Viewing sign #2577 for Meter

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Video info

  • Topic: Meter
  • Title: Meter
  • Post date: 8/14/2012
  • Posted by: rachel
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  • Description: The metre (meter in the US), symbol m, is the base unit of length in the International System of Units (SI). Originally intended to be one ten-millionth of the distance from the Earth's equator to the North Pole (at sea level), its definition has been periodically refined to reflect growing knowledge of metrology. Since 1983, it 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".[1] This sign video was contributed by users of the ASL-STEM Forum: http://aslstem.cs.washington.edu/