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Apr
12
awarded  Tumbleweed
Apr
5
asked Multipole expansion of the electric field generated by an infinite charged plane
Mar
20
comment Excitations implied by symmetries
Thanks for this explanation, it really helps me. Can you point out more specifically what would not work in the case where the symmetry is not broken (i.e. you still have homogeneity or isotropy), and what would not work if the symmetry broken were discrete? Thank you very much.
Mar
19
comment Direct comparison of energy measurements for kids
Thanks your comment. Could you please also give me some advice about the physics? I see that you think I am not prepared to teach these subject (in fact I am a unit developer for this project, therefore I will not teach it myself, but a physics teacher will). Could you please specify what makes you think so and what in my observations gives you this impression? I am not up for any polemics, but I think your opinion could really help. Thanks!
Mar
18
revised Direct comparison of energy measurements for kids
added 250 characters in body
Mar
18
asked Direct comparison of energy measurements for kids
Mar
13
asked What makes some air bubbles in water more persistent?
Mar
6
asked Would a non-rotating Earth collapse on the Sun?
Mar
6
asked Will the Earth ever show synchronous rotation? Why and when?
Mar
3
revised Stability of plants and buildings: the role of the xylem
deleted 22 characters in body
Mar
2
comment Stability of plants and buildings: the role of the xylem
I am feathering my own nest, but the question is about the physics of the natural system in question, not about the way to engineer, improve or optimise the stability of the system for itself.
Mar
2
revised Stability of plants and buildings: the role of the xylem
added 114 characters in body
Mar
2
asked Stability of plants and buildings: the role of the xylem
Feb
1
revised Does irrotational imply inviscid?
added 2 characters in body
Dec
9
asked Do electromagnetic waves produce sound?
Dec
6
comment Earth as a conductor
Thanks for the comment. I specified a little bit better which cases I am referring to :)
Dec
6
revised Earth as a conductor
added 83 characters in body
Dec
6
asked Earth as a conductor
Dec
4
asked How does mass affect the range of a nuclear particle?
Nov
4
asked Fluid motion videos