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Grinding Metre-Scale Mirror Segments for the E-ELT - CORE

The next generation of ground based telescopes require many hundreds of metre scale off-axis.45 metre scale Zerodur mirror segment for the European Extremely Large stiff and well damped grinding machines such as the Tetraform.

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Fixed post mirror grinder advice - DIY Astronomer - Stargazers Lounge

4 Mar 20 Hi AllWeve been having some idle discussions about grinding I hope this grinding machine goes better than tonight& 39;s scoping did. As a matter of interest, is there another use for parabolic mirrors besides telesc

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ENDOSCOPES AND INSTRUMENTS FOR ENT - Karl Storz

All data relevant for safe use, such as viewing direction, sizes and diameters, or notes regarding sterilization of telescopes, are applied to the instruments, have been formulated according to KARL STORZ drilling/grinding systems dur

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History of the telescope - Wikipedia

The history of the telescope can be traced to before the invention of the earliest known The era of radio telescopes along with radio astronomy was born with Karl Guthe It is in a patent filed by Middelburg spectacle-maker Hans

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Constructing grinding and polishing machines - NASA/ADS

Constructing grinding and polishing machines John R. Nichol and John Wall if the pastime is to be that of a telescope maker, rather than that of an observer, machine The machine built by Wall can be used on all mirror or lens size

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Who Invented the Telescope? Space

2 Dec 20 7 Several men laid claim to inventing the telescope, but the credit usually that as glassmaking and lens-grinding techniques improved in the The first person to apply for a patent for a telescope was Dutch eyeglass m

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telescopes and the popularization of astronomy in the twentieth

such firms as Alvan Clark and Sons, maker of telescopes for professional astronomical 9 – The basic motions involved in lens and mirror grinding and polishing. “Steinheil, Karl August”, Dictionary of Scientific Biography, Volume

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How to grind a mirror for a telescope - YouTube

9 Aug 20 How to grind a mirror blank into the well-figured basis for a Dobsonian telescope. How to grind the glass, how to carry out a focus test, how to

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Using the Fixed-Post Grinding Machine for Rough Grinding an

6 Feb 20 4 Gordon Waite sets up his fixed-post mirror grinding machine to begin rough grinding on an " f/4.3 telescope mirror. He uses a grinding tool

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