Messages in this thread |  | | From | "Albert D. Cahalan" <> | Subject | Re: Better battery info/status files | Date | Sat, 3 Feb 2001 19:40:48 -0500 (EST) |
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>> The units seem to vary. I suggest using fundamental SI units. >> That would be meters, kilograms, seconds, and maybe a very >> few others -- my memory fails me on this. > > There are lots of SI units, one for each physical dimension > that can be measured. Some of the ones that might apply here are: > > - Volts > - Coulombs > - Watts > - Amperes > - Seconds > - Joules
No, these are not all fundamental.
1 Joule == 1 newton * 1 meter
The newton isn't fundamental either. It is defined in terms of meters, seconds, and kilograms.
So if I've not mucked something up, 1 J == 1 m*kg*m/s/s.
Units get ugly when arbitrary powers of 10 get thrown in, and worse with random odd constants. Amperes have a 2.0e-7 in the definition.
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