Natural Science Forum / Physics / Optics / September 2006

http://www.akrobiz.com/speakers/new/
This is one of the projects I have had in the works for quite some time now.
I've had a hard time working on them because my ankle has been really
screwed up since I had a surgery on it in April.

Is there a listing some where that  have an appropriate adapter that will
fit on a 38mm inside diameter trinocular head?  I know the various Nikon
Coolpix's have the threaded lense, but frankly I don't want to put as money
as they cost into a camera that old.

100 Years of E=mc2
https://www.novapublishers.com/catalog/product_info.php?cPath=23_48_324&products
_id=4554
1. What is E=mc2?  What is its importance?
E=mc2 is the most wonderful and significant equation is physics.  In

Ebay sellers are mostly scammers. They lie too much. I simply won't pay
$5k-10k to some yoyo that most likely lied about the splicer or simply
lacks knowledge of splicers or fiber optics. Many websites sell fiber
splicers but who to trust for "used" equipment, "refurbished" or

I got around to powering up the Versapulse 532,755,1064 q switched laser (no
password, thank goodness!) and the darn thing works!  I was looking foward
to taking it apart :-/
Very nice selection menu.  The qswitched 532nm 755nm and 1064nm can be

Subject: PAYPAL MAGIC!!!Subject: PAYPAL MAGIC!!!
From: "Easy" <Easy@Easy.com>
Date: Fri, 25 Aug 2006 14:16:06 GMT
Message-ID: <GCDHg.27950$ph.14955@tornado.texas.rr.com>

I want to know the best way to collimate a laser diode .
Where I can found some information about this . ans if is posible to
collimate a laser diode of
Perpendicular  45·( beam divergence angle )   single mode  and

My question is very basic and I'm sorry if it has
already been answered here but I don't find any relevant
explication in the Web.
It is said that the maximum throughput of a system (lets say a

This may seem like a basic question, but does one connect photodiodes
in series or parallel for proper operation? I would like to basically
enlarge the light detection area of my circuit and I do not have space
for a lens, therefore, I just decided to use two photodiodes. Where the

When light energy is emitted, Mass increases,: Einstein’s Sep.1905
derivation.
  It is not consistent prediction from Einstein’s Sep 1905
derivation.

I have multiple data files with the data format "x, f(x)". I need to
fit each data file to a Gaussian. I know how to do it one file at a
time, but I have more than 100 data files. Is there any easier (re:
faster) way to fit all my data files?

What camera shall I buy for small photos, but I need auto-focus and
high resolution?
Best regards,
Jack

Does anybody have some experience with the RGB laser module form
Sanctitylaser?
It is an all in one module, so you don't have to align Red, Green and
Blue lasers.

Several days ago I asked about how to couple laser into a waveguide, it
turns out that I'd better make a theoretical estimate first.
My waveguide is made on a silicon chip, a long bar geometrically. For
the cross section,  the width is 10 micrometers, and height is

I've done a search and found that the topic of optical heterodyning has been
covered, but I couldn't find the information I'm looking for.  Would it be
possible to build a VERY simple DIY heterodyning system to act as an
infrared viewer?  The following setup for example:  light ...