quiet

the atomic clock experiments:

http://hyperphysics.phy-astr.gsu.edu...iv/airtim.html

an explanation of time dilation:

http://members.tripod.com/wmhxbigguy/Theory/time.html

and the twin paradox:

http://math.ucr.edu/home/baez/physic...n_paradox.html

good as any post to sign off on. cheers