Simultaneity Video
The very notion of "now" is relative. For more information, see the World Year of Physics 2005 feature.
http://www.nsf.gov/news/mmg/mmg_disp.cfm?med_id=55657&from=vid
A RealPlayer streaming...
Time Dilation - An Experiment With Mu-Mesons
TIME DILATION: an experiment with mu-mesons
This classic film documents an experiment done in 1963 the results of which can only be explained when one accepts the consequence that moving clocks...
Time Dilation Video
Is time different to observers moving at different speeds? For more information, see the World Year of Physics 2005 feature.
http://www.nsf.gov/news/mmg/mmg_disp.cfm?med_id=55655&from=vid...