Natural Science Forum / Physics / Optics / February 2010

So, was your family a bunch of brewers or drinkers or artists, before
coming to America?
See 2/3 of the way down here, under food uses...
http://en.wikipedia.org/wiki/Gold_leaf

I was looking through a copy of "The Phosphor Handbook" a while back
and I noted a few  of the phosphor mixes that the book tells you how
to cook up had IR quenching as a property.
For 750-1100 nm or So, Simple ZnS:CU tends to quench when hit by near

So, was your family a bunch of brewers or drinkers or artists, before
coming to America?
See 2/3 of the way down here, under food uses...
http://en.wikipedia.org/wiki/Gold_leaf

I'm looking for a rotary 1" optics holder (specifically for polarizers/
waveplates) that fits into a C-mount tube assembly or onto a C-mount
camera. Would someone point me towards a vendor if such an item
exists? Thanks!

Not Quite Everything for a Theory of Everything
(click link)
http://www.amperefitz.com/not.quite.everything.for.a.theory.of.everything.htm
Enjoy,

I have a newbie question. I would like to find out what is the lens
equation of the following optical setup. Specifically I would like to
find out what is the effective focal length of such a setup.
In a very simple periscope I have 2 mirrors tilted at 45 degrees. Now

As title says, 8mm dia, length 94mm - 100mm minimum, it can be a few
mm more and around 1.1% nd.
Burned coatings or no coatings at all or scratched ends are OK, for
the right price and as long as the bulk of the crystal is clear/ no

It would be greatly appreciated if this announcement could be
shared with individuals whose research interests include
scientific computing.  Thanks.
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It would be greatly appreciated if this announcement could be
shared with individuals whose research interests include
modeling, simulation, and/or visualization methods. Thanks.
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http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=130368267190
Excellent DIY laser controller opportunity, at excellent price. 5 of them for
sale currently.
These are not mine, this is not spam, I have no clue who the seller is. I'm

Loaded system: Includes Schottky FESEM with Gemini column, specimen
interlock, EDAX Apollo 40 SDD EDS, TSL EBSD, Denton Desk IV TSC fine
grain sputter coater, Robinson 8.2 scintillator motorized BSE with
joystick control unit, STEM, VPSE detector, CL in high vacuum mode,

It would be highly appreciated if you could share this announcement
with your colleagues, students and individuals whose research is in
computer science, computer engineering, information science and
related areas.

I own an old research microscope with trinocular tube and phase contrast
equipment. For some hobby research projects I would like to document my
work.
I tried to fit an analog SLR camera to the microscope but am very

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