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John Lyon Burnside III (November 2, 1916 – September 14, 2008) was an American inventor and gay rights activist, known for inventing the teleidoscope, darkfield kaleidoscope, and the Symmetricon. [1]
A toy kaleidoscope. A kaleidoscope (/ k ə ˈ l aɪ d ə s k oʊ p /) is an optical instrument with two or more reflecting surfaces (or mirrors) tilted to each other at an angle, so that one or more (parts of) objects on one end of these mirrors are shown as a symmetrical pattern when viewed from the other end, due to repeated reflection.
A teleidoscope is a kind of kaleidoscope, with a lens and an open view, so it can be used to form kaleidoscopic patterns from objects outside the instrument, rather than from items installed as part of it. Invented by John Lyon Burnside III [1] and Harry Hay, the patent was filed in 1970 and granted in 1972. [2] A large teleidoscope in a public ...
He also invented the stereoscopic camera, [6] [7] two types of polarimeters, [8] the polyzonal lens, the lighthouse illuminator, [9] and the kaleidoscope. Brewster was a devout Presbyterian and marched arm-in-arm with his brother during the events of the Disruption of 1843 , which led to the formation of the Free Church of Scotland . [ 10 ]
The kaleidophone was invented by Charles Wheatstone, who published an account of the device in 1827. [1] The name "kaleidophone" was derived from the kaleidoscope, an optical toy invented in 1817 by David Brewster. [citation needed] Wheatstone's photometer was probably suggested by this appliance. The photometer enables two lights to be ...
Notes on Hans Lippershey's unsuccessful telescope patent in 1608. The first record of a telescope comes from the Netherlands in 1608. It is in a patent filed by Middelburg spectacle-maker Hans Lippershey with the States General of the Netherlands on 2 October 1608 for his instrument "for seeing things far away as if they were nearby." [12] A few weeks later another Dutch instrument-maker ...
With the “Midwest Princess” still being on the rise, and no end to that ascent being anywhere in sight, the story behind Chappell Roan’s star-making debut album got a deeper dive in downtown ...
British mathematician Charles Babbage recalled in 1864 that the thaumatrope was invented by the geologist William Henry Fitton. Babbage had told Fitton how the astronomer John Herschel had challenged him to show both sides of a shilling at once. Babbage held the coin in front of a mirror, but Herschel showed how both sides were visible when the ...