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The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of 1 299 792 458 of a second, where the second is defined by a hyperfine transition frequency of caesium.
- Orders of Magnitude (Length)
Factor () Multiple Value Item 0 0 0 Singularity: 10 −35: 1...
- Meter (Disambiguation)
Meter or metre is a unit of measurement of length in the...
- History of the metre
History of the metre. An early definition of the metre was...
- Orders of Magnitude (Length)
A metre (US spelling, meter) is the basic unit of length in the SI measurement system. The symbol for the metre is m. The first meaning (in the French Revolution) was one ten-millionth of the distance between the Earth 's equator and the North Pole along the Paris meridian. [1] The metre is now defined as the distance light travels in a vacuum ...
The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of 1 299 792 458 of a second, where the second is defined by a hyperfine transition frequency of caesium.
A metre (US spelling, meter) is the basic unit of length in the SI measurement system. The symbol for the metre is m. The first meaning (in the French Revolution) was one ten-millionth of the distance between the Earth 's equator and the North Pole along the Paris meridian. The metre is now defined as the distance light travels in a vacuum in 1 ...
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METRE meaning: 1. a unit of measurement equal to 100 centimetres: 2. the regular arrangement of syllables in…. Learn more.
