[Mohan.C]

I would like to hear that wonderous wonderous things you claim you have seen. But that is possible only if you tell them isn't it. Go on I am curious to know it.

[Unreal Zelta]

Sinjin,
You are bringing back many good memories of mine, by reintroducing this controversial topic.

FTL? Can be done and I believe has been done ( check with Dave...); FTL for a person is still in doubt. When it comes to Faster-Than-Light, many people tend to have a misunderstanding. FTL simply means is it possible to exceed the speed of light. Not practically having a person sitting in a rocket and travel at 2.998^8 ms-1.

The problem with current science is that it's applied in/to commercial practices, in order to achieve certain goals (e.g. a microchip). Which takes away the true meaning of science, once it is commercailised, then many factors come into play, the obvious ones are Profit and copyright.

As for travelling back in time, I'm sorry, my math skills is still under development. Although Dave's idea of a mathematical function intrigues me, and very likely to be valid (Give a negative integer).

Best regards

Zelta

[ema]

hi david...
Really I don’t know why you address this for me!!
ok, sinjin asked about why travel in time means travel faster than light, and I said there is nothing travel faster than light its only a result of relative frames to each other, its time dilation only..
then, if there is travel in time, and there is none, as I think, it will be by the mechanism of wormholes, its only hypothetical way to explain it..
its only a mathematical analysis too ( if we can travel in time, how we can do that?)...

Originally Posted by dleviwing ema; Something often overlooked in collage is the strict understanding of the paradigm of science. Science is based only on our ability to measure. Absolute time is a concept that is universal. Since all objects and observers are moving, we are unable to produce a device that can represent this absolute time; thus we us physical devices called clocks that are synchronized to a reference motion such as the rotation of the earth.

Science based on our ability to measure? Not always; scientist put theories then they try to measure, and some time they cant ..they cant measure the mass of gravitons, but they prove that it exists, they can’t LOOK to the interior of proton to measure the dimension of quarks, but they predict it..
then, there is no ASOLUTE TIME !!!
Newton spend his life to prove that there is no absolute space, the Einstein did the same to prove that there is no absolute time..

its relative,, you said this then said (Absolute time is a concept that is universal)..its not..

If there is anything I don’t understand in your posts, tell me..
and by the way I don’t understand what Archetype said!!!


Regards
EmA

[humanbydefault]

Interesting opinions... It looks as if you were arguing over different view points when in fact you agree on the same point as seen with relativistic frames (!)

Is time absolute? I rather asked myself: What is TIME after all?
Time is precisely a MEASUREMENT!
Time is the LENGTH a physical process takes... Let's say that during a second light travels 300,000 kms>>> The length of a second is entirely "human-determined" and it has nothing to do with the nature of the light or the medium determining its speed. Measurements are "READ" or "expressed" in "human terms." A kilometer could have been determined to be 2000 meters instead of 1000 and the results of the "measured" speed of light wouldn't have been faster or slower just different. For a 2000 meter kilometer I would say that the speed of light in planet BOB would have been 150,000 km/s.
You would probably argue about TIME being just a measurement procedure... after all I haven't said the whole thing.
The ENTROPY occuring over all existing things in this universe is what defines the term causality. Causality means that for you to be able to achieve step two you must first go throught step one. The measurement between those two steps in the process is what we define as TIME elapsed and we could use any form available to measure it... [seconds, how many moons we saw in between, how many time the sun appeared in the horizon etc.]
Traveling through TIME means to be able to violate causality over relativistic frames or realities and that although fascinating it is [sorry to say this] impossible.
In Einstein's "twin paradox" we saw the same causality issue all over again. Human cells age accordingly to our biological clock and not in reference to external conditions as it was presented by ilusionists [not physicists].
It's true that the entire instrumentation [read measuring devices] could show us that "time" had been altered by the fast trip of one of the twins but what we measured with our instruments was nothing more that positions in reference to stars and planets and THAT had nothing to do with the ACTUAL RATE OF ENTROPY experienced by everything including us and our ships.
Our bodies continued to age at the same rate no matter the location of our "behind" in the universe... Earth, mars or the Orion belt... doesn't matter. At the end of the process if our age is to be compared with the equivalent time passed in Earth we have age exactly at the same rate as anyone that happened to stay in the surface during all that time.
The measuring procedure does not alter results in that sense.
It is only in the quantum world where human-made measurements alters physical reality and that has to do with the structure of matter and the nature of waves alone.
Don't forget one thing: Relativity deals with position and momentum of "things." It is the scale of matter-energy where both terms are definables at the same time. Quantum mechanics deals with the internal nature of the relationship between energy and mass and its direct "coversion." Nothing can change the elapsing speed of the general entropy of the universe we live in. We find ways to "play" with those observations and imagine ourselves with enough knowledge to understand them... Do we actually? I don't know.
So! TIME is a measuring reference procedure of anything subject to a continuing entropy [change].
Time is as Aristotle clearly defined in his time... "The measurement of change." No change >>> No time. People "frozen in time" on the cover of a photograph doesn not change... the paper used for that same purpose however does. As we continue with our existence the past and the images perpetuing the past existence will "change" with the entropy of the universe. Light as the medium in information transfer travels but never returns to the source once again. The newly borne grows older to never be child again.
There are ways to travel into the past and we do that when we remember things. We [humans] posess the ability to keep memories of our loved ones and that allows us to perform time travel every time we desire.
I'd say that TIME is a "human thing" >>> A very "personal way" of looking at an entirely universe in the process of changing from one state to the very next...I guess...

HUMANBYDEFAULT

[SinJin]

Some very interesting and thought provoking explanations here, and I thank you for them. Humanbydefault, you bring up the idea of entropy into this discussion and I totally agree with you. The idea that something here changes into something there allows us to tick off the seconds, minutes, whatever word we wish to use, to determine how much "time" elapsed. but those units of measurement are just words, and the core idea is that a change has been made, a change that distinguishes the difference between something before and something after. To time travel involves more than just "going faster than light." It would involve reversing the very dynamics that our existence is built on. At least this is what I've gathered after reading the responses on this post...

[archetype]

Originally Posted by humanbydefault Is time absolute? I rather asked myself: What is TIME after all? HUMANBYDEFAULT

Time is the expansion of the universe

[quanta07]

Originally Posted by archetype Time is the expansion of the universe

The mathematics of expansion is presented in this article....
http://www.toequest.com/forum/mathem...e.html?garpg=2
Time is generated by expansion of our cosmos.
It is defined as multidimensional within nature.
Within cosmic expansion, Light is 4 dimensional and holds the key to time travel.
Dr Ronald Mallet, of the university of Conneticut, has/is doing experiments now.
He has predicted time travel within the next twenty years.
Not all of us are aware that we have evolved in 3 dimensional time,
within the distance domain of expansion(D/6*t^3).
The human race is aware of linear time only by observing motion.
Some make the assumption that time is 'madeup' by mankind...here they are very wrong.
For more insight into time itself, please see article above
and the long discussion of 'time' under the 'time travel' forum here on TOEquest......Q7

[humanbydefault]

The first time I saw the movie "The time machine" I was obsessed with the subject. I was too young to have an idea of concepts that whether we like it or not define our existence and our interactions with reality [the physical one].
I don't blame any of these new minds posting their dreams here in this forum on the contrary I encourage you to keep dreaming in time travel and enjoy it as much as you can...
There is a physical principle called entropy which prevent a system to "return" back into its original state of organization. One thing is the quantum realm and other the real of reality we live in. We live in the macroworld which in fact if the integrated result of many quantum probabilities if you want to see it that way.
So far entropy has not being violated by any macroworld example. A glass is broken when it falls into the floor and believe me friends unless you use some "super-glue" you will never see it as a glass again... but even then it is different than it was before the impact.
No need to get upset with my thought experiment... Keep dreaming in the world of fantasy trips into the past and the future... It won't hurt you as it didn't hurt me back in the past...

HBD

[quanta07]

Hi HBD,
I understand your view and I agree with the entropy point. But if you consider the past, where automobiles were just a dream, or going to the moon was just a dream. We now see automobiles and have been to the moon. These things came about because someone worked on them and took the concepts seriously.
To others the dream is growing closer to reality, experiments are continuing and progress is being made.
FTL velocity is not possible at this time, it is a 'dream'.....
I do not think it will happen in my generation, but maybe, if we keep the dream alive, maybe my grandchildrens children will think time dilation as second nature as we see cell phones and global communication today.
I believe Einsteins equations, time dilation has been verified experimentally by NASA.
The time dilation effects the traveler by slowing time, leaving the observer to age normally. IE at the end of the travelers high velocity flight, time dilation puts him into the future.
Actual FTL speed may never be possible, considering the effects on the quantum level.
But I do not think we should give up the 'dream'.........Q7

[dleviwing]

The last event that propagated a force that drove matter FTL created a universe; Do we need to create a universe to travel faster than light?