May-chan wrote:(total derail)
but think of it this way: he is dropping that book on the earth... the earth is spinning... the earth is orbiting around the sun... the sun is orbiting around the galaxy... and the galaxy... well... I'm pretty sure it is motion as well... so it /is/ possible... >_> <_< >_>
It's not possible that way, even if you take into account all of those factors during the second (or two) that it takes the book to travel from the hand, to the ground. Well, very unlikely, anyway (due to amount of time traveling, otherwise you don't have to drop the book and claim perpetual motion as accumulating a billion miles all of the time). Also, those factors shouldn't be included because it doesn't effect the path between point A and point B. Think about it. If the Earth's rotation were a factor, letting go of the book would show it fall very far away... And we would have been tossed off into space long ago. ^_^; And it's not just due to gravity, either. It's for the same reason that we are as motionless as the vehicle is when we're in it, while we see everything else in motion. That's why I said that, on an atomic scale, traveling a billion miles would be feasible. But I've long forgotten all of this science stuff... Someone else can elaborate what I mean, and/or correct me.