20 Apr
2002
20 Apr
'02
7:43 a.m.
Tony Duell wrote:
[1] If I want to name the unit of length that's
1/1000 of a metre I call
it a millimetre. But if I want one thousandth of the standard unit of
mass, I don't call it a millikilogram :-).
> Also the kilogramm is, AFAIR, the last of the
basic units which
> still relies on a prototype and has no definition on some nature
It does so! Just the basic unit of nature they picked was not a real
basic unit - it was the earth! The meter was something like 1/10,000,000
the Earth's curumfrence going thru Paris and the North and South poles.
The Kilogram's (derived from the meter ) volume was filled with water
and thus you got a unit weight.
--
Ben Franchuk - Dawn * 12/24 bit cpu *
www.jetnet.ab.ca/users/bfranchuk/index.html