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Re: F=m*a, was Thermodynamics



It seems to me that it is a reasonable objection to note that the mass
suspended near Earth by a 1 Newton force is variable - depending on the
local value of g and the local value of surface speed and the local density
of air, etc., etc. - so that the mass needs to be specified as about 0.102
kilograms.
This takes away from the precision one would want to associate with
definitions.

OK, Brian, we'll hang the mass 1m off the ground in Sevres(sp?) France.

Jim


Jim Green
mailto:JMGreen@sisna.com
http://users.sisna.com/jmgreen