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Sep
7
reviewed Edit What is the relation between isothermal process and its surrounding?
Sep
7
revised What is the relation between isothermal process and its surrounding?
formatting
Sep
7
reviewed Approve Why do pores make ceramic opaque?
Sep
7
reviewed Approve Can a $\gamma$-ray photon give some of his energy to an atom and accelerate it?
Sep
7
reviewed Leave Open Riemann curvature tensor notation in Wald
Sep
7
reviewed Close About how much force would something have to exert to be effectively unstoppable?
Sep
6
reviewed Approve Two runners on two different tracks
Sep
6
revised Hoop rolling inside a circular hole
deleted 1 character in body; edited tags
Sep
6
comment Hoop rolling inside a circular hole
Did you make a sketch of the situation? Or is it supplied with the question?
Sep
6
reviewed Edit Can mass be totally converted into energy?
Sep
6
revised Can mass be totally converted into energy?
fixed some typos
Sep
6
reviewed Reject Two runners on two different tracks
Sep
5
revised How to calculate the kinetic energy of supernova ejecta?
Improved some latex
Sep
5
reviewed Leave Open Should a pen be light or heavy?
Sep
5
comment Conservation laws and continuity equations
I don't really understand what you mean with "quantity teleportation". Also, do you have a specific field in mind?
Sep
5
comment Conservation laws and continuity equations
1. Do you know about flux? And how it comes into these kind of equations? 2. I would say, focus on the physical meaning of the terms in the equations, rather than the equation itself.
Sep
5
reviewed Close Does a moving star have a larger gravitational pull?
Sep
5
reviewed Close Does the speed at which sound travel depend on the volume (amplitude) of the sound?
Sep
5
comment Should a pen be light or heavy?
@ROIMaison I think that only starts to play a role for a pen heavier than hand+wrist+arm.
Sep
5
revised Should a pen be light or heavy?
deleted 3 characters in body; edited title