Tuesday, 24 December 2013

A video that caught my attention

 World's roundest object

It tells you how the world's roundest object define kilogramme.

  • The world's roundest object helps solve the longest running problem in measurement.
  • It is made out of a single crystal of silicon 28 atoms
  • This "project" is conducted to make the most perfect sphere on Earth and to be used as the measurement of 1 kg.

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