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| Posted By: carl sagan the 2nd Posted On: Jul 22, 2004 Views: 1131 | space-time experiments howdy, out of curiosity i've been trying to learn whatever i can about einstein's relativity theory, can anybody tell me, wether there's any difference in the perception of time, of an astronaut who is flyng continously above the earth in one of those stations, and that of a person here on earth??? |
| Posted By: Keith Mayes Posted On: Jul 23, 2004 Views: 1130 | RE: space-time experiments Hi, To answer your question, there is no PERCEPTION by the astronaut of any change in the rate at which time passes, even though there is a REAL difference at very high speeds, particularly when the speed is a respectable fraction of light speed. At much lower speeds, such as that of the International Space Station, this is such a low speed in comparison to light speed that the difference in time is almost negligible. An astronaut having spent a year aboard the ISS will have aged 0.0085 seconds less than the rest of us. There is a lot more info in my book but it is to long and detailed to post here. Hope this helps. Keith |
| Posted By: ElliotKR Posted On: Nov 16, 2006 Views: 861 | RE: space-time experiments One interesting thought though, is if you take a look at how GPS navigational systems work. In the calculations made by the GPS recievers, they have to compensate for relative time distortion for the sake of accuracy. |
| Posted By: Keith Mayes Posted On: Nov 16, 2006 Views: 858 | RE: space-time experiments That is something I have not been aware of before! They are so close to the earth I didn't think it made any difference, especially as the GPS sats. are only doing triangulation. Can you expand on what you said? |