[time-nuts] 15 ns vs. 15 nS
cfharris at erols.com
Tue May 22 10:03:38 EDT 2007
Rob Kimberley wrote:
> Happy memories...
> I remember being switched half way through my "A" Level Physics course from
> cgs to MKS in 1968.
> Legal here in UK to show weights & measures in shops in both metric and
> imperial systems. Fuel at petrol (gas) stations sold in litres, and distance
> on roads still shown in miles (!!). Never did understand how the US gallon
> was smaller than the Imperial one though...
Pretty simple, really, a US gallon is 4 quarts (as in quarters), an imperial
gallon is 5 quarts.
The real question is when did the imperial gallon pick up the extra quart.
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