If yes, then how? I cannot understand the process, especially the twin paradox. Why one twin is getting older faster than the other one who travels to the outerspace ?

http://www.youtube.com/watch?v=L3LHAlcrTRA

If principles of language were actually taught, you would be familiar with a Two Element Metaphysics.

It was being developed by some early Greeks. In the simple.

If you define a thing as some material in some form or shape, then,

The two elements of a thing are form and material.

You will find your bodies environmental acquisition systems are divided the same way, some abstract form, others abstract material.

It follows that neither form nor material are things.

It also follows that one cannot predicate of an element, as Plato and Aristotle stated.

i.e. You cannot predicate of an element, which is not a thing. i.e. You cannot predicate of time, nor space, etc, you can only apply boundaries to these materials to make things.

Predication is the inverse function of abstraction.

Holy Mother Of God!

better not let that Flux Capacitor overheat!

Yes time travel is possibile, heres an example....this thread was posted in the past, its currently in the present and will be there in the future

Yes it is.
Visit a city in the UK called Manchester and you'll think you've gone back about 25 years

Honestly? Math doesn't prevent one from going back in time but no one knows how to do it.

To go forward in time you just increase speed. The faster you go, the more time will slow for you. If you get near the speed of light your time will pass very slowly indeed.

If you were on a spaceship traveling near the speed of light for twenty years, only a few years would pass in your time.

That just means you will get to your destination faster....how is that time travel

No, time doesn't work that way. Time is relative. Only a few years would pass on the spaceship and the twenty years would pass on Earth.

The person on the spaceship would have traveled into the future by slowing the rate time passed for him.

[






No, time doesn't work that way. Time is relative. Only a few years would pass on the spaceship and the twenty years would pass on Earth.

The person on the spaceship would have traveled into the future by slowing the rate time passed for him.









Theres no time in space but the way i see it in theory....it will be the same length of time only that Earth has time on it....i'm still uncertain and unconvinced....plz elaborate more on it

No, time doesn't work that way. Time is relative. Only a few years would pass on the spaceship and the twenty years would pass on Earth.

The person on the spaceship would have traveled into the future by slowing the rate time passed for him.









Theres no time in space but the way i see it in theory....it will be the same length of time only that Earth has time on it....i'm still uncertain and unconvinced....plz elaborate more on it







The rate time passes is relative to the absolute speed of the object which is experiencing the time. This is part of what is called Einstein's Theory of Relativity. Time also changes speed with proximity to gravity. It has been proven in many different ways and is generally known as "time dilation".

A common "proof" is that separate clocks have to be located on Earth verses the ones in space that carry the transmitters for the GPS system. The transmitters in space are going faster due to speed and slower due to gravity so time is different from the Earth's surface and must be accounted for for the the GPS system to work.

http://en.wikipedia.org/wiki/Time_dilation

Theres no time in space but the way i see it in theory....it will be the same length of time only that Earth has time on it....i'm still uncertain and unconvinced....plz elaborate more on it


The rate time passes is relative to the absolute speed of the object which is experiencing the time. This is part of what is called Einstein's Theory of Relativity. Time also changes speed with proximity to gravity. It has been proven in many different ways and is generally known as "time dilation".

A common "proof" is that separate clocks have to be located on Earth verses the ones in space that carry the transmitters for the GPS system. The transmitters in space are going faster due to speed and slower due to gravity so time is different from the Earth's surface and must be accounted for for the the GPS system to work.

http://en.wikipedia.org/wiki/Time_dilation



More or less I get it now. So a motion slows down the time, right?????

Yet,
is it speed, acceleration, or direction of movement, that slow down the time?

What if you move millions times the speed of light (in theory of course), will the clock stop? and if you go even faster will it go backward?

Yes time travel is possible. But you can only go forward, and very slowly.

. . . . . . Could someone please translate the above into English?

The rate time passes is relative to the absolute speed of the object which is experiencing the time. This is part of what is called Einstein's Theory of Relativity. Time also changes speed with proximity to gravity. It has been proven in many different ways and is generally known as "time dilation".

A common "proof" is that separate clocks have to be located on Earth verses the ones in space that carry the transmitters for the GPS system. The transmitters in space are going faster due to speed and slower due to gravity so time is different from the Earth's surface and must be accounted for for the the GPS system to work.

http://en.wikipedia.org/wiki/Time_dilation



More or less I get it now. So a motion slows down the time, right?????

Yet,
is it speed, acceleration, or direction of movement, that slow down the time?

What if you move millions times the speed of light (in theory of course), will the clock stop? and if you go even faster will it go backward?


If you reach the speed of light (which is impossible) time stops. It would take an infinite amount of energy to accelerate you to the speed of light.

You can go faster than the speed of light but only by having the space/time where you exist expand. You cannot go faster than the speed of light relative to the space/time in which you exist. When the universe first expanded, it expanded at a rate of many times the speed of light.

http://www.space.com/17884-universe-expansion-speed-hubble-constant.html

Inflation, or the period where space/time grew very fast at a rate exceeding the speed of light is somewhat more difficult to explain. Imagine you are in a speedboat that can do 50mph (or the speed of light if you wish). The water you are in turns into rapids going the same direction but at 110 mph (or twice the speed of light). You would then be going three times the speed of light without the difference between you and the water ever being greater than the speed of light.

http://curious.astro.cornell.edu/question.php?number=387

let me be your guest.
Basically the above means I'm trying to sound clever and I hope people will fall for my bulls--t.

However Mr Dodo, there is one saying in life that I just don't agree with, and that is
Bulls--t baffles brains - well trust me, it doesn't.
Verbal Diarrhea, as stated above just makes people look silly.

I hope this explains it

So, what exactly is the definition of time?

This could take a while, but lets start with the hours first.
Right, listen carefully because I don't intend repeating myself.

When the two hand are pointing straight up that means twelve o'clock, have you got that bit

Let us take a system of co-ordinates in which the equations of Newtonian mechanics hold good.2 In order to render our presentation more precise and to distinguish this system of co-ordinates verbally from others which will be introduced hereafter, we call it the “stationary system.”

If a material point is at rest relatively to this system of co-ordinates, its position can be defined relatively thereto by the employment of rigid standards of measurement and the methods of Euclidean geometry, and can be expressed in Cartesian co-ordinates.

If we wish to describe the motion of a material point, we give the values of its co-ordinates as functions of the time. Now we must bear carefully in mind that a mathematical description of this kind has no physical meaning unless we are quite clear as to what we understand by “time.” We have to take into account that all our judgments in which time plays a part are always judgments of simultaneous events. If, for instance, I say, “That train arrives here at 7 o'clock,” I mean something like this: “The pointing of the small hand of my watch to 7 and the arrival of the train are simultaneous events.”3

It might appear possible to overcome all the difficulties attending the definition of “time” by substituting “the position of the small hand of my watch” for “time.” And in fact such a definition is satisfactory when we are concerned with defining a time exclusively for the place where the watch is located; but it is no longer satisfactory when we have to connect in time series of events occurring at different places, or—what comes to the same thing—to evaluate the times of events occurring at places remote from the watch.

We might, of course, content ourselves with time values determined by an observer stationed together with the watch at the origin of the co-ordinates, and co-ordinating the corresponding positions of the hands with light signals, given out by every event to be timed, and reaching him through empty space. But this co-ordination has the disadvantage that it is not independent of the standpoint of the observer with the watch or clock, as we know from experience. We arrive at a much more practical determination along the following line of thought.

If at the point A of space there is a clock, an observer at A can determine the time values of events in the immediate proximity of A by finding the positions of the hands which are simultaneous with these events. If there is at the point B of space another clock in all respects resembling the one at A, it is possible for an observer at B to determine the time values of events in the immediate neighbourhood of B. But it is not possible without further assumption to compare, in respect of time, an event at A with an event at B. We have so far defined only an “A time” and a “B time.” We have not defined a common “time” for A and B, for the latter cannot be defined at all unless we establish by definition that the “time” required by light to travel from A to B equals the “time” it requires to travel from B to A. Let a ray of light start at the “A time” $t_{\rm A}$from A towards B, let it at the “B time” $t_{\rm B}$ be reflected at B in the direction of A, and arrive again at A at the “A time” $t'_{\rm A}$.

In accordance with definition the two clocks synchronize if
\begin{displaymath}t_{\rm B}-t_{\rm A}=t'_{\rm A}-t_{\rm B}. \end{displaymath}

We assume that this definition of synchronism is free from contradictions, and possible for any number of points; and that the following relations are universally valid:—

If the clock at B synchronizes with the clock at A, the clock at A synchronizes with the clock at B.
If the clock at A synchronizes with the clock at B and also with the clock at C, the clocks at B and C also synchronize with each other.

Thus with the help of certain imaginary physical experiments we have settled what is to be understood by synchronous stationary clocks located at different places, and have evidently obtained a definition of “simultaneous,” or “synchronous,” and of “time.” The “time” of an event is that which is given simultaneously with the event by a stationary clock located at the place of the event, this clock being synchronous, and indeed synchronous for all time determinations, with a specified stationary clock.

In agreement with experience we further assume the quantity
\begin{displaymath}\frac{2{\rm AB}}{t'_A-t_A}=c, \end{displaymath}

to be a universal constant—the velocity of light in empty space.

It is essential to have time defined by means of stationary clocks in the stationary system, and the time now defined being appropriate to the stationary system we call it “the time of the stationary system.”

Albert Einstein