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2007-09-20 08:34:45 · 10 answers · asked by curious________ 1 in Science & Mathematics Astronomy & Space

10 answers

It depends on ones frame of reference. Let's say you were to travel into space at 20k miles an hour. Time as you know it would not seem any different and when you looked back on earth you would not notice any difference in time there either. There would be some time dilation but it would be so small it would not be noticeable.

On the other hand if you were to blast into space at 85% the speed of light, time as you know it would not appear any different to you in your space ship however if you were to look back on earth you would notice that everything is moving quite a bit slower. Time from your frame of reference would be different then time from earths frame of reference.

2007-09-20 08:53:10 · answer #1 · answered by Xash 3 · 2 0

Time is a tricky thing, as Alan says we use a specific interval to measure time but time is also a function of the SpaceTime continuum and depends on relative velocity.
The math can get nasty but basically speaking if you take a watch and fly to the moon and back its identical twin on earth will read a different time.
This was proved in the 60s by some scientists who flew around the world with an atomic clock in the seat beside them.
The difference at that kind of speed is VERY tiny but detectable and does agree with Einsteins equations.

2007-09-20 17:39:24 · answer #2 · answered by Anonymous · 1 0

time does not change with location
it does change with the speed you travel and/or to the ammount how much space itself is bent due to a mass near you.

if you are in space, you are usually traveeling in an orbit around earth.
your time would stay the same (in your opinion), but if you compare it to watches on earth it'll run a tiny tiny fraction of a second slower than on earth.

2007-09-20 16:51:05 · answer #3 · answered by blondnirvana 5 · 1 0

Time as we know it on Earth would not exist as the way we view it, time is a man made observation. Our time is based on our rotation speed, and our orbit of our sun. It has no influence on the time of the universe. It is just a point of reference, a measurement if you like.

Our nearest neighbour Venus for example has a very different time scale to Earth - a Venetian day is longer than a Venetian Year! i.e. it rotates slower than it orbits.
Therefore time is relative from our perspective.

2007-09-20 16:32:34 · answer #4 · answered by Tony 3 · 1 0

Please disregard Alan above, that is total nonsense. Time is a dimension of our universe (when put with space it forms space-time). I would have thought everyone knew that by now.

To answer your question, the fact of going into space would not change time - but moving through space would.

Very, very basically - the faster you travel the more time would slow for you, relative to another person.

So, time would indeed change (from your perspective) if you start moving.

2007-09-20 15:51:21 · answer #5 · answered by Hello Dave 6 · 1 1

Time is relative to the point of focus - it is usually based upon the day/night cycle which is naturally different for each planet.

However, since man has not yet set foot on these other planets, the point of reference is the earth and the 24 hr, or 28800 second day. In order for man to return from any space-trip, his terms of reference have to be against standard time on earth, or Greenwich Mean Time.

Time cannot change in space, certainly not for humanity, as our bodies are regulated by the time-system we have always used, and are not capable of changing to another pattern, except for very short periods of time.

This can be explained by the fact that shift work is not for everybody!

2007-09-20 15:49:37 · answer #6 · answered by Modern Major General 7 · 0 3

In relativistic terms, the passage of time slows down in the presence of gravity. That is to say that if we were to synchronize a pair of clocks and send one into orbit, the one in orbit would run slightly faster. This test was actually performed in 1976 with the launch of Gravity Probe A

2007-09-20 15:52:48 · answer #7 · answered by ? 3 · 1 1

Time, per se, does not exist in space. The only reason we have "time" as in a watch, is for people to reference on earth a single point in history, present, or the future. If you want to relate something to people on earth, then you would need to keep your watch set with the time on earth for the time zone on earth. However, there is no "daylight savings time" in other parts of the world.

Donna, no one's answer should be disregarded. Just because you are not seeing the same perspective I am seeing doesn't mean my answer is "hogwash". I was approaching this answer from a "clock time". A "clock" does not exist, per se, in space. You can still count seconds based on your own experience of what a second is to you while you are in space, but this would still be based on your own perspective.

Just because you don't agree with someone's answer, does not mean others should disregard their perspective.

2007-09-20 15:45:24 · answer #8 · answered by Alan F 2 · 0 4

No .Time is imaginary unit of measurement.It is the divsion or sub division of duration required for Earth for rotation.This period is defined as "24" hours.

2007-09-24 05:36:04 · answer #9 · answered by leowin1948 7 · 0 0

No, it does not.

2007-09-20 15:48:49 · answer #10 · answered by campbelp2002 7 · 0 3

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