[time-nuts] gravity controlled pendulumn clock?
jim77742 at gmail.com
Wed Dec 14 15:59:13 EST 2011
No it isn't. Not even close to "the world around".
"One fluid ounce is 1⁄16 of a U.S. pint, 1⁄32 of a U.S. quart, and 1⁄128 of
a U.S. gallon. The fluid ounce derives its name originally from being the
volume of one ounce avoirdupois
<http://en.wikipedia.org/wiki/Avoirdupois>of water, but in the U.S. it
is defined as
1⁄128 of a U.S. gallon. Consequently, a fluid ounce of water weighs about
1.041 ounces avoirdupois.
The saying "a pint's a pound the world around" refers to 16 US fluid ounces
of water weighing approximately (about 4% more than) one pound avoirdupois.
An imperial pint of water weighs a pound and a quarter."
You also have troy and apothecary systems - all different. Urrghhh.
A cubic metre holds 1000 litres (exactly) and a 10x10x10 cm container holds
a litre (exactly). A litre of water weighs 1kg, A ml of water weight 1
gram. (Fantastic for cooking btw - use digital scales, put your bowl on
them, zero it and add, say, 250g of milk/water/most liquids)
And if you want a laugh go youtube "American Chopper metric system" and
watch that short video. It is the final conclusive proof why metric is
On 15 December 2011 07:02, John Ackermann N8UR <jra at febo.com> wrote:
> On 12/14/2011 2:29 PM, shalimr9 at gmail.com wrote:
> Another small thing I miss is that a liter of water weighs a kg (under
>> reference conditions, I forgot what that was :). Then the specific weight
>> of various materials only has to be known by their "density" (ratio of
>> specific weight compared to water). It makes all sorts of calculations (
>> and guestimations) easy.
> I remember one (and only one) thing from my 7th grade math teacher: "A
> pint's a pound the world around."
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