Joe, In defense of Bob Bushnell, neither his statements nor your statements are "nonsense" except your opinion that his statement on Wh is nonsense.
In fact, on page 121 of the BIPM Brochure, we find that the joule is *defined* as the newton meter, not as the watt second, as you imply. The watt second, an equivalent but less fundamental form of the joule, and the watt hour, not even a coherent SI form, are not even mentioned in this CIPM Resolution of 1946. Contrary to your implication, Bob does not assert that the joule, the watt, and the watt second are exclusively for electrical applications. Bob's statements are clear. The joule is preferred for all forms of energy. However, Bob would "allow" the watt hour only for its traditional use; for the measurement of *electrical* energy. If I had the authority, I would declare the watt hour illegal by a date certain for any kind of energy bought or sold in interstate commerce. Gene. .......................................... > Robert Bushnell wrote on July 12 > >Madan; ... you tell Claire to give energy in units of TWH. > > > >This is wrong. The watt hour is allowed only for electricity. > > > >Energy is given in multiples of joule... Joe Reid responded on July 12: > Nonsense! The watt is the SI derived unit for all kinds of power - > mechanical, electrical or thermal. Agreed that the joule is the SI > derived unit of energy and is equal to the watt second, again not > exclusively electrical. The watt hour is a non-SI unit accepted for > use with the International System...
