Michel, This time I am being serious.
If one begins with the postulate that that all weight is apparent weight then it is easier to understand how and why weight anomalies might arise. Gravity is the tendency of a body to accelerate. Weight is only a _measure_ of this tendency, and it is a relative measure at best. A true measure of gravity is 'g'. Weight is also used as a measure of inertia, so there is tendency to confuse inertia and weight. Mind you, in applied mechanics, one treats weight as if it were an inertial force. Einstein went further and turned the treatment into a principle of nature, and the theory of general relativity was born. Harry PS On a half serious note. The condition of of being over-weight is really the condition of possessing excess inertia. Michel Jullian wrote: > I guess Harry was teasing us by referring to apparent weight = weight minus > centrifugal force. This obviously can be zero when traveling at the right > velocity over the surface of the Earth, in the same way as people in orbit or > in free fall are weightless, but only apparently since they obviously still > experience the Earth's gravitational attraction (weight). > > Michel
