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Feb
14
reviewed Approve What happens to a body if it rotates extremely fast?
Jan
16
awarded  Nice Answer
Oct
29
awarded  Notable Question
Oct
28
awarded  Yearling
Oct
4
awarded  Notable Question
Jun
14
awarded  Popular Question
Jun
5
awarded  Popular Question
Dec
29
reviewed Approve Can we explain Newton's first law mathematically?
Dec
23
asked Where does the factor of $\gamma^2$ come from in synchrotron radiation?
Dec
22
revised What will happen to a permanent magnet if we keep the same magnetic poles of two magnets close together for a long time?
Edited spelling and grammar of title + post
Nov
24
awarded  Notable Question
Nov
24
comment Why aren't there spherical galaxies?
Possible duplicate of physics.stackexchange.com/q/93830
Nov
24
comment Why aren't there spherical galaxies?
It's worth noting that this answer is true for spiral galaxies, not for elliptical galaxies or globular clusters, as pointed out by @Guillochon in the comments.
Nov
24
answered Why aren't there spherical galaxies?
Nov
16
answered Are stars getting more metal-rich, less massive and shorter-lived with cosmic time?
Nov
16
comment Is it possible to increase temperature of sun using radiation of sun itself?
@LorenPechtel - Sorry, I should have made it clear. In my answer, I'm considering this hypothetical mirror to be a fraction of the size of the sun. i.e., only reflecting a few % (at most) of the radiation emitted.
Nov
15
answered Is a photon really massless?
Nov
15
reviewed Approve How to chose right lens for concentrating IR signal?
Nov
15
answered Is it possible to increase temperature of sun using radiation of sun itself?
Nov
15
answered Question about dot product of four vectors?