[Sca-cooks] period measures

[Stefan li Rous]

Bear commented:
> Troy weights were the standard used to measure precious metals at the great
> fair in Troyes, France.  It was based on Roman weights and became the
> standard for measuring precious metals in much of Europe.  One pound troy is
> 5,760 grains and has 12 ounces.  One pound avourdupois is 7000 grains and
> has 16 ounces.  One ounce avdp is .911 troy ounces.  And 1 pound avdp is 1.2
> pounds troy.  A troy ounce is about 31 to 32 grams.

The metric and other modern measuring systems define their wieghts in terms of
some physical measurement that is the same anywhere under the same conditions,
  such as a particular wavelength of light or wieght of a particular measure
of water.
You give a lot of conversions above, but what are they based upon? The wieght
of a particular piece of gold? The wieght of a particular volume of gold?


Stefan
--
THLord Stefan li Rous    Barony of Bryn Gwlad    Kingdom of Ansteorra
    Mark S. Harris            Austin, Texas         StefanliRous at austin.rr.com
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