27,747 reputation
459104
bio website
location Princeton, NJ
age 26
visits member for 2 years, 11 months
seen 44 mins ago

I am a graduate student studying astrophysics at Princeton. I received my bachelor's in physics and mathematics from Caltech (2011).

My primary interest is in general relativistic magnetohydrodynamics simulations of black hole accretion.


Dec
16
comment Why isn't temperature frame dependent?
@dmckee this one? physics.stackexchange.com/q/83488
Dec
16
comment Can sand falling in a floating hourglass cause it to sink? (Follow up to hourglass question)
@BMS Based on fibonatic's answer it doesn't - this setup just seems to be designed for the sole purpose of confusing physics students with regard to the original hourglass question.
Dec
16
reviewed Reviewed How to measure resistance of a piece of wire?
Dec
16
reviewed Leave Open Is there a minimum mass is required for light to be noticeably bent?
Dec
16
reviewed Close Canonical transformation problem
Dec
16
reviewed Reject Estimate number of hairs on human head
Dec
13
comment How would neutron matter appear to the naked eye?
@Wet Actually, all gravity does is shift the equilibrium concentration. Neutrons still decay in neutron stars, but they are being reformed by combining protons and electrons. Because both reactions release high-energy neutrinos, neutron stars cool by maintaining equilibrium, paradoxically enough.
Dec
11
comment Proof of conservation of information
possible duplicate of Why is information indestructable?
Dec
10
reviewed Leave Open Non-rigid body rotational dynamics
Dec
10
reviewed Close Why is static friction called self adjusting force?
Dec
10
reviewed Close Determinant and adjunct of $k-\omega^2m$ in terms of natural frequencies
Dec
8
comment Is wearing 3D glasses from the cinema as sunglasses hurtful to the eyes?
I'm... not sure I understand this answer. I don't think the OP was suggesting looking directly at the Sun - that would be foolish with or without sunglasses. And certainly walking around outside with nothing on is safe, so walking around with 3D glasses on is no worse, if a bit weird. Besides, any glasses you get that cost less that $500 are UV-opaque, since they will either be made of non-quartz-crystal glass or of organic-double-bond-rich plastic. "UV-blocking" is just a marketing ploy to get people to pay more money.
Dec
8
reviewed Close Microscopy types and techniques?
Dec
8
reviewed Leave Open Does String Theory explain wave-particle duality?
Dec
8
reviewed Close Please describe how a vacuum flask/thermos works
Dec
7
comment How would neutron matter appear to the naked eye?
Note that even in neutron stars the equilibrium between neutrons and protons/electrons still consists of plenty of the latter, especially when considering the absolute density.
Dec
6
comment How is distance measured to far away stars and galaxies?
Neither parallax nor redshift work for Andromeda. Even with Gaia parallax can only be measured for a small fraction of our own galaxy; redshifts don't work for the closest few hundred galaxies.
Dec
6
comment Redshift Dependence in the Spatial Orientation of SDSS Galaxies having Redshift 0.19 to 0.20
It's not really clear what you're asking. Is there a real correlation between redshift and orientation? Is there some bias introduced in the SDSS pipeline? Clearly there must be background to this question, given those specific numbers.
Dec
6
comment Why is spectrum obtained by sunlight, said to be continuous?
an astrophysicist could probably tell you how many - A few tens of thousands of years at least, maybe upwards of a hundred thousand depending on how you estimate things :)
Dec
5
comment Atomic Orbitals, Singlets, Triplets
@Anonymous I think I'm starting to understand your concern. There are triplets, and there are triplets. P orbitals are triplets in that there are 3 degenerate levels, and S orbitals are singlets in the same sense. However, independent of atoms and orbitals, two spin-1/2 particles together can be viewed either as $|1/2,m_1\rangle \otimes |1/2,m_2\rangle$ (the tensor product of two identical Hilbert spaces) or as $|0,0\rangle \oplus |1,m\rangle$ (the direct sum of a singlet Hilbert space and a triplet one). This latter idea doesn't really connect with atomic orbitals, however.