What is the true measurement of a meter?

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  • What is the true measurement of a meter?


Answer #1 | 08/02 2014 13:28
"Since 1983, the metre has been internationally defined as the length of the path travelled by light in vacuum during a time interval of 1/ 299 792 458 of a second. This definition can be realised simply and accurately using modern techniques and the speed of light is regarded to be a universal constant, making it ideal as the basis for a length standard."
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Answer #2 | 08/02 2014 12:47
The master metre exists in Paris and I believe there is also one in Washington, Bureau of Measurements most likely. I recall it being a specified decay of a certain radioactive isotoope, but don't recall the details. You may be able to find that in Wikipedia by looking up the entry for "metre". alternative spelling "meter".
Positive: 51 %

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