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location Massachusetts
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visits member for 3 years, 2 months
seen Jun 23 at 18:11

I'm a grad-student in Astrophysics, focusing on theory, and generally studying high-energy transients.


Jun
2
comment Can a neutron star compress until it's converted to a black hole?
This is Really interesting! Thanks for adding this
May
31
reviewed Approve What is all energy made of?
May
31
comment Mirror problem of radiation pressure
See the comments to my response previously. The pressure does not increase for each bounce - because, presumably, the photon-number is conserved (since the problem doesn't specify any injection).
May
30
comment Mirror problem of radiation pressure
Even with 100% efficient reflection there is no infinite thrust.
May
29
comment Mirror problem of radiation pressure
@ChrisMueller, I don't think so. The pressure is determined by the rate of collisions, not the total number of collisions. Because the photon number is being conserved the pressure doesn't continue to grow.
May
25
comment Is a matter anti-matter collision comparable to Gamma Ray Burst (GRB) energy output?
en.wikipedia.org/wiki/Antimatter_comet#Gamma-ray_bursts
May
13
reviewed Reject When Fire meets Water
May
13
reviewed Reject Definition of electric charge and proper explanation
May
13
comment Why does a supernova explode
Definitely. Thanks @RobJeffries
May
13
revised Why does a supernova explode
Added reference, fixed typo
May
13
revised Why does a supernova explode
added 77 characters in body
May
13
comment Why does a supernova explode
Thanks for your comments @RobJeffries, I've updated the neutrino energies --- my mistake. I tried to avoid the details of Ni56 vs. Fe56 production in the core. Can you provide some references for your last two points?
Apr
26
reviewed Approve 3D Quantum harmonic oscillator
Apr
11
reviewed Close Does time expand along with space?
Apr
11
reviewed Close Expectation value of Commutator of Hermitian operators
Apr
11
reviewed Leave Open How can static friction do work?
Apr
7
awarded  Yearling
Mar
2
reviewed Approve Does a magnetic field decrease or increase entropy?
Feb
12
comment Moment of inertia question
Well, how can you calculate that using the same principles?
Feb
12
comment Moment of inertia question
What I meant was that the 'original' axis of rotation, has to be parallel to the 'new' axis (i.e. the axis which you want the answer for). You can find a way to do this for each of the rods, e.g. compare $BC$ to $DE$.