Natural Science Forum / Physics / Optics / March 2005

We have a Reichert microscope that we are looking to sell YESTERDAY!!!
Other equipment is for sale as well.
Our website has photos online at:
http://www.tnlis.com/mall/scientific_equipment.htm

Does anyone know what's involved in replacing the origianl mercury
batteries in the UDT 40x OptoMeter?  The 12.6V mercury batteries are
no longer available and I heard of others replacing them with 9V
transistor radio batteries.

I did it !!!
It works !!!
I now have a full color laser projector system made from a $7 sound card !!!
Even better news is that there are some new sound cards that just came out

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=25280&item=7502074291
With a feedback rating of 0, how can you go wrong!  Buy-It-Now for
only $425,000.00. :)
--- sam | Sci.Electronics.Repair FAQ Mirror: http://repairfaq.ece.drexel.edu/ 

     Does anyone know of a good source in the UK for (not too
expensive) linear xenon flash lamps? Done some serious goooogling
tonight, and  mostly all im turning up is low energy strobe tubes!
 I`m wanting a suitable lamp (or multiple small lamps) to pump a

Does anyone make UV laser pointers?  I'm thinking it would be cool if you
could have a sinister beam that can make some objects suddenly fluoresce,
but you can't see the dot trailing across the view.

Anybody know what is the best glue I can use for (re)mounting
MCA/KTP/YAG/DPM and so on to a brass underground?
Maybe anyone know what the manufactures are using? I saw inside my pointer:
Green 'jelly' glue (this glue has a rare chemical smell!) , and water clear

Hey, I've recently bought Saxby's book, 'Practical Holgraphy'. i'm
reading through it. one thing i've noticed however, is that it doesn't
cover (to much extent) the types of holograms that seem to be most
commonly used in counterfeit prevention.

Are there IR laser pointers powerful enough that you can feel a spot of
heat?  That would make a pretty sinister prank weapon.  ;-)

I've found some of the fiber optic used for fiber optics communication.
I'm trying to use it to do some point sources for testing optics and am
having troubles getting the light through the fiber.  I've done the cleaving
the way that several places on the web describe and still no ...

I found this program and like most programs it assumes the user has a
modicum of understanding in its use, which I don't. Could someone take
the time to enlighten me?
Thanks

Is there a way to dissolve cured M-bond 610?
I would like to take my thin sample off the TEM grid.
Thanks for suggestions.
Tomas

As a (sort of ) follow-up to my attentuation of lights thread, I
thought I'd ask another question. I know that the light of a setting
sun appears red/orange, and I was wondering if the same effect can be
seen in other lights, such as incandescent lightbulbs at a distance?

http://www.want-to-be-sure.blogspot.com << Click On Link