Time

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Jim_Baur said:
Is time relative?

If so, how?
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In the non-relativistic limit, time is absolute. At large velocities, time becomes relative to the frame of reference due to time-dilation.

Fortunately, it is very hard (in fact, very likely impossible) to get a massive object to approach these near-relativistic speeds (say v ~ 0.25 c) for the time dilation to play a role so we can say that time is absolute.
 
Time is absolute, unless you are dong something you don’t like. “I’ve been working on this tax return forever!!” 🙂
 
Your time experience slows down at high velocities, because the faster you travel in space the less you travel in time. Gravity also slows down your time experience, because gravity warps space-time.

Time is relative in another sense as well. Those of us who think quickly probably experience time slightly more slowly.than those of us who don’t. Its the matrix idea: if the world around you seems to slow down, it is really your mind speeding up. This is why time seems to move more slowly during an adrenaline rush.
 
Light travels the speed of light.

Is the light of a star as old as the star?
 
Jim_Baur said:
Is time relative?

If so, how?
Click to expand...
God is eternally present. As stated he is not limited by time or space. It is man who marks time in a linear fashion and God speaks to us in ways that we will understand, but after all how does the all knowing all seeing “eternal Being” explain himself to man with our limited capacity and intellect. (Talk about having to dummy things down!) That is how God can see and know what will happen in our future without interfering with our freewill to choose. God looks as our lives in terms of eternity and not as we often do as the short period between birth and physical death. He knows that like it or not that we are here spiritually for all eternity and that our time of earth is just a drop of water compared to the unlimited sea of eternity. (Even “sea” is a insufficient metaphor as we tend to think of seas as having limits!)
 
Time is relative. It changes due to location/gravity and the speed at which one is traveling.

For instance, the time of a girl jumping rope by the Great Pyramid will be slower than that of a girl jumping rope a mile away from the pyramid. Gravity can affect time.

It is also possible to travel into the distant future by traveling at the speed of light.
 
Jim_Baur said:
Light travels the speed of light.

Is the light of a star as old as the star?
Click to expand...
You can see the light of a star even after the star has died because it takes a while for the light to reach Earth.

So even though the star is dead, it appears to still be burning bright to us.
 
Actually that is not correct. Time is one of the dimensions of our Universe. As such it does not change. It simply began at the point of creation (Big Bang) 13.7 Billion years ago and it flows all the way to the end of our Universe.
Together with the other 3 dimensions they constitute or make up what we call the “time-space” or “time space” or “time-space continuum”.

Our brains being a 3 dimensional construct can’t easily grasp the concept of time as the 4th dimension. But that is what it is.

How fast we travel though Time is relative or it changes depending on the environment around us “The Frame of Reference” because Matter (Gravity) and Speed affect the “how fast” we travel through time.
Remember that no matter what, we are always travelling through time (we are captives) in that dimension.
While we can modify the way we travel through the other 3.

Remember that nothing in the Universe is at a standstill

Since the Big Bang everything is moving away from everything else 😃

We live on the earth that is spinning at a rate of 1 revolution/24Hrs or 1670 Km/Hr at the equator, but Earth is also rotating around the Sun at a speed of 107,229 Km/Hr and our Sun rotates around our galaxy center the milky way at a speed of around 235 Km/sec.

And hold it there is more our galaxy is also moving 😃

So you see that the way we experience time is affected by all this “frame of references” and also the “gravitational forces” involved.

It would be analougos to a being that axists in 2 dimensions. It lives in a plane where only X and Y displacements are possible for him, hence he would have no knowledge of the Z dimension nor of the Time dimension, He would be slave of Time and Z. If we move the plane where he lives up or down along the Z he cannot grasp what is going on.

If we were to speed up to close to the speed of light, we would slow down or travel through time, although we would not see it or feel it. Time lapses slower for us than for someone not going at our speed.
If we could observe other people outside of our frame of reference we would see them moving and aging at an accelerated rate and if they looked at us we would look like frozen. But for the people inside the frame of reference they would not perceive any difference.
 
Marie1234 said:
Time is relative. It changes due to location/gravity and the speed at which one is traveling.

For instance, the time of a girl jumping rope by the Great Pyramid will be slower than that of a girl jumping rope a mile away from the pyramid. Gravity can affect time.

It is also possible to travel into the distant future by traveling at the speed of light.
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I see time as an abstract concept, it does not have a time particle.
So time exists only for a creature who chooses and has the ability to measure an imaginary quantity such as time.
If I glued an imaginary metronome to the top of my head and it kept time for me, then no matter how fast or where I traveled that imaginary time would always beat out the same rhythm, from my point of view, which is the only important point of view there is since it is I who am measuring time.
 
pig said:
I see time as an abstract concept, it does not have a time particle.
So time exists only for a creature who chooses and has the ability to measure an imaginary quantity such as time.
If I glued an imaginary metronome to the top of my head and it kept time for me, then no matter how fast or where I traveled that imaginary time would always beat out the same rhythm, from my point of view, which is the only important point of view there is since it is I who am measuring time.
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That’s not true actually, scientists actually have done this test. They took 2 watches set at the exact same time, had one stay still and moved the other as fast as they could in a machine. After the test was over, the time on the watch that was traveling at a high speed was slower than the watch that was standing still…

Time is a “thing” and is measurable. It’s not just an abstract idea. It may not be tangible but it’s real.

Here’s an experiment that scientists did this type of tests with planes…

en.wikipedia.org/wiki/Hafele%E2%80%93Keating_experiment#Results
 
Marie1234 said:
That’s not true actually, scientists actually have done this test. They took 2 watches set at the exact same time, had one stay still and moved the other as fast as they could in a machine. After the test was over, the time on the watch that was traveling at a high speed was slower than the watch that was standing still…

Time is a “thing” and is measurable. It’s not just an abstract idea.
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I know Marie, and I sympathize, but you must agree with me eventually. Because the watches were material things they stretched with speed… …or something.
But the important thing is that the observer travelling fast did not notice any change in the rate of flow of time. The observer, like the customer, is always right.
 
If time is absolute, then how come I gained an hour when I went to visit my love? 😛
 
Marie1234 said:
That’s not true actually, scientists actually have done this test. They took 2 watches set at the exact same time, had one stay still and moved the other as fast as they could in a machine. After the test was over, the time on the watch that was traveling at a high speed was slower than the watch that was standing still…

Time is a “thing” and is measurable. It’s not just an abstract idea. It may not be tangible but it’s real.
Click to expand...
Marie:

To the extent that the parts of motion are numerable, time is real; but to the extent that there is no actual numbering, time is only imperfectly real. A dozen sheep, in a sheep’s pen, are real in and of themselves and as a group. But, the number 12 is only imperfectly real. Time is the measure of the before and after of motion. It is a strange phenomenon that is both an abstraction and a reality that the human mind makes sense of.

God bless,
jd
 
Marie1234 said:
That’s not true actually, scientists actually have done this test. They took 2 watches set at the exact same time, had one stay still and moved the other as fast as they could in a machine. After the test was over, the time on the watch that was traveling at a high speed was slower than the watch that was standing still…

Time is a “thing” and is measurable. It’s not just an abstract idea. It may not be tangible but it’s real.

Here’s an experiment that scientists did this type of tests with planes…

en.wikipedia.org/wiki/Hafele%E2%80%93Keating_experiment#Results
Click to expand...
True, and GPS wouldn’t even work if the relativity of time were not taken into account, so it’s interesting that people who use GPS every day can still believe time is absolute or imaginary.

Speed cop: In the last five minutes you’ve covered 10 miles, putting your average speed at 120 mph.
Driver: But time is imaginary.
Speed cop: Oh well, that’s OK then, have a nice day.

:rolleyes: 😃
 
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