Used Telescopes. BMI Surplus offers a large variety of used optical instruments such as used Telescopes from the major optical telescope manufacturers such as Davidson Optronics, Meade, Takahashi Epsilon, Space Technology Laboratories, Ealing, Barnes Engineering, Richey-Chretien, Keuffel & Esser (K & E), Gaertner Scientific, Edmund, and many more. How to Make Your Own Telescope Mirror: [Fig 1] This is a large piece of glass a woman off Craigslist gave me. It was 40"x40" and 0.75" thick. Its what I decided to use to make the mirror. Cutting it into smaller sections can be difficult but scoring it with a glass cutter and tapping t... Speeds and feeds for milling acrylic
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Page 1 of 2 - Where is the Common 60-inch mirror now? - posted in Classic Telescopes: In chapter 33 of his Astronomical Scrapbook (p. 168-176), Joseph Ashbrook describes “The Five Lives of a 60-inch Reflector.” This would be the 60-inch mirror made by Andrew Common in 1886-9. The Stellafane Links Page is edited by Jay Drew of the Springfield Telescope Makers. * Member of the Springfield Telescope Makers Page last revised on Tuesday October 01, 2019 with 62 new links added and 173 dead ones purged.
Marvel quotes about loveSm a530w twrpBMI Surplus, Inc. 149 King Street Hanover, MA 02339 USA Direct: 781-871-8868 Fax: 781-871-7412 CAGE Code: 639A3. Payment options: Join our mailing list Nov 13, 2017 · University of Arizona is making gigantic mirrors for world's largest telescope. Here's how. University of Arizona has world's only lab capable of making 27-foot mirrors for what will be the world ... The telescope has four additional mirrors and a corrector lens. A 18-inch (45.7-cm) central hole in the primary mirror allows starlight to reach the Cassegrain focus (f /8.75) with a 525-inch (13.3-meter) focal length. Surplus Shed supplies surplus, used, and unused optical. electronic, and mechanical bargains for fun, hobby, education or profit. You'll find thousands of lenses, mirrors, prisms, precision optics and optical equipment such as microscopes,spectrometers, etc as well as beamsplitters, achromats, eyepieces, optical flats, mirror blanks, lens blanks, filters, and other optical and electronic stuff.
May 07, 2019 · The Multiple Mirror Telescope 40 years ago as seen from the back. Standing at the center of the telescope are (from left) Nathaniel Carleton of the Smithsonian Astrophysical Laboratory, Neville "Nick" Woolf, professor emeritus in Steward Observatory, who was acting director of the MMT Observatory at the time, and William Hoffman, professor emeritus in Steward Observatory.