[amsat-bb] Re: AMSAT-NA totally metric?
lihan161051 at sbcglobal.net
Sun Jan 21 17:51:38 PST 2007
Ah, the mass/weight confusion. Agree with you on that. And no, most
such writers don't handle unit conversions in anything like an
intelligent way (and I've seen far worse examples, some going to 2 or
3 decimal places ..)
Sometimes I wish more people understood the difference between mass
and weight, and the difference between energy and power. It would
cut down on some of the gibberish.
On Jan 21, 2007, at 4:58 PM, Daniel Schultz wrote:
> The same editors also convert rocket thrust from pounds (of force)
> kilograms, because they don't know that pounds can measure mass or
> force and
> these ARE NOT THE SAME THING! In respected scientific publications
> I see
> statements such as "the 100 pound (45.3 kilogram) rocket
> thrusters..." when
> they SHOULD have written "the 100 pound (400 Newton) rocket
--... ...-- -.. . -. ..... ...- -...
Bruce Bostwick N5VB
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