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12 Comments Already

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xXTaNodel408Xx Said,
May 13th, 2010 @12:18 am  

i wish i had a brain like his……even though i dont get it it fasinates me

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listminusv Said,
May 13th, 2010 @12:44 am  

lol i’m up for that….we should like post it to him and write down….”from your faithful you tube physicists” !!!

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ravaabyee Said,
May 13th, 2010 @1:00 am  

these lectures are better than james cameron and steven spielberg put together

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luzzie9 Said,
May 13th, 2010 @1:04 am  

Professor Susskind suggested that a course in quantum field theory would follow. What happened to it?

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foketesz Said,
May 13th, 2010 @1:54 am  

I may be loco, but I enjoy these lectures more than recent blockbusters…

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AmanAttitude Said,
May 13th, 2010 @2:02 am  

@wawens
@Mazmatickz
@ArjenDijksman
Dear friends, as you all must be knowing that the magnitude of electric field vector is constant in Circular polarized light, can anybody of you tell how does physically rotating linear polarized light source ensure the above condition??? So, i think it is not possible to obtain a circular polarized light the way “wawens” has suggested (as linear polarized light source will give e. field with varying magnitude). we can discuss further, i may not be correct..

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mosswalker2 Said,
May 13th, 2010 @2:36 am  

GEEKS ! ! ;-)

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cursorminer Said,
May 13th, 2010 @3:01 am  

maybe all us youtube viewers should club together to buy Prof Susskind a bunch of pens??

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ArjenDijksman Said,
May 13th, 2010 @3:35 am  

That’s an interesting question. Rotating the source (=the electrons of the source) gives unpolarized light with each photon remaining linearly polarized. I think that even if we could manage to rotate the source at the frequency of the emitted light, the individual photons would still be linearly polarized. But at that frequency the emission profile of the electrons of the source wouldn’t be the same.

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Mazmatickz Said,
May 13th, 2010 @3:36 am  

Well, I think it would be almost impossible to rotate a linear polarized light source manually to match the speed of which ordinary circular polarized light rotates, the angular frequency of circular polarized light is too high. Angular frequency is the speed of light times the wavenumber: w=c*k, this is a very big number.^^

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wawens Said,
May 13th, 2010 @3:42 am  

Excellent video. Thanks.
If I were to physically rotate my linear polarized light source would I then obtain an equivalent circular polarized photon stream in the same way as an ordinary cicular polarized source?

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mrbondisback Said,
May 13th, 2010 @3:54 am  

excellent as always:):)

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