Since the fluc. known as time depends on the over all weight, therby gravity of the universe, how would its expanision effect time.
2007-08-08 08:37:30 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Well, if time increases then it slows down, the two options that you offered are basically the same (if a second increases in length, then it means that time will go by slower).
Time is defined in terms of frequency of a light wave. If the Universe expands, then the wavelength of that type of light will increase and thus the frequency will decrease. If the frequency decreases, then each "peak" of the wave will be further away from the other than before, and thus a second will be longer, which is what I explained about that is equivalent to time flowing slower.
2007-08-08 09:26:02 · answer #1 · answered by Future Engineer 2 · 1⤊ 0⤋
According to relativity the rate of time lapse varies according to the velocity of the platform on which time is observed from the outside. This is key, the time dilation, which is what that variation is called, is only observable from outside the platform that is moving. Time lapse as seen from inside the platform remains at fixed rate no matter how fast the platform moves.
As the platform in your question is the whole universe, none of us can see the platform from the outside. We are all inside observers; so time lapse for us is invariant...a second is a second is a second, no matter how fast the universe expands, contracts, or hic cups.
2007-08-08 16:37:41 · answer #2 · answered by oldprof 7 · 1⤊ 0⤋
The actual progression of time is constant. The perception of it is relative. This is because the speed of light is constant and unvarying. The smallest theoretically sensible time is approximately 5.39 x 10-44 sec i.e, (10 raised to the power of 44) - the time it takes light to travel 1 Planck's length (1.66 x 10-35 m (10 raised to the power of 34).
2007-08-08 16:02:24 · answer #3 · answered by KCNY1 4 · 0⤊ 0⤋
It depends on the the speed relative to the observer according to SR. If both affected by expasion, it probably would not change the time measurement.
2007-08-08 15:56:06 · answer #4 · answered by BenL 2 · 0⤊ 1⤋
I'd say neither.. because I thought time was a figment in our imagination to get tasks done.
2007-08-08 16:00:59 · answer #5 · answered by eve 2 · 0⤊ 1⤋