Polarized and Refracted Light, Optics, Photography, etc. Options

[Omega892R09]

[Split by d from:
http://pilotsfor911truth.org/forum//index....=13895&st=0]

You're gonna LOVE QED. Short and sweet ... blows apart the myth that "light travels in straight lines" (and explains what it really does)... among various other things.

Which reminds me, I need to get another polarising filter for my camera kit and another 77mm Cokin ring to replace the one whose threads were giving me a such a hard time in Scotland recently.

I recall how all the colours of the rainbow showed up when pointing a polarising filter equipped lens through those open F4k Phantom canopies on deck in whilst in Lauderdale.

Then of course there is a Mr Fresnel who I have to thank for one component in the focusing system of my cameras.

I can't resist but try and relay something I read about once - supposedly an Australian physicist (or neuro-biologist, I can't remember) by the name of Bass (I remember the name) has a theory about "consciousness". There was a little bit about this hypothesis at the end of a book I read, don't remember what book,

Don't worry Sanders you will remember which book when your brain isn't looking at it. IYSWIM

Reason for edit: Split topic, because it is incredible in its own right.

[lunk]

I noticed that the other day, rainbows must be polarized light.
Rotate a polarized filter, and the rainbow entirely disappears.

[dMz]

Have you gentlemen worked with circularly polarized light or stereo-isomers of organic chemicals?

http://en.wikipedia.org/wiki/Circular_polarization

http://en.wikipedia.org/wiki/Polarization

http://hyperphysics.phy-astr.gsu.edu/hbase...pt/polclas.html

I remember hearing an urban legend? about a worker at CERN who got his enzymes "flipped" inside a particle accelerator and he eventually wasted away. Dunno if it's true, but it certainly is interesting to ponder...

EDIT: Chirality (in chemistry):

http://en.wikipedia.org/wiki/Chirality_(chemistry)

http://chemed.chem.purdue.edu/genchem/topi...h12/isomers.php

Reason for edit: Chirality

[dMz]

How about a moonbow?

http://www.starrynightphotos.com/planet_ea...nar_rainbow.htm

http://en.wikipedia.org/wiki/Moonbow

And a rainbow photography reference (for us amateurs):

http://digital-photography-school.com/blog...raph-a-rainbow/

All the galleries I found were branded/copyright, but there were some nice photos at:

http://www.pcimagenetwork.com/rainbow/rainbow.html

[dMz]

Photo-elastic stress analysis (in that mystical "complex" realm):

http://www.arch.columbia.edu/gsap/25903/

(IMG:http://www.arch.columbia.edu/image/25903//7_Photo-elastic.jpg)

http://www.as.wvu.edu/coll03/phys/www/demo...s/optics_i6.htm

http://www.exploratorium.edu/cmp/exhibits/...s_analysis.html

http://www.stressphotonics.com/PSA/psa_pdf...ope_for_PSA.pdf

Polarized microscopy:

http://www.olympusmicro.com/primer/techniq...arizedhome.html

[Optics/photography is SO COOL!]

[dMz]

Then of course there is a Mr Fresnel who I have to thank for one component in the focusing system of my cameras.

I hope you didn't mind me splitting this O892, but it's a GREAT topic in its own right.

More on Fresnel lenses (solar concentration, etc.)

http://www.youtube.com/watch?v=7Qn2u5m0o1Y

http://en.wikipedia.org/wiki/Fresnel_lens

http://www.geocities.com/ralfsun/

This can be DANGEROUS BTW!!

[Omega892R09]

Have you gentlemen worked with circularly polarized light or stereo-isomers of organic chemicals?

No but I have been using polarising filters for many years. Polarising filters come in two basic types linear or circular. The latter must be used with beam splitters in the focus or metering mechanisms and with DSLRs.

See:

http://www.cs.mtu.edu/~shene/DigiCam/User-.../polarizer.html

My firt polariser was as described at top of that page but I now use a Cokin circular polariser which is only one layer - yes it puzzled me at first but it seemed to work but not to the same degree.

Edit: PS Surprised this got here, damned net dropped out again.

This post has been edited by Omega892R09: Jul 22 2008, 04:51 PM