21,448 reputation
44785
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location Princeton, NJ
age 25
visits member for 2 years, 4 months
seen 9 hours 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.


Oct
29
reviewed Close Boltzmann Distribution
Oct
29
reviewed Leave Open What type of energy is Dark Energy?
Oct
29
reviewed Leave Open How to prevent water droplets becoming larger on the tip of a nozzle?
Oct
28
comment What mechanism is responsible for the creation of these dunes on Comet 67P/Churyumov-Gerasimenko?
Note to potential answerers who assume, like I originally did, that this is sand: It was pointed out to me that we have observed other bodies to consist of larger rock fragments (think fist-sized stones, I'll see if I can dig up a reference), and at this resolution that would look the same as sand. So these may be large pebble dunes rather than sand dunes.
Oct
28
comment Is any energy required to deflect an asteroid, with force always perpendicular to its trajectory?
I'm confused. You talk about straight lines and lack of gravity, then you talk about centripetal forces. Which is it?
Oct
28
reviewed Close Electric field at a point
Oct
28
reviewed Leave Open Nuclear fusion and the Sun
Oct
28
comment What's so special about the speed of light?
@WetSavannaAnimal I haven't completely settled on my opinion, perhaps because I've only taught at the pre- or post-SR level. I do love the abstract approach like in your answer, especially since I think the main alternative of teaching relativity via "paradoxes" is counterproductive (and often just a form of showing off to the unlearned - "Look how weird physics is, but I understand it!"). On the other hand, there are all those useful thought experiments that rely on bouncing light back and forth between mirrors.
Oct
27
answered What's so special about the speed of light?
Oct
27
comment What's so special about the speed of light?
I actually think it is not a duplicate, despite the identical title.
Oct
24
revised What mechanism is responsible for the creation of these dunes on Comet 67P/Churyumov-Gerasimenko?
best not to use astronomy *and* astrophysics for all questions (see tag wikis); astrophotography refers to the process of taking pictures (which is not an issue here)
Oct
24
awarded  Necromancer
Oct
23
comment Center-of-mass frame for massless particles
And this is why various authors say "center-of-momentum frame" instead, where conveniently/confusingly it has the same acronym.
Oct
23
comment Failure of the Steady State Theory
@user36790 Before we settled on the Big Bang, "homogeneous" and "isotropic" would probably be interpreted as you're thinking - homogeneous and isotropic in spacetime. Once we decided the universe was not in steady state, we started implicitly restricting these terms to mean spatially homogeneous and spatially isotropic. People simply got tired of saying "spatially" everywhere, so they omitted it.
Oct
23
comment Direction of pressure in fluids
@jake Yes. My answer to a spinoff of this question touches on this a little.
Oct
23
answered Mathematical Reasoning for Fluid Pressure as a Scalar
Oct
22
comment Recommended books for undergraduate electrodynamics
I thought the biggest flaw (other than not being Purcell, of course), was the use of that script $r$. Look at all the pain it causes for those of us who typeset undergrad homework.
Oct
22
reviewed Close Graphene has a honeycomb lattice - true or false?
Oct
22
awarded  Nice Answer
Oct
22
comment Recommended books for undergraduate electrodynamics
The "level" may feel like it's between Griffiths and Jackson, but after reading Purcell cover to cover, I picked up Jackson and realized there was nothing in the latter I didn't already know (and Jackson is wrong on several points).