Ahhh, that helps me... I think. If I understand it correctly, even for atomic clocks, time is a perception issue for the external observer. Is this a correct statement? A starting point for observing time would be in ideal vacuum, ideally away from object with mass, at that point, the observer would theoretically observe/perceive relative time changes from gravity?
On Fri, Nov 8, 2013 at 9:16 AM, Roarty, Francis X <[email protected] > wrote: > The gyroscope never lost energy from the perspective of a local observer > who is also unaware of any time dilation without use of external > measurements… The frame only appears contracted and slower from our frame > of observation because it is displaced into the 4th dimension. > > > > *From:* David Roberson [mailto:[email protected]] > *Sent:* Friday, November 08, 2013 2:33 AM > *To:* [email protected] > *Subject:* EXTERNAL: Re: [Vo]:Time, Mass, Gravity > > > > To slow down the gyroscope you would need to apply a retarding force. Any > energy loss would show up as an increase of energy of the system that > applies the retarding force. > > > > In order to get your gyroscope into a higher position than it begins > requires you to apply a force against the gravitational field. The device > that applies this force must do work upon your scope. > > > > The amount of work required for each direction of travel is equal provided > the final location and velocity of the gyroscope equals the starting > condition. No net energy would be consumed. > > > > Dave > > -----Original Message----- > From: Steve Wallace <[email protected]> > To: vortex-l <[email protected]> > Sent: Thu, Nov 7, 2013 10:59 pm > Subject: [Vo]:Time, Mass, Gravity > > I am trying to get my mind around a very difficult subject. I am devising > various mind experiments to help me understand it. So I thought I would > pose my first mind experiment to see if anyone has some insights that might > help me. > > > > This is my limited understanding of this part of the theory that applies > to this experiment. For an external observer, time slows down for an object > that approaches a large mass. I also understand that experiments have > validated this theory using atomic clocks. If the mass is large enough, > such as a black hole, time will theoretically stop, or nearly stop. > > > > My mind experiment has to do with a larger macro type object, rather than > the vibrations of the atoms in an atomic clock. For this mind experiment I > am using a high speed, low friction gyroscope. If I understand the > relationship between mass and time for an external observer, the gyroscope > should slow down as it approaches a large mass and the rotations would > return to normal speed when pulled away from the mass. If this is the case, > where does the energy go when slowing down the gyroscope by approaching a > mass, and where does the energy come from to return the rotations to > original speed when pulled away? > > > > Steve W. >
