What is the current basis of the meter (1983)?

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asked May 25, 2018 203k views

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Glostas · Answer 1 · 2018-05-31T18:59:58+0000

The meter is defined as the distance that light travels in 1/299 792 458 of a second in a vacuum. This basis is accurate because the speed of light is constant in a vacuum, by Einstein's theory of relativity.

What is the current basis of the meter (1983)?

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