Bart

Can anyone explain for me the following case, please: A rocket is moving at speed 0.5 c, from planet A to planet C, which are distant from each other by 4 light-days. During the flight the rocket passes the planet B, located exactly halfway between planets A and C. At the time of passing the planet B, from the rocket and from the planet B are simultaneously sent SMS messages to the planets A and C. SMS sent from the planet B reaches the planets A and C at the same time, in two days. Question, when the SMS sent from the rocket, will be received on the planet A and the planet C, respectively. Thanks. This is not a homework.

Thanks for the comments, but what about the following question: Orbital speed of the ISS space station is 27 700km / h. The accuracy of atomic clocks is 10 * 10E-10 seconds per day. So if time dilation was indeed true, then the relativistic delay of the atomic clocks on the ISS should be highly visible and be 30 microseconds per day, this is very, very much because it is 30 000 times greater than the accuracy of these clocks. To our knowledge, the occurrence of such delay of the clocks on the ISS has not been confirmed.

A new look at TimeDilation, is presented in a scientific way in the article available at link: http://dl.dropbox.com/u/26262175/TimeDilation.pdf Will the experiment presented in the article can be scientifically challenged?

A new look at dark matter and dark energy is uniquely presented in an interesting demo program available at link: http://dl.dropbox.com/u/26262175/SagitariusBRprogramDescription.pdf I am interesting if anyone knows other educational programs on dark matter or dark energy which are available on the Internet?