The polarization tag has no wiki summary.
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5answers
3k views
9
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1answer
99 views
If light is linearly polarized, does it have some spatial extent?
If light (a photon) is linearly polarized, say vertically, does it have some vertical spatial extent (perhaps in amplitude)?
5
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2answers
651 views
Why does it seem like a broken magnet's poles flip?
I just took a rare earth magnet out of an old hard drive. Lacking an appropriate screwdriver, force was used, and the magnet broke into two pieces; one about a quarter of the original size and one ...
5
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0answers
147 views
What is the difference between the properties of Electron spin and Photon polarization/helicity?
What is the difference between a photon's polarization/helicity and an electrons spin half? I know that the photon is spin 1 but isn't its polarization analogous to spin half?
This question stems ...
4
votes
2answers
482 views
Half wave plate and angular momentum
Given:
A half wave plate freely floating in space.
Circularly polarized light, falling perpendicularly to it.
The plate changes polarisation of the beam to the opposite one. Therefore it ...
11
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3answers
1k views
Why can't my eye see itself in the mirror through polarizing 3D-glasses?
I found a pair of polarizing "3D glasses" lying around, and tried to look at myself in the mirror while wearing them.
To my utter confusion, when closing the left eye and only looking through the ...
6
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2answers
716 views
Wheeler-Feynman theory, QED without fields, vacuum polarization
Initially Wheeler and Feynman postulated that, the electromagnetic field is just a set of bookkeeping variables required in a Hamiltonian description. This is very neat because makes the point of ...
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0answers
43 views
coordinate change differential equation polar
I noticed that v [in step (2.5)] is not the same as the terms from the first formula, even if they are related..
I tried to understand how did he reach to this ...
0
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2answers
81 views
Is reversal of magnetic polarity in a planet an instantaneous occurence?
Just what the title states -
Does reversal of magnetic poles in a planet refer to the point in time when reversal is complete?
OR
Does it refer to the entire drawn out process (assuming the ...
