In reply to Harry Veeder's message of Fri, 24 Nov 2006 13:40:25 -0500: Hi Harry, [snip]
Is it possible you are confusing weight and mass? (You're certainly confusing me ;) >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 Regards, Robin van Spaandonk http://users.bigpond.net.au/rvanspaa/ Competition provides the motivation, Cooperation provides the means.
