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A 6-inch (15 cm) Newtonian reflector built by a school student on display at Stellafane Although the types of telescopes that amateurs build vary widely, including Refractors, Schmidt–Cassegrains and Maksutovs, the most popular telescope design is the Newtonian reflector, [3] described by Russell W. Porter as "The Poor Man's Telescope".
The Crayford focuser was initially demonstrated to the Crayford Manor House Astronomical Society, and then descriptions were published in The Journal of the British Astronomical Association (February 1971), [1] Model Engineer magazine (May 1972) [2] (with full constructional plans), and Sky & Telescope magazine (September 1972). John Wall ...
They build their telescopes for the enjoyment of the hobby, or so they can make a personal contribution to the field of astronomy. Custom made dune buggy Dune buggy - popular method of building a dune buggy involves construction of a vehicle frame from steel tubing formed and welded together.
The A. C. Gilbert Company was an American toy company, once one of the largest in the world. Gilbert originated the Erector Set, which is a construction toy similar to Meccano in the rest of the world, and made chemistry sets, microscope kits, and a line of inexpensive reflector telescopes.
Other kits would provide parts to build items such as a small spectrograph, telescope, or pinhole camera. In addition to the monthly subscription, some kits were available for individual purchase, such as a "soilless gardening" unit which provided seeds, plant food, and instructions in hydroponics . [ 4 ]
Edmund Scientific Corporation, based in Barrington, New Jersey, was founded in 1942 as a retailer of surplus optical parts like lenses.It later branched out into complete systems like telescopes and microscopes, and in the 1960s, a wide variety of science toys and kits.