Word: reflector
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Dates: during 1900-1909
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...sixty-inch reflector which is now being mounted at the Observatory, will when completed, be one of the three largest and most powerful in existence. It will be used for extremely delicate work on faint stars and nebulae, and will be under the complete electrical control of one operator. The reflector, which is of tremendous weight, will rest on a fluid to make manipulation easier...
...powerful two-foot reflector is also being mounted, to be used principally in photographing an interesting class of stars known as the Algol-variables...
...university, is now being set up at the Astronomical Observatory. A two-story building, 15 feet wide and 27 feet long, has been erected to enclose it. The lower floor contains a silvering room; in the upper room, in which the observer sits, is located the eyepiece of the reflector. The telescope will be adjusted by electricity, and in order to secure a delicate balance a large part of its weight will be floated in a concrete tank, constructed at a cost...