i'v heard that people in space age more slower than in th earth. why?
2007-01-17 06:24:08 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
The people in space are usually in orbit, which means they are travelling around 25,000 miles per hour relative to us on the ground. This is a tiny but calculable fraction of the speed of light, and according to the theory of Relativity, that means time slows down in proportion to one's relative speed. So after days in orbit, astronauts return to Earth a few microseconds less aged than they would have been remaining on Earth.
Some day we may attempt to launch a spaceflight to a nearby star. To keep it from taking forever, we might have it accelerate to a much larger fraction of light speed. That would have a much more dramatic effect on time aboard ship. While we waited 80 years, only 10 may have passed on board. But that attempt is a long way off.
2007-01-17 18:37:11 · answer #1 · answered by skepsis 7 · 0⤊ 0⤋
Space time is a description of the three dimensions of space and the 1 dimension of time. They are all related. There really is no contextual comparisons between earth time and space time.
Earth time, in the context you are suggesting, has some scientific definition and merit. It doesn't!
2007-01-17 14:38:24 · answer #2 · answered by James O only logical answer D 4 · 0⤊ 0⤋
Only because they are in faster motion than we are and it's by fractions of a microsecond per day.
2007-01-17 14:31:23 · answer #3 · answered by Gene 7 · 0⤊ 0⤋