Brashear telescope

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August undefined, 2024

WebNov 24, 2024 · John Alfred Brashear, an American optician and telescope maker, was born Nov. 24, 1840. A machinist and millwright by trade, he taught himself to make … WebJun 14, 2000 · (Joyce Mendelsohn, Post-Gazette) Today's Brashear still designs, builds and maintains telescopes for astronomical research. In 1998, it built the world's largest telescope mirror for the...

A TRAVELING TELESCOPE FEAST - Classic Telescopes - Cloudy Nights

WebA cratera satélite Brashear P fica a sul-sudoeste. Esta formação é uma cratera muito desgastada com características que foram quase completamente desgastadas pelos impactos subsequentes. Conectada à borda sul desta cratera, há uma série de vales e crateras de impacto que levam algumas centenas de quilômetros para o leste. Crateras ... http://www.astronomy.com/year-of-pluto/2015/05/percival-lowells-three-early-searches-for-planet-x infection control for nursing homes

Great telescopes of the past Astronomy.com

WebThe John Brashear Company was established in 1881 and the Goerz Optical Company in 1905. The descendant companies of these two pioneers were purchased in 1974 by a Swiss corporation, Contraves A.G., and united to form Contraves Goerz Corporation. Its name later changed to Contraves Inc. WebBrashear telescope and test range tracking mounts and systems integrate precision optical tracking with accurate positioning systems. Brashear range integration capabilities … infection control for water containers

Pittsburgh company takes dead aim, makes parts that guide …

WebAmong Brashear’s astronomical contributions were an improved and soon widely used process for silvering glass mirrors; the concave metal mirrors on which Henry A. Rowland ruled diffraction gratings; spectroscopes for use with the large refractors at the Allegheny, Lick, Princeton, and Yerkes observatories; George Ellery Hale ’s first … WebMar 10, 2014 · John Brashear (1840-1920), a renowned Pennsylvanian optician and instrument maker, made some highly sought after telescope lenses — the largest being the 30‐inch refractor of the Allegheny Observatory in Pennsylvania. Brashear completed the 18‐inch (45‐cm) diameter, 8‐metre focal length ‘achromatic doublet’ in the early 1890s. infection control legislation nhsWebAug 15, 2024 · This telescope, located at the Chabot Space & Science Center in Oakland, California, is the largest refractor in the western U.S. regularly open to the public. Mike … infection control in cssd

"WebMay 12, 2011 · The Novack Telescope - This is a 6" Brashear in remarkably good shape. The objective lens is outstanding; no fungus, no scratches of any kind. The lens cell is also in perfect shape and all collimation screws turn easily. Focal length is about 90" or f/15. The original postage-stamp lens spacers (used by Brashear) are still in place. " - Brashear telescope

Brashear telescope

WebBrashear Ground Sensors & Payloads Services Electro-Optical/Infrared Optical Tracking and Sensors (+2) Kineto Tracking Mount (KTM) A KTM may be configured for “manned” or “unmanned” operation and it is designed to track fast moving objects very precisely while providing time, space and position information (TSPI) as required by mission operators. WebBrashear telescope and test range tracking mounts and systems integrate precision optical tracking with accurate positioning systems. Brashear range integration capabilities enable the latest target sensing and data recording techniques with reliable and durable mounts.

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WebThe observatory was founded on February 15, 1859, in the city of Allegheny, Pennsylvania (incorporated into the City of Pittsburgh in 1907) by a group of wealthy industrialists calling themselves the Allegheny Telescope Association. WebThe John A. Brashear House and Factory in the Perry South neighborhood of Pittsburgh, Pennsylvania, was built in 1886. ... Made from brass and roughly the size of a dictionary, the box was later opened by a member of the Antique Telescope Society, noting that the contents included plans and blueprints of Brashear's factory, a photograph of ...

WebMay 5, 2024 · The lens is a Brashear (now L3) SR 150 lens. Focal length 150" - 3810 mm Aperture 15.4" - 391 mm. This is a Cassegrain-type lens. The lenses are installed on an … WebThe Brashear Telescope is one of the world’s most famous Victorian telescopes. The 18-inch refractor was created in 1894 by renowned Pennsylvanian Optician, John Brashear, …

WebBrashear himself designed and constructed the thirty-inch Thaw Memorial Refractor, which was installed in 1914. Used for photographic astrometry, which precisely measures the … WebJohn and Phoebe Stewart Brashear, September 24, 1862. Born in 1840 in a stone tavern at Sixth and Market Streets in Brownsville, Pennsylvania, John Brashear was nine when his grandfather took him to gaze at Saturn through the lens of a traveling telescope exhibit. Brashear then absorbed every science and astronomy text he could locate.

WebThe telescope comes with two celestial eyepieces and one terrestrial eyepiece mounted on a Brashear Alt-azimuth mount and adjustable tripod as supplied by the factory. Most …

WebAstronomer, Educator, and Maker of Telescopes and Precise Scientific Instruments Dr. John A. Brashear (1840 to 1920) From the position of a millwright in a steel mill on Pittsburgh's South Side, with little formal education, John A. Brashear became one of the most successful producers of telescopes and precision scientific infection control hazardsWebMar 11, 2024 · The Brashear Telescope is a masterpiece of the Victorian age technology. It stands 9 m tall with a refracting lens of 18 inches (45.72 cm) across. And it is getting a new home in Tekapo, New Zealand. The Brashear Telescope was built in 1894. infection control kitchen audit toolWebMaker - Warner & Swasey / John Brashear, 1914 Aperture – 20 inches Focal Length – 28 feet (8.5 m) Mount – German equatorial Cost – $20,000 Usage Intent – popular and educational use, formerly used for … infection control measures for hivWebFeb 18, 2024 · Visit Providence’s 1891 observatory The antique space telescope operates the same way it did when it was first built By Carlos R. Muñoz Globe Staff,Updated February 18, 2024, 10:00 a.m. Ladd... infection control medication administrationWebBrashear was a self-taught optician whose service to astronomy began in 1876 when he began to make astronomical telescopes. Over the years of his active career Brashear not only made both of the larger telescopes used at the Allegheny Observatory, but came to be recognized as one of the best telescope makers of his day. infection control monthly summary report formWebThis specialized stereo microscope held the photographic plates side-by-side. A mechanical shutter allowed the observer to alternately see first one image and then the other while looking through a microscope eyepiece. infection control observation toolsWebApr 3, 2012 · The basement Brashear brass tube was originally painted black which was removed during restoration. The rest of the telescope looks original. We've been trying to discover more information or pictures … infection control nottingham city