astronomy
Get flash to fully experience Pearltrees
Encoder – A Program for Digital Setting Circles Using a PC Mouse. http://www.worldaccessnet.com/~dstixrud/Jon/Encoder.html
Encoder - a program for digital setting circles using a PC mouse
Making a Sturdy Wood Tripod - How To
Making a Sturdy Wood tripod out of a (flimsy / cheap / shaky) aluminium tripod. I tried to make this article as comprehensive as possible, for the newbiest of beginners I could think of, so I made it out into paragraphs so you can figure out which parts you need to read and which you can skip.
Arduino Bluetooth Digital Setting Circles for Telescope
I decided to build an Arduino digital setting circle for my mount because it's really hard to buy Tangent Instruments boxes cheaply, and the Argo Navis (the Lexus of telescope digital setting circles) is quite expensive. Besides it seemed like a cool project.Gary's Motorized Big Bino Chair
Gary's Motorized Big Binocular Chair - by Gary Honis - Detailed Construction Procedure - Page 1 of 7
Another DIY Parallelogram Binocular Mount Submitted: Wednesday, 28th March 2007 by Dennis Simmons
Another DIY Parallelogram Binocular Mount
PolHors
Toward the end of the fourteenth century there lived in England a man named Geoffrey Chaucer. He was a customs officer of the king and, because of his position, he was able to travel in England and Europe.
science::.. The Astrophysical Journal Letters
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venus transis NASA Goddard photos
NASA Herschel Science Center's Portal to the Cool Universe Press Release • nhsc2013-009 • Tuesday, March 19th, 2013
Herschel Space Observatory
astrolabe