2007-10-23 02:52:35 · 8 answers · asked by Mercury 2010 7 in Science & Mathematics ➔ Astronomy & Space
how does gravity effect time?
2007-10-23 02:58:58 · update #1
so, If we can slow down time by travelling the speed of light, isn't there a barrier called C that we could not pass, thusly not sending something "backward" in time
2007-10-23 10:58:39 · update #2
No, time is relative. That's one of the main points of the theory of relativity.
For example, the faster you travel, time slows down for you relative to things not moving as fast. An experiment was done using atomic clocks. They were placed on supersonic jets traveling around the world and compared to clocks left on the ground. When the planes landed, the traveling clocks showed less time had passed for it than had passed for the clock on the ground. That's the Hafele-Keating Experiment. http://hyperphysics.phy-astr.gsu.edu/hbase/relativ/airtim.html
"Time is an illusion, and lunchtime is doubly so." Douglas Adams.
2007-10-23 03:25:43 · answer #1 · answered by Anonymous · 2⤊ 1⤋
Time indicates the relasionship of a Force per unit distance(space) divided by the Gravity Power per Unit area that is locked in the Substance in the volume of Space in the Universe.
Since the Universe is not an homogenous Structure(Galaxies not existing as being evenly distributed)Gravity Power is not the same at different location of the Universe.
Therefore Time is by the same rules not the same at different locations of the Universe.
However at the outskirts of The Universe the Period of the Universe is constant. That means the whole content of Time in the Universe is a CONSTANT.
Therefore we have Conservation of Mass ,Conservation of Energy and Conservation of Time as well in the set finite Containment of the Universe.
Time is a quantity which is not exactly Understood by the World of Physics and Cosmology.
And the Concept of Infinity of Existence of Time is Just beyond comprehension by Humans.
Hence to have more of a glimpse in the attempt to understand Time ,it would be very informative to refer to the Holy Bible
This is the simplest explanation that can be Given concerning Time without use of mathermatical abstracts of manifolds.
2007-10-23 03:45:05 · answer #2 · answered by goring 6 · 0⤊ 2⤋
No. Only the speed of light is constant.
It seems like it should be obvious that time is constant and that distance is constant, so that all speeds change and can be computed as distance / time, but relativity says only the speed of light is constant, and that you have to reverse calculate everything else, including speeds of things other than light and distance and time. What that means is that you end up with some complicated situations that seem totally wrong to your common sense.
2007-10-23 02:59:34 · answer #3 · answered by campbelp2002 7 · 4⤊ 1⤋
Well, the *effect* of time is constant, although time itself is not. For example, being close to a high gravitational source *here* will slow time, the same as it would near a source very far away.
if you were inside the event horizon of a black hole, time wouldn't stop, but it would be very close to that. An observer *inside* the event horizon would see the whole universe age and die, while just a few seconds would tick away for him.
2007-10-23 04:05:28 · answer #4 · answered by quantumclaustrophobe 7 · 0⤊ 2⤋
The passage of time is constant in a reference frame. It travels at 1sec per sec and only in one direction (forward toward the future). However, when you compare the time in one reference frame (what you are experiencing) to time in another reference frame (say what I am experiencing), it might be different depending on our velocity and position. According to Relativity, the passage of time in a faster moving reference frame is slower than the passage of time in a slower moving reference frame. Gravity has a similar effect as velocity. The passage of time in a reference frame that is closer to a gravitational body will be slower than the passage of time in a reference frame that is further from a gravitational body. However, there is one constant that everybody, regardless of position or velocity, will agree on, and that is the speed of light. Everybody will measure the same speed of light but not the same passage of time or lenght of distance.
I have no idea what Goring is talking about. There are four fundamental units, length (meter), time (seconds), mass （kilogram), charge (columb). Every other units that we have are a combination of these four units. Also, there is no such things as conservation of mass and conservation of time. There is only conservation of energy. What Goring said may sound fine but it is basically all rubbish
2007-10-23 04:54:23 · answer #5 · answered by zi_xin 5 · 1⤊ 1⤋
no.for more about this complicated subject read A Brief history of the universe, by Stephen Hawking. There is a famous story about 2 twins, one is sent into space, the other is left at home. The one that returns from space is younger upon return.
2007-10-23 02:57:35 · answer #6 · answered by Go2Guy4U 1 · 5⤊ 1⤋
It's all theory. That atomic clock and the jet is old and a joke. One test means nothing - to many variables. It's kind of common sense theory. You can't arrive at a place before you leave it. It's all math theory.
2014-08-15 17:01:23 · answer #7 · answered by Anonymous · 0⤊ 0⤋
No time is a relative commdity.
It is believed the speed of light is a constant in any given medium. But that's only within the medium, so it, too, is relative.
2007-10-23 02:59:25 · answer #8 · answered by Anonymous · 1⤊ 3⤋
Time is relative to speed and distance, so if you travel at a constant speed through space, time remains constant also
2007-10-23 02:55:48 · answer #9 · answered by Caper 2 · 2⤊ 3⤋
No. Time is altered by gravity just like space is. That is why physisists theorize that some day it may be possible to "time travel" by worm hole. I don't agree with that assessment because it assumes that the blackhole itself doesn't experience time at some critical points. If that were so, then would it exist in the future?
2007-10-23 02:58:12 · answer #10 · answered by Kevin B 3 · 3⤊ 2⤋