Need someone to do this experiment

SouthArk370Z · 08-18-2013, 10:03 AM

Quote:

Originally Posted by RiCharlie

I seem to be having difficulty expressing myself ...let me try this way..you have a light source,.,A... and then three pieces of polarized glass or plastic put two between your eye and the light source and rotate them in such a way as to stop all the light from coming through,,. as you just indicated ...,.then put the third piece between your eye and the two other polarizers..not changing them .. and see it you can rotate the third in such a way as to once again see the light,..

Whew!!

The light is blocked by the second of the first two filters. There is no light (to speak of) to even go through the third filter. So, no, it won't work.

Polarizing filters don't actively polarize light - they block those rays that aren't oriented properly and allow the correctly oriented rays to pass through.

RiCharlie · 08-18-2013, 10:12 AM

Quote:

Originally Posted by SouthArk370Z

The light is blocked by the second of the first two filters. There is no light (to speak of) to even go through the third filter. So, no, it won't work.

Polarizing filters don't actively polarize light - they block those rays that aren't oriented properly and allow the correctly oriented rays to pass through.

Actually I have a book on quantum mechanics that says it does!! Its amazing and no one can explain it... I wanted someone to test this for me.. maybe I will just do it myself...but the problem is I dont have any polarizers ..

SouthArk370Z · 08-18-2013, 11:53 AM

Quote:

Originally Posted by RiCharlie

Actually I have a book on quantum mechanics that says it does!! Its amazing and no one can explain it... I wanted someone to test this for me.. maybe I will just do it myself...but the problem is I dont have any polarizers ..

There may be something going on on a quantum level but, IRL, you're going to get zero light past the second filter for the third filter to act on. (There will be some light since the filters aren't perfect). If you arrange the filters in a 0-90-0 configuration, you will, for all intents and purposes, get zero light out.

The filters are not "twisting" the light passing through them, they are blocking the "wrong" waves. There is no way to "reconstruct" what isn't there.

Search for "optical bench" or "photo polarizer" to find places that sell filters, jigs, &c. You may be able to find some "filters" that actually twist the waves but they won't be photographic/sunglasses filters.

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