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seen Apr 9 at 4:57

I am a physicist,


Mar
24
comment Rigid body collision, 3 circles in contact
But let me think more about it.
Mar
24
comment Rigid body collision, 3 circles in contact
But in that case the balls are already in contact, it is not what I meant by "simultaneous" collision. It is a more complex interaction that can be "simplified" into a "simultaneous" collision. If you are going to simulate such configurations I guess you cannot use a "non-simultaneous" approach.
Mar
20
revised Rigid body collision, 3 circles in contact
added 13 characters in body
Mar
20
answered Rigid body collision, 3 circles in contact
Mar
10
revised How does isotropy of free space imply $L(v^2)$ for a free particle?
latex improvement
Mar
10
suggested suggested edit on How does isotropy of free space imply $L(v^2)$ for a free particle?
Mar
10
answered Understanding fields and their correlation to forces
Mar
6
comment Where is the atmospheric pressure equal to zero?
"any points in the same horizontal line should have the same pressure" is only valid within the same medium if you do not cross any interfaces
Mar
6
comment How do we demonstrate that all spectral colors exist in nature?
I mean whatever is the minimum amount of detail that can be observed with the better spectrometer. That is, the frequency difference that corresponds to two adjacent pixels in a spectrum (but I do not know how much that amount currently is).
Mar
6
comment Where is the atmospheric pressure equal to zero?
I would not call "atmospheric" the pressure at A. It is not in contact with the atmosphere and as DavePhd said, you can approximate it as being a vacuum (that is why you assume is zero).
Mar
5
comment Are particles solid?
Danu, dot get angry, I will erase my earlier comment on your answer, I was drunk. Deal?
Mar
5
revised Are particles solid?
edited body
Mar
5
comment Are particles solid?
I mean "if". I corrected it thanks. What I meant is that if space itself is made of "units", or quanta, so that there could be nothing smaller than these units.
Mar
5
revised Are particles solid?
added 171 characters in body
Mar
5
answered Are particles solid?
Mar
5
comment Intuition behind Faraday's Law?
Unfortunately, in many cases, understanding the physics implies understanding the math. In many cases you cannot make things simpler (but it might be that someone comes up with an intuitive explanation that doesn't requires to understand the math. I just cannot figure it out)
Mar
5
comment Intuition behind Faraday's Law?
it is not that obvious, at least to me. You would rather need to use the Maxwell–Faraday equation, which is a generalization of Faraday's law. You can get more details (if you can follow the math) at the link you origianally provided: en.wikipedia.org/wiki/…
Mar
5
comment Intuition behind Faraday's Law?
I might have misinterpreted your question. You are right that Faradys law can be explained (if you know maxwell' equations) by the fact that a changing magnetic field produces an electric force. But you could not derive that from basic principles at Faraday's time. The fact that a changing magnetic field does generate an electric force is an experimental observation (new at that time), it doesn't have to be so.
Mar
5
answered Intuition behind Faraday's Law?
Mar
5
answered Is there a limit to acceleration?