bhobba's latest activity
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bhobba reacted to Matterwave's post in the thread High School What Medium Does Light Travel Through in Space? with
Like.
The Hodge dual is quite a beautiful operator defined on the exterior algebra of an orientable manifold with a metric. For such a... -
bhobba reacted to Sagittarius A-Star's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
Consider the inhomogeneous Maxwell equations in (3+1) notation (Gaussian CGS units) with electric charge-density and electric...
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bhobba reacted to Matterwave's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
Nice, I didn't know he changed his views on this. My views are now closer to his.
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bhobba reacted to Ibix's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
I think you haven't quite caught the point here. We know why ##c## has the value it has - because when we picked some artifact and...
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bhobba reacted to PeroK's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
We could phase the question like this. Human beings are on the scale of 1-2 metres. And the human heart beats about once per second...
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bhobba reacted to Dale's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
No. If ##c## is a dimensionless 1 then you could equally say that it was absorbed into the space coordinate. Or that its cube was...
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bhobba reacted to GRQFT's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
Thanks. I'll look into those... The size of my Zotero physics collection has grown considerably since I joined PF!
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bhobba replied to the thread High School What Medium Does Light Travel Through in Space?.Well, that depends on what you mean by real. If only philosophers would agree on that, it may be answerable, but since they do not...
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bhobba replied to the thread High School What Medium Does Light Travel Through in Space?.Things get even more interesting when you learn about two important, though not often discussed, theorems of Wigner - the no-interaction...
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bhobba replied to the thread High School What Medium Does Light Travel Through in Space?.Nice exercise relating it back to the purely POR derivation of the lorentz transformations. Thanks Bill
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bhobba reacted to A.T.'s post in the thread High School What Medium Does Light Travel Through in Space? with Like.
Because of the choice of length that we call 'meter'.
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bhobba reacted to A.T.'s post in the thread High School What Medium Does Light Travel Through in Space? with Like.
The particular numerical value is just a matter of the unit system, as was already explained to you. In that equation c is the just...
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bhobba reacted to PeroK's post in the thread High School What Medium Does Light Travel Through in Space? with
Haha.
Don't try to tell me that SI units are a European conspiracy to try to confuse Americans! -
bhobba reacted to GRQFT's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
In the paper you reference, it says: Casimir effect: Force between macroscopic bodies due to alteration of vacuum fluctuations by...
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bhobba reacted to GRQFT's post in the thread High School What Medium Does Light Travel Through in Space? with Like.
I'm interested in learning enough to understand relativity (and QFT). I studied physics in college (decades ago), so I guess I'm at a...