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Aug
20
revised How fast would a spaceship have to go to reach Alpha Centauri within a person's lifetime?
added 2 characters in body
Aug
20
revised Mass-Energy relation
deleted 74 characters in body
Aug
9
comment Understanding the four fundamental forces of the standard model - are they magic
Clarke's Third Law: Any sufficiently advanced technology is indistinguishable from magic.
Jul
28
accepted Rosenberg-Coleman effect
Jul
17
awarded  Suffrage
Jul
17
comment Can a web community write papers?
Yes, one of the most notable example I know: HoTT book. But it is underpopular now, as it should be.
Jul
15
revised Singularity in Newton's gravitational law
fixed typesetting
Jul
15
suggested approved edit on Singularity in Newton's gravitational law
Apr
27
suggested rejected edit on What is the lenght of the rope?
Apr
20
revised Finding the vacuum which breaks a symmetry
improved list
Apr
20
suggested approved edit on Finding the vacuum which breaks a symmetry
Apr
16
awarded  Yearling
Apr
16
awarded  Popular Question
Apr
16
comment Why do we see laser beams?
Thanks! There is also a Boom-Boom in Star Wars, so... the sci-fi isn't give much help in learning physics.
Apr
16
accepted Why do we see laser beams?
Apr
16
comment Why do we see laser beams?
So, in vacuum with a few particles in a unit of volume the laser beam would be almost invisible? (haven't found any photos of laser beam in space)
Apr
16
asked Why do we see laser beams?
Mar
21
awarded  Custodian
Mar
21
reviewed Approve Question about thermodynamic conjugate quantities
Dec
12
suggested rejected edit on Centrifugal force acting on ring