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What are the three intermediate definitions of the meter between 1793 and 1983?
Wiki User
∙ 16y ago
The meter was defined in 1792 as 1/10,000,000 of the distance between the North Pole and the equator on a line running through Paris, France. The standard length of a meter was later changed to be the distance between two fine lines engraved on a bar of platinum and iridium alloy. The next definition was based on the wavelength of light emitted by an isotope of the element krypton. The present definition, in use since 1983, is the distance light travels in a vacuum during approximately one three hundred millionths of a second (1/299,792,458 sec).
Wiki User
∙ 16y ago
The three intermediate definitions of the meter between 1793 and 1983 were the archaic metre (1795), the provisional metre (1799), and the legal metre (1889). These definitions went through various changes and refinements to establish a standard unit of length based on physical constants.
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When installing lights with 2-way and intermediate switching control the intermediate switch must be connected to the?
The intermediate switch must be connected to the traveller wires that come from the 2-way switches. These traveller wires are used to carry the electrical signal between the switches to control the lights.
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How can an intermediate switch be used with a 2-way switch system to control a light from four floors?
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