Re: gEDA-user: [OFF] high current amplifier

[der Mouse <mouse@xxxxxxxxxxxxxxxxxxxx>]

>> A ton of cooling is 12 Kbtu, about the heat of crystallization of
>> one ton of water, per hour.
>>> Why do engineers use so many whacky units?
>> [...], tradition and convenience.
> Good excuses for the masses.  Not so good for engineering, which
> depends on precise communication.

Which measuring air conditioning capacities in tons provides.  Just
because it's disorienting to those who are acquainted with only other
meanings of the word doesn't make it any less precise.  It's not even
ambiguous, since air conditioning capacity doesn't have units of
weight.  You might as well ask why motor power is measured in
horsepower - that's another historical unit that's cryptic and baffling
to the uninitiated, but is perfectly good to those in the industry.

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