Word: instrument
(lookup in dictionary)
(lookup stats)
Dates: during 1900-1909
Sort By: most recent first
(reverse)
...University, has been received and is now being set up in the eastern part of the Observatory grounds, near Bond street. The telescope was made in 1888 by the late A. A. Common, and set up at Ealing, England. On account of the great weight of the instrument, about 19 tons, a peculiar mounting has been necessary. A new tube 21 feet long with a 60-inch aperture is being made and much of the old clock work and appliances will be changed for new ones operated by electricity. The reflecting lens is about 6 inches thick and weighs, with...
...Observatory, through an anonymous gift of $20,000 received in 1902, has added to its equipment what is regarded as the largest efficient telescope in the world, a five-foot aperture reflecting instrument constructed by the English astronomer, the late A. A. Common. Professor E. C. Pickering conducted the negotiations for the purchase of the telescope during the summer, and preparations are now being made for packing and transferring it to Cambridge. The mirrors will be sent first for experimental purposes previous to setting up the whole instrument. An open space in the eastern part of the Observatory grounds near...
...University Observatory recently purchased, with part of an anonymous gift, two 25-inch reflecting telescopes, one for use on the northern, and the other on the southern, stars. The mountings for the one to be set up in Cambridge are expected shortly, and as soon as they arrive the instrument will be mounted in the yard of the Observatory. The other telescope will be installed at the southern station of the Observatory in Arequipa, Peru. The telescopes are to be used ehiedy for photographic work and will be more powerful than any other now used in the Observatory for this...
...branch Observatory at Arequipa, Peru, is now in process of construction and will probably be ready for use next fall. The telescope is to be used chiefly for photographic work and will be more powerful than any other now used at the Observatory for this purpose. When the Instrument is completed it will be temporally mounted in the yard of the Observatory. Later it will be sent to the branch station in Peru...
...United States Civil Service Commission announces an examination to be held in Boston, February 3-4, 1903, for the position of Electrical Instrument Maker, at a salary...