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location Princeton, NJ
age 25
visits member for 2 years, 2 months
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I am a graduate student studying astrophysics at Princeton. I received my bachelor's in physics and mathematics from Caltech (2011).


Feb
5
reviewed Leave Open Source of beating phenomena of a Michelson interferometer?
Feb
5
reviewed Close How does a MRI use 20.1kW yet creates over 204K BTU/h?
Feb
5
reviewed Close How to determine the order of indications of a clock?
Feb
5
reviewed Close Angular Velocity and Translation velocity after ball bounce
Feb
5
reviewed Close Why is it more likely that the particle with negative mass falls into a black hole?
Feb
5
reviewed Close Is the system of equations of electrostatics underdetermined or overdetermined?
Feb
5
reviewed Leave Open Is two cars colliding at 25 mph the same as one car colliding into a wall at 50 mph in reference to injuries?
Feb
5
comment Non-Locality of Space - QFT (Srednicki's book)
Possibly a duplicate of physics.stackexchange.com/q/13624 or more directly physics.stackexchange.com/q/18762, but this approaches from a different enough angle that I'm not personally inclined to close.
Feb
5
comment Observed composition of UHE cosmic rays
For the uninitiated, the criterion is set by the fact that once the particle gets too energetic, its Larmor radius is bigger than the region with the magnetic field, and so it will escape with no chance for further acceleration. Thus you need either a very strong a very extended field (or both! but this tends not to exist) to accelerate UHE's.
Feb
4
reviewed Leave Open What is fundamentally physically impossible?
Feb
4
reviewed Close Philosophical take on Schrodinger's cat paradox
Feb
4
reviewed Leave Open Why is there no way to make electric field at point P zero by changing quantity and sign of charge of $q_1$?
Feb
4
reviewed Leave Closed interaction of mathematical structures (rephrased)
Feb
4
reviewed Leave Closed Why does a picture of a person seem to be looking in the same direction irrespective of the angle of observation?
Feb
4
comment Why does a picture of a person seem to be looking in the same direction irrespective of the angle of observation?
This question appears to be off-topic because it is about perception and artistic technique, not physics.
Feb
4
answered Doppler Effect, Why Can't We Just Add Speed to Argument?
Feb
4
comment Do two beams of light attract each other in general theory of relativity?
There is nothing wrong with the setup here, but note the paper Stan Liou cites shows that perfectly parallel beams happen to have no attraction.
Feb
4
reviewed Close Calculate work done in an inclined plane
Feb
4
reviewed Leave Closed Collision of multiple fluid flows at a point
Feb
3
comment How is dark energy calculated
The standard, concordance $\Lambda$CDM universe is infinite, and so too is its mass (not that one should be defining a global thing like mass in GR anyway, at least not without serious thought as to what it means). Unless I'm misunderstanding, your first, fourth, and fifth equations all read $\infty = \infty$.