Robin van Spaandonk wrote: > In reply to Harry Veeder's message of Mon, 04 Dec 2006 17:14:46 -0500: > Hi Harry, > [snip] >> However, I also make distinction between gravitational >> mass and inertial mass. >> >> The sun would still have plenty of inertial mass, and it is >> this inertial mass that attracts (accelerates) the planets. >> >> You might ask, isn't the function of gravitational mass to attract? >> This answer is no. Gravitational mass reflects a body's indifference >> to having its gravitational acceleration impeded by another body. > [snip] > I'm sorry, but I can make no sense whatever out of this. Perhaps you could put > it in other words? >
Mechanics is _a_ science of motion. However it has become an ideology of motion over the last 250 hundred years. I will put together a cut and paste history of the science of motion from Aristotle to Newton with selections I have gathered from the internet over the years. Harry
