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Celestron was the first large scale commercial manufacturer of the Schmidt-Cassegrain telescope, introducing its "C8" 8" diameter 2032 mm focal length, ƒ10 telescope in 1970. [7] The primary innovation Celestron/Tom Johnson devised was a method to produce Schmidt corrector plates using a vacuum to pull the glass blanks into a pre-shaped curve ...
The SkyScout was a handheld, battery powered device about 7.4" x 4.0" x 2.5", and weighing about 1 pound. It had a viewing port, a 3" x 1" LCD display on the side and several buttons for controlling and selecting device functions.
Binoculars or field glasses are two refracting telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Most binoculars are sized to be held using both hands, although sizes vary widely from opera glasses to large pedestal-mounted military ...
Binocular facilitation. The summation is more than twice that of a single input. Complete binocular summation. The summation is exactly twice that of a single input. Partial binocular summation. The summation is greater than that of a single input, but less than twice as large. No binocular summation. The summation is the same as a single input.
Binocular rivalry is a phenomenon of visual perception in which perception alternates between different images presented to each eye. [1] An image demonstrating binocular rivalry. If one views the image with red-cyan 3D glasses, the text will alternate between red and blue. 3D red cyan glasses are recommended to view this image correctly.
The Night Manager is a British spy thriller television serial based on the 1993 novel of the same name by John le Carré and adapted by David Farr. [1] [2] [3] The six-part first series, directed by Susanne Bier and starring Tom Hiddleston, Hugh Laurie, Olivia Colman, Tom Hollander, David Harewood and Elizabeth Debicki, began broadcasting on BBC One on 21 February 2016.
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