If this is the easy part of making a complete reflector telescope from a single piece of glass, we can’t wait to get a load of the hard part! A little backstory may be in order for those who don’t ...
ACCORDING to a Science Service report, the 200 in. mirror of the new Californian telescope will be made of a sort of pyrex glass and will be poured very shortly. It was at one time proposed to make ...
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