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Alexander François Selligue (1784-1845) was a French engineer. His name was in fact Alexandre François Gilles, but he used Selligue as an anagram of Gilles. In 1832, he together with David Blum patented an application of shale oil for direct illumination. In 1838, he patented "the employment of mineral oils for lighting".
Though Alexander Selligue is often mistakenly credited with the invention, he did invent an improved rangefinder with fixed lenses in 1821 and is responsible for coining the term. [3] [4] In 1881, the British Royal Artillery adopted the depression range finder, which had been developed by Captain H.S.S. Watkin for use by coastal artillery. It ...
A stereoscopic rangefinder or stereoscopic telemeter [1] is an optical device that measures distance from the observer to a target, using the observer's capability of binocular vision. It looks similar to a coincidence rangefinder , which uses different principles and has only one eyepiece.
A notable improvement over the M6 was the modification of the rangefinder to eliminate flare. The Leicavit M is an accessory introduced with the new MP, allowing trigger wind with the right hand at speeds up to 2–2.5 frame/s. The MP is available in chrome and black paint and with viewfinders of .58, .72 and .85 magnification.
PARIS (Reuters) -Iran's acceleration in its enrichment of uranium to close to bomb grade is "extremely serious", has no civilian justification and contradicts Tehran's assertions on wanting ...
The Detroit Lions have a seemingly endless bucket of trick plays to pick from. Earlier this season, they ran a hook-and-ladder play to Penei Sewell, their fantastic 335-pound left tackle.
Eyepiece image of a naval rangefinder, showing the displaced image when not yet adjusted for range. The coincidence rangefinder uses a single eyepiece. Light from the target enters the rangefinder through two windows located at either end of the instrument. At either side the incident beam is reflected to the center of the optical bar by a ...
This chicken Parmesan soup combines the rich flavors of a traditional chicken Parm—juicy seasoned chicken, tangy marinara sauce and savory Parmesan cheese—with the warmth and comfort of a soup.
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