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Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]
A prism sight or prismatic sight, sometimes also called prism scope or prismatic scope, is a type of telescopic sight which uses a reflective prism for its image-erecting system, instead of the series of relay lenses found in traditional telescopic sights. The use of prisms makes it possible to construct a shorter and lighter sight, or with an ...
Aadhaar ( Hindi: आधार, lit. 'base, foundation'; sometimes informally called UIDAI ID or UIDAI Number) [7] is a 12-digit unique identity number that can be obtained voluntarily by all residents of India, based on their biometrics (10 finger prints, 2 iris prints and photo of face) and demographic data. [8] The data is collected by the ...
A 164-page treatise on this AGI is nigh and superintelligence-ain’t-far-behind argument was published last month by Leopold Aschenbrenner, entitled “Situational Awareness.”. Aschenbrenner is ...
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A reflex finder is a viewfinder system with a mirror placed behind a lens. The light passing through the lens is reflected by the mirror to a focusing screen, usually ground glass. The image formed on this ground glass can be observed directly, giving a waist-level reflex finder, or through a redressing optical device (set of mirrors or prism ...
NEW YORK CITY (Reuters) -U.S. cities are breaking decades-old temperature records this week as a heat wave stretches from central to eastern portions of the country, the National Weather Service ...
By June 1, according to new campaign finance filings released Thursday, Trump's campaign bank account had ballooned to $116.6 million and overtaken Biden’s $91.6 million. The surge capped a ...