Feb
25
revised Why is causality preserved in special relativity?
added 550 characters in body
Feb
25
comment Why is causality preserved in special relativity?
No, it's even weirder. Causality is gone. If the Tachyons are fast enough, the detector will simultaneously be hit with a single Tachyon from atom A, emit another toward B, and explode.
Feb
23
answered Why is causality preserved in special relativity?
Feb
10
comment Temperature Dependence of Fission
You would have to get to very high temperatures for the thermal energy to directly push the nucleus over the energy hump. On the order of mega or giga kelvin.
Feb
3
answered Is it true that Macrorealism can be shown false?
Feb
3
comment Are the recently observed Dirac monopoles separable?
The catch is the word "synthetic". A "synthetic" chemical is still really a chemical, BUT a "synthetic" magnetic field is not a real magnetic field.
Feb
1
comment Why aren't all conductors always charged?
The rubbing just facilitates contact; energy only goes into heat. The energy input comes from separating the attracting oppositely charged surfaces. In practice, you will notice the electrostatic effects when "rubbing" since surface separation at the edges occurs.
Jan
30
comment Is the Hawking radiation of a charged black hole thermal?
The real question is: how does Hawking radiation thwart our attempts at making a super-extramal hole by charging it up and allowing it to radiate, relying on the 511keV cutoff to prevent it losing charge as it loses mass?
Jan
30
revised How dangerous is a parallel plate capacitor which is used in physics demo experiments?
added 8 characters in body
Jan
30
answered Faster than light galaxies/clusters?
Jan
30
answered How dangerous is a parallel plate capacitor which is used in physics demo experiments?
Jan
29
revised Migration of an ion in a non-conductive medium
added 14 characters in body
Jan
29
answered Migration of an ion in a non-conductive medium
Jan
16
comment Non-coinciding event horizon and apparent horizon
It's constant acceleration from the observers standpoint.
Jan
16
comment Is there anything particularly special about sticky tape in the production of graphene?
It is sticky AND it can be dissolved by acetone, but the second property is by no means special. You need to dissolve the tape to isolate the graphene, you can't peel it off easily.
Jan
15
asked Earnshaw's theorem and springs
Jan
14
answered Why is the blue color of sky darker in high altitude regions?
Jan
9
revised Smoothed Particle Hydrodynamics, Chemical Reactions and Stiffness
added 48 characters in body