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What is time? Our sense of time is like space, it is something we infer from something other, and that other is the motion of an event. An event is a change occurring to the content in space. Every change has a length of duration, it has a beginning and an end, and the length between the beginning and the end is the duration of the event of a change. Events, do not of course, occur with the same lengths of duration. For instance, here in England it is o6:57 am on the 31st December. Tonight at midnight the New Year is going to be delayed by 1 second. This is due to a slow down in the earth's rotation, and is thus being accounted for. An event, such as 1 full rotation of the earth, has changed by an increase of 1 second longer than what it was the year before. So, are we actually changing 'time' itself, by making a duration audit, or are we simply imposing our own sense of time upon reality?
We derive our duration length of a second by observing the length of a single oscillation of the caesium atom. A second does not actually exist. It is just an imposed unit of measurement. If I were to ask you to define time, you would probably relate it to some occurrence of change, but change is not what time is. In fact, you could not define time alternatively to what I state, without using an imposition, and if you have to use a stance of imposition for time, you are simply demonstrating it to be a man-made abstraction...nothing more.
You infer time by your observance of events around you, and in you (proprioception), and the brain cross-references them into a one stream data flow by synchronising all sense data, and from which our conscious awareness arises. In order to sense time, you need a frame of reference, just as you need a vector coordinate frame of reference to sense space. Your one stream data flow of all sense data is that frame of reference...your 'now' moment that throughout your life remains static in a sea of events of varying lengths of duration. None of this makes time real.
What is real is that events take place, changes constantly occur, and they all have their own lengths of duration.
The concept of spacetime functions as a mathematical expression, but it is not real, and is simply a man-made abstraction to infer an environment in which (not on which) events take place. Both space and time are not realities.
originally posted by: Phantom423
a reply to: neoholographic
Think harmonic oscillator - period, amplitude, frequency. Particle in initial state 1. Oscillates to state 2. Oscillates back to state 1. Time = the interval between the states.
originally posted by: toms54
a reply to: Phantom423
I can understand most things here but the quantum stuff. I have read a lot but never received a systematic education on this subject. Would you say these vibrations underwent any type of decay or are they supposed to continue unabated indefinitely? Sometimes I think of time more as a measure of entropy than just motion. That would imply there eventually be a motionless zero state at the end of time.
Here's something to wrap your head around: when astronaut Scott Kelly went into space and his slightly older twin brother Mark stayed on Earth, the age gap between them increased, thanks to Scott's time in orbit.
Scientists have long known that time passes faster at higher elevations—a curious aspect of Einstein's theories of relativity that previously has been measured by comparing clocks on the Earth's surface and a high-flying rocket. Now, physicists at the National Institute of Standards and Technology (NIST) have measured this effect at a more down-to-earth scale of 33 centimeters, or about 1 foot, demonstrating, for instance, that you age faster when you stand a couple of steps higher on a staircase.
originally posted by: neoholographic
a reply to: dragonridr
Scientist are asking does gravity exist.
“For me gravity doesn’t exist,” said Dr. Verlinde, who was recently in the United States to explain himself. Not that he can’t fall down, but Dr. Verlinde is among a number of physicists who say that science has been looking at gravity the wrong way and that there is something more basic, from which gravity “emerges,” the way stock markets emerge from the collective behavior of individual investors or that elasticity emerges from the mechanics of atoms.