Ed Huntress wrote:

Units of force, for example: the Newton equals roughly 0.101 972
kilograms of force (kgf).

There is no such thing as "kgf". Outdated since decades and no
longer "legal".

The cussedness of natural phenomena (defining a
unit in terms of acceleration, for example, when its common use is as a
measure of force) gets in the way of numerical elegance.

It's no wonder. The gramm is a unit of mass. Period. Never was different. It
certainly is inelegant when used as force. The only thing getting in the
way is an unknowing user. :-))



Nick
--
The lowcost-DRO:
http://www.yadro.de