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In 1923 Italian physicist Vasco Ronchi published a description of the eponymous Ronchi test, [1] [2] which is a variation of the Foucault knife-edge test [3] [4] and which uses simple equipment to test the quality of optics, especially concave mirrors. [5] [6]. A "Ronchi tester" consists of: A light source; A diffuser; A Ronchi grating
The hamadryas baboon is one primate species that fails the mirror test.. The mirror test—sometimes called the mark test, mirror self-recognition (MSR) test, red spot technique, or rouge test—is a behavioral technique developed in 1970 by American psychologist Gordon Gallup Jr. as an attempt to determine whether an animal possesses the ability of visual self-recognition. [1]
Foucault test setup to measure a mirror. The Foucault knife-edge test is an optical test to accurately measure the shape of concave curved mirrors. It is commonly used by amateur telescope makers for figuring primary mirrors in reflecting telescopes. It uses a relatively simple, inexpensive apparatus compared to other testing techniques.
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This led to the tandem mirror concept, and a redesign as MFTF-B, with the original mirror becoming one end of a much larger machine. To test the new concept, a smaller machine that could be rapidly built was constructed, Tandem Mirror Experiment, or TMX. Construction of MFTF and TMX began in 1977 and TMX began operations in 1979.
Trinity_test.ogv (Ogg multiplexed audio/video file, Theora/Vorbis, length 13 s, 321 × 240 pixels, 649 kbps overall, file size: 1,018 KB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
[5] With the formation of Project Sherwood in 1951, Post began the development of a small device to test the mirror configuration. This consisted of a linear pyrex tube with magnets around the outside. The magnets were arranged in two sets, one set of small magnets spaced evenly along the length of the tube, and another pair of much larger ...
5R may refer to : . Yaesu VX-5R, an ultra-compact amateur radio transceiver; IRS Aero IATA designator; Karthago Airlines IATA designator; Madagascar aircraft registration code; A standard consumer print size for photographs.