Natural Science Forum / Physics / Optics / July 2009

     Hand-held Laser Power Meter:
     Ihave a 6 month old laser power meter for sale - $250 shipped within
USA
     E-mail me for photos or more information.

I've bought a 808nm laser diode in 9mm package. It's said to emit 1W
at 1500mA. But strange is that there are only two pins behind it.
Do anyone know how to determine which pin will connect to positive (+)
without damaging it. It's rather expensive. I saw that one pin connect

I know the recommendation is always to buy a used big 4, but does anyone
have any experience with the primo star? All I can find on the web is zeiss
promo material and that it's manufactured by motic.

Hey all,
I've encountered a rather frustrating problem.  Perhaps you may have
some suggestions?
Here is the problem as described by the lab manager: note, I've deleted

Not only does plastic make them look like flimsy junk (I can just
imagine  the optical quality) but it makes the product FAR TOO LARGE
thanks to plastic's lack of strength and the need for thick moldings.
Examples:

If you haven't already heard of LASORB, I wanted to invite you all to
take a look at the LASORB web site, which can be found at www.lasorb.com
LASORB is a small electronic component that is connected directly
across the laser diode. Once in place, LASORB is able to protect the

Is there anyone who knows what are the highest quantum efficiencies
reached by current photon detectors? Is there a academic references/
listings in this regard?
Thanks,

Hi, does anyone know if this turret will fit my Olympus CHC
microscope?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=360172684668&ssPageName=ADM
E:X:RTQ:GB:1123
All help is appreciated, thank, Mario Reget

Some Basic Islamic Beliefs
Please forgive me for any disturbance, but I have an important subject
to address to you regarding FAITH, and I Don’t intend to overload your
email with unnecessary messages…

Anyone know what this was?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260443393393
Scrim

Social Engineering by Secret US Government with Sonic Lasers
Website:
http://www.hightechharassment.com
A secret United States government has been in place for the last

I argue we can disrupt unitary evolution in certain cases, even before a
true measurement occurs.  The proposed example is where one orthogonal
state of a co-evolving pair (like, |x> and |y> polarized light together
in a system) is altered by "null measurement", i.e. a possible

For the older Leitz types there is plenty of documentation to be found on
the web, but for my newer Ergolux I can't find a thing.
Does anyone know if/where such a manual can be found?

Microsoft ad for "Bing" makes reference to Robert Hooke discovering
cell walls in cork!

Hi,I have recently received two microscopes both with the same fault -
a semicircle of muck or stain on the bottom left of the field of view.
This remains whatever combination of lenses I am using and will alter
in density when I alter illumination.