Metric essay

[soren]

> Aaron Willis wrote:
> >And is not hard to relate things to example 1liter of water weighs about
1 kg
> > >and it occupies an area 10 cm x 10 cm x 10 cm.
> >
> >         Actually a liter of water weighs EXACTLY one kg...one of the
nicer things
> > about the metric system.  One cc of water weighs one gram, etc...

> Sorry to be so picky but:
> EXACTLY is a dangerous word. The density of all materials is temperature
dependent
> gases, liquids and solids.

	Yes, when talking about standards you must remember to state that it is at
STP (20 deg. C, 1 atmosphere).  At STP, 1 mL of pure H2O weighs exactly 1
g.

Soren Rounds