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Bsc Physics


Dec
17
revised In special relativity, do explanations involving clocks require that the clocks are ticking and that $c$ is fixed?
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Dec
17
revised In special relativity, do explanations involving clocks require that the clocks are ticking and that $c$ is fixed?
added 521 characters in body
Dec
17
answered In special relativity, do explanations involving clocks require that the clocks are ticking and that $c$ is fixed?
Dec
12
comment Can antimatter-matter collisions generate heat?
Does your school have a reliable inexpensive supply of antimatter?
Dec
10
answered Space orientation of light waves
Dec
10
comment Photographic lenses from the physics point of view
2) "When a photographic lens is set to "infinity", its rear nodal point is separated from the sensor or film, at the focal plane, by the lens's focal length." 3) you'd need to know the type of glass and it's properties, for each element.
Dec
8
comment For a rocket travelling to a planet, which reference frame measures the dilated time?
Are you asking about the twin paradox?
Dec
6
comment Infinite Universe and Big Bang
Hasn't the universe always been infinite in extent? Even when all the stuff in it was in the same place?
Dec
5
revised Why are electrons attracted to a magnetic field?
video link
Dec
5
comment What force made the big bang erupt?
Doesn't "pre big bang conditions" require there to be a pre big bang time in which conditions can be?
Dec
5
answered Why are electrons attracted to a magnetic field?
Dec
3
revised Rigid bar on the floor of a rotating space station
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Dec
3
answered Rigid bar on the floor of a rotating space station
Dec
3
comment How to account for inertia in kinematics?
Perhaps these will help: Wkipedia: Orbit Modelling. Lunar Lander, Orbital motion in Easy Java Simulator Geostationary Earth Orbit Satellite Model using Easy Java Simulation
Dec
2
answered When passed, why does my car 'rock' on the highway when I'm stopped, but not when I'm moving?
Dec
2
awarded  Good Answer
Dec
2
awarded  Mortarboard
Dec
2
comment Why is space a vacuum?
@Johnathan: There's a lot more space than there is matter but it's the matter that is most interesting (to me anyway), so yeah 99.9…9% of us naturally focus exclusively on what I've described as negligible only because I'm comparing it with something quite large.
Dec
2
awarded  Nice Answer
Dec
2
revised Why is space a vacuum?
added 682 characters in body