itsborken
Headphoneus Supremus
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- May 22, 2007
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Quote:
The metre is the length of the path travelled by light in vacuum during a time interval of 1⁄299,792,458 of a second.
Oh dang, there's another of those pesky fractions again with a completely fudged number to make it equal to the agreed upon meter based on earth distances. Oh, and seconds are derived from a rotation of the earth, another nice arbitrary number rooted in nature on our planet; hardly a universal constant. Another planetary body's measurements would most likely be completely different.
Originally Posted by DanielCox /img/forum/go_quote.gif A lot of SI units are based on natural variables in the universe (such as the speed of light). |
The metre is the length of the path travelled by light in vacuum during a time interval of 1⁄299,792,458 of a second.
Oh dang, there's another of those pesky fractions again with a completely fudged number to make it equal to the agreed upon meter based on earth distances. Oh, and seconds are derived from a rotation of the earth, another nice arbitrary number rooted in nature on our planet; hardly a universal constant. Another planetary body's measurements would most likely be completely different.