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An optical telegraph is a line of stations, typically towers, for the purpose of conveying textual information by means of visual signals (a form of optical communication ). There are two main types of such systems; the semaphore telegraph which uses pivoted indicator arms and conveys information according to the direction the indicators point ...
The Hale Telescope is a 200-inch (5.1 m), f/ 3.3 reflecting telescope at the Palomar Observatory in San Diego County, California, US, named after astronomer George Ellery Hale. With funding from the Rockefeller Foundation in 1928, he orchestrated the planning, design, and construction of the observatory, but with the project ending up taking 20 ...
Thesis. Experimental investigations of atomic nitrogen recombination (1964) George Robert Carruthers (October 1, 1939 – December 26, 2020) [ 1][ 2] was an African American space physicist and engineer. Carruthers perfected a compact and very powerful ultraviolet camera/spectrograph for NASA to use when it launched Apollo 16 in 1972.
Citation: "for making communication at optical frequencies practical by discovering, inventing, and developing the material, techniques and configurations for glass fibre waveguides and, in particular, for recognizing and proving by careful measurements in bulk glasses that silicon glass could provide the requisite low optical loss needed for a ...
During the 19th century, scientist-writers such as Michel Eugène Chevreul, Ogden Rood and David Sutter wrote treatises on colour, optical effects and perception. They adapted the scientific research of Hermann von Helmholtz and Isaac Newton into a form accessible to laypeople. [28] Artists followed new discoveries in perception with great ...
G. Michael Morris was president of the Optical Society of America in 2002. [1] Morris received his B.S. degree with special distinction in engineering physics from the University of Oklahoma, and his M.S. and Ph.D. degrees in electrical engineering from the California Institute of Technology . From 1979 to 1982, Morris was a scientist in optics ...