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Date: Wed, 06 Oct 2004 14:44:25 GMT
From: amesnospamrak.demon.co.uk (Andrew Stephenson)
Subject: Re: Re: Re: Re: Re: Town And Country Miles


In article <ai57m0hbvf9238qh72j42jntbvo9od2vugnospamcom> mwm1(delete)nospamedu "delete" writes: > On Sat, 02 Oct 2004 18:24:13 GMT, amesnospamrak.demon.co.uk (Andrew > Stephenson) wrote: > > > IIRC, "newtons" often cause confusion in modern physics classes. > > Formally, the SI unit "newton" is that force which, acting on a > > mass of one kilogramme, causes it to accelerate by 1 metre/sec^2. > > > Thus a lump of 1 kilo _mass_ (NB) on Earth exerts a _force_ (NB) > > downward due to Earth's gravity of roughly 9.807 newtons. > > But weighs one kilo (kilogram) correct? Yes. Last time I checked. > And is Newton not capitalized as in Sir Isaac? Possibly. It gets vague in everyday use. Consider volts (Count Alessandro Volta) and amps/amperes (AndrČ Marie AmpĖre), which we laid-back Brits rarely capitalise. There may be an ISO standard. > > Physicists and designers of machinery prefer to be very careful > > when saying words such as "kilo", "newton", "mass" and "force". > > And weight.? That too. Another weighty matter of massive importance. -- Andrew Stephenson

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