| |
Metre The metre is the SI unit of length and is equal to 1650763.73 wavelengths in vacuum of the radiation corresponding to the transition 2p10-5ds of a krypton 86 atom.
| Examples | | | Classical radius of an electron | 2.818x10-15 m | | Diameter of carbon atom | 3.0x10-10 m | | Diameter of amoeba | 1.0x10-4 m | | Height of man | 2 m | | Height of large tree | 30 m | | Height of Mt. Everest | 8.848x103 m | | Radius of the Sun | 6.96x108 m | | Mean Sun Earth distance | 1.496x1011 m | | Distance to Crab Nebula (N.G.C. 1952) | 6.0x1019 m |
See also: decametre, decimetre, Femtometre, Length, Mile.
  
| |
