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The backbone of any electric gate, whether automatic or not, is the electric gate motor, two distinct motor types exist hydraulic, or electromechanical. This is the electric device which actually enables the electric gate to open and close without having to manually push the gate.
The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.
The pages in this category are about books which primarily deal with NASA's Apollo Program. Pages in category "Books about the Apollo program" The following 9 pages are in this category, out of 9 total.
The docking mechanism of the Apollo was a "probe and drogue" system designed to allow the Apollo Command/Service Module (CSM) to dock with the Apollo Lunar Module.The same system was later used for the Skylab 2, Skylab 3 and Skylab 4 CSMs to dock with the Skylab space station, and the Apollo–Soyuz Test Project CSM to dock with a Docking Module adapter which allowed docking with the Soyuz 19 ...
Apollo 13 was slated to be the third landing on the moon after Apollo 8 (1968) and Apollo 12 (1969). Launched on April 11, 1970, the crew was led by commander Lovell, along with command module ...
Even while Apollo was progressing Mueller and others were pushing for an aggressive post-Apollo program. He established the Apollo Applications Office in 1965. The Applications were extensive, involving a crewed lunar base , an Earth-orbiting space station, Apollo telescope, a Grand Tour of the Outer Solar System, and the original "Voyager ...
First on the Moon: A Voyage with Neil Armstrong, Michael Collins and Edwin E. Aldrin, Jr. (ISBN 0316051608) is a 1970 book by the crew of the Apollo 11 Moon landing (Neil Armstrong, Michael Collins, Buzz Aldrin) in collaboration with Gene Farmer and Dora Jane Hamblin. Epilogue by Arthur C. Clarke in the first edition.
Rocco Anthony Petrone (March 31, 1926 – August 24, 2006) was an American mechanical engineer, U.S. Army officer and NASA official. He served as director of launch operations at NASA's Kennedy Space Center (KSC) from 1966 to 1969, as Apollo program director at NASA Headquarters from 1969 to 1973, as third director of NASA's Marshall Space Flight Center from 1973 to 1974, [2] and as NASA ...