[time-nuts] Obscure terms

[J. Forster]

Civil engineers measure water reservoirs in Acre-Feet.

-John

===============

>> One of the more interesting units used in the air conditioning
>> industry in USA in the past was
> a measure of wall insulation which was tons per square foot per inch
> per degree Fahrenheit.
> That is the number of tons of ice per 24 hour period that must melt
> to sustain a temperature difference
> of one degree F per square foot of wall one inch thick.
> Not far off furlongs per cubic fortnight.
> cheers, Neville Michie
>
>
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