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-   -   Need someone to do this experiment (http://www.the370z.com/photography/75456-need-someone-do-experiment.html)

RiCharlie 08-17-2013 08:54 PM

Need someone to do this experiment
 
I do not have a polarizer and this experiment calls for two..
Hold a polarizer ( by that I mean a device with two polarized glass or plastic pieces.....isnt that how they are made ??) .. between your eye and a light source and turn one glass until no light passes through..Hold it there...Do not change it....now put another single polarized glass or plastic between you and the first polarizer and see if you can turn it until you again see the light,.,.

Please let me know if you can see the light through the third polarizer...

I am told you will be able to see it but I want to make sure

Thanks

DEpointfive0 08-17-2013 09:05 PM

Ummmmm... That sounds wrong...

1 polarizer in any direction will yield light coming through, add a second one and rotate, and light will go dim, then black


You can do it with polarized sunglasses

RiCharlie 08-18-2013 08:17 AM

Quote:

Originally Posted by DEpointfive0 (Post 2450775)
Ummmmm... That sounds wrong...

1 polarizer in any direction will yield light coming through, add a second one and rotate, and light will go dim, then black


You can do it with polarized sunglasses


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!! :)

SouthArk370Z 08-18-2013 10:03 AM

Quote:

Originally Posted by RiCharlie (Post 2451063)
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 (Post 2451137)
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 (Post 2451145)
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.

DEpointfive0 08-18-2013 11:58 AM

Fùck it. I'll bite... Give me a min...

DEpointfive0 08-18-2013 12:09 PM

Quote:

Originally Posted by DEpointfive0 (Post 2451244)
Fùck it. I'll bite... Give me a min...

You're SOL, got burglarized a few years... I guess some were stolen... I only have 1 as well as 1 pair of polarized glasses.

DEpointfive0 08-18-2013 12:10 PM

Third-Polarizing-Filter Experiment Demystified — How It Works

DEpointfive0 08-18-2013 12:12 PM

Dirac Three Polarizers Experiment

Again, neither place I have quoted is that same as yours, they have a 45 degree turned polarizer in the MIDDLE, 0-45-90, not 0-90-90

RiCharlie 08-18-2013 05:54 PM

Quote:

Originally Posted by DEpointfive0 (Post 2451253)

I cant believe you found this ..that in itself is spooky!!! Who are you..what dimension do you come from? :tup: Seriously I am going to get that book and relay what is says..of course the easiest way is for someone to do the experiment...

DEpointfive0 08-18-2013 06:17 PM

Quote:

Originally Posted by RiCharlie (Post 2451558)
I cant believe you found this ..that in itself is spooky!!! Who are you..what dimension do you come from? :tup: Seriously I am going to get that book and relay what is says..of course the easiest way is for someone to do the experiment...

They make this thing called google, you google it.

I googled "3 polarizing filter experiment"

RiCharlie 08-19-2013 08:14 AM

Quote:

Originally Posted by DEpointfive0 (Post 2451577)
They make this thing called google, you google it.

I googled "3 polarizing filter experiment"

I am going to go to the library today and get that book...I will post what I find,..but I am very sure that is what it said....It ought to be easy enough to prove one way or the other..

DEpointfive0 08-19-2013 08:56 AM

Quote:

Originally Posted by RiCharlie (Post 2452043)
I am going to go to the library today and get that book...I will post what I find,..but I am very sure that is what it said....It ought to be easy enough to prove one way or the other..

Library? What's that? :icon17:

RiCharlie 08-19-2013 12:34 PM

Quote:

Originally Posted by DEpointfive0 (Post 2452091)
Library? What's that? :icon17:

Its a big building with books right next to the store where I buy my flash power


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