From: Bill Beam <[EMAIL PROTECTED]> Subject: Re: [time-nuts] Pendulums & Atomic Clocks & Gravity Date: Sat, 26 May 2007 13:06:10 -0800 Message-ID: <[EMAIL PROTECTED]>
> On Sat, 26 May 2007 13:34:24 -0700, Brooke Clarke wrote: > > >Hi Bill: > > > >It's my understanding that a satellite is in free fall, hence zero g. > > > > 'Free fall' implies that g is not zero! > > If g=0 was true, then the satellite would not be falling at all. > It is beacuse g is not zero, that the satellite is in 'orbit' rather > than moving off in a straight line. > > Jumping off a cliff also is "free fall" and surely g is not zero. > The only difference between the cliff jumper and a satellite > in orbit is the satellite never reaches the ground. They do, once they run out of altitude correction fuel and air drag slowly eats up the energy they have until they start to slowly decent and as they do they experience more friction and eventually drop out of the sky. Takes a while thought. Even at GPS satellite height, the drag is there even if it is small. Cheers, Magnus _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
