What is Time ?

Question

Is it real or made up ?

Answer 1

Time is indivisible from space, it is just another dimension of space-time. Just like up or down, or right and left, there is time. the theory of relativity actually is called "relativity" (a term that Einstein didn't like much) because, as time is a dimension of space-time, speed in any dimension is relative to speed in all the other dimensions. This explains time dilation when an object is traveling in space (as its speed in the dimensions of space affects the object's speed in the time dimension).

Answer 2

Obviously time is a reality. This becomes obvious in that it is a common value recognized by every person. It's recognition is not abstract and subjective as love and peace, but is a physical reality that all are able to directly relate to no matter where and what condition a person may be in (does not include the dead).

The physics trilogy describes physical time in a very precise manner. The trilogy is: E = mc2, m = E/c2, and c2 = E/m. The last equation is that for a field of physical time, or that of gravity - these two being the same force having different names. Our interest is in the energy and mass equations. Notice that in the one for energy the "c2" factor is the multiplier, while in that for mass it becomes the divider. In either of these equations the c2 value is that which forms the value sought. This means that our universe is totally composed of the value "c2". There is no physical value that is not composed of this value and yet exists in our universe.

The manner by which this value exists within mass is by electromagnetic energy forming into electrons, which form into neutrons and protons. The speed of "c" does not diminish when electromagnetic energy forms into mass. This is evidenced when electrons come apart into gamma radiation. That speed was always part of the electron. This is also seen when a nuclear explosion takes place and a great deal of radiant energy is released.

It is for this reason, mass being composed of the value of "c", is an absolute reality. Mankind can do nothing to change this value, because mankind, himself, is composed of it.

There is a short writing "Concepts Concerning Time, Gravity, and Energy" at http://360.yahoo.com/noddarc that may be of interest.

Answer 3

Time is a human construction that allows us to better understand our observations of the world around us and organize our activities. Time is more or less an abstract concept, but in terms of physics, it is believed that space and time are permanently linked together into something called the space-time continuum.

Answer 4

Its one of the many elements of the physical universe. Some people consider time the fourth dimension

Answer 5

Time is actualy the last dimention. But there is a value for time its realy small and all time is multipules of this number. look it up i don't know the exact number. there for events happen before and after these intervals of time nothing in between.

Answer 6

time is not a human construction, it is not made up. people overthink it. all it is is a measure of change. when something changes, you know time is affecting it. a year, day month etc are ways that humans measure time. outside of the solar system time still exists (things still change) so you cant define time by using the ways it is measured.

Answer 7

Who better to quote on this subject than Aristotle from his 'Physics'?

"Time is a number of change in respect of before and after."

Answer 8

It's one of the four of the basic continuous degrees of freedom used to parameterize all physical processes.

Answer 9

As far as I can think out nobody knows. It's the same with energy. However both are extremely useful concepts.

Answer 10

The 4th dimention