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I do as science has proved it only time travel backwards is a little tricky.

2007-08-13 23:19:41 · 20 answers · asked by Lily R 6 in Science & Mathematics Physics

20 answers

hey, anything is possible, but..... why has nobody from the future visited us yet?? Time travel into the future could happen but its down to our ability to approach light speed which is way off yet, but then again i suppose you could get yourself frozen to acheive the same goal, but don't forget you could'nt go back!!

2007-08-13 23:29:41 · answer #1 · answered by jarrajackie 3 · 3 0

Time indicates how fast a process moves.The process either takes place or it doesnot take place. It only goes forward when its does occur. Some processes are reversible ,but t time is not reversible.
When time period repeats itself ,its called "oscillation", and is measured in Units of inverse time.

Whenever an object moves,it does so by oscilation ,as it travels thru the medium of space.And follows the rules that caused it to move.

So Time,even though it follows the geometry of space ,is a quantity and not a dimension.
When ever Scientist move from one location to their destination they usually take time and its additive in a particlular direction of motion.

So when you take a trip on a vacation you do travel in time but but you never take a backwards vacation. It always goes forwards. If you could go back in time you could avoid all the shortcomings of the past. It would solve all the worlds problems.All the blunders of science could then be corrected as well.

Einstein's Relativity theory indicated that time dilates ,however it does not show that it reverses once a process has been set in motion. As per relativity ,frames of reference where you observe time indicates a perspective effect giving opticall illusions. So what appears shorter or longer is really an illusion due to perspective effect.

Time travel is possible if travel distance exists.The ratio of the distance travel to the time travel is called "velocity of motion."

2007-08-14 00:10:43 · answer #2 · answered by goring 6 · 0 1

Professor Amos Ori has recently set out a theoretical model of a machine which would allow people to travel back in time and that overcomes key obstacles raised in the past.

The way the machine would work is based upon Einstein's theory of general relativity, a theory of gravity which shows how time can be warped by the gravitational pull of objects. Bend time enough and you can create a loop and the possibility of temporal travel.

Prof Ori's theory, set out in the prestigious Physical Review, rests on a set of mathematical equations describing hypothetical conditions that, if established, could lead to the formation of a time machine, technically known as "closed time-like curves".

In the blends of space and time, or spacetime, in his equations, time would be able to curve back on itself, so that a person travelling around the loop might be able to go further back in time with each lap.

In the past, one of the major obstacles has been the alleged need for an exotic material with strange properties - what physicists call negative density - to create these time loops.

This new theoretical model does not rely on exotic matter for it to work. It is now possible to use any material, even dust, so long as there is enough of it to bend spacetime into a loop.

The main remaining question involves the stability of spacetime, the very fabric of the cosmos, in time-travel scenarios. Overcoming this obstacle may require the next generation of theory under development, called quantum gravity, which attempts to blend general relativity with the ideas of quantum theory, the mathematical ideas which 'rule' the atomic and sub-atomic world.

However there remain some 'open questions' which will need to be resolved before a real Tardis comes to exist.

I hope this answers your question.

2007-08-13 23:42:29 · answer #3 · answered by Nathan JT 2 · 2 0

Hi,
Indeed I do know that a difference in relative time, or"time travel" is a fact. But only in a forwards direction. You can't reverse the time arrow, but you can accelerate it by moving very quickly away from a large mass, such as our planet.
This however only gains about 9 nanoseconds if you move up to 27,000 mph on your way to the local moon.
Having flown a lot for work, I reckoned that I am "now" about 0.1 nanoseconds in the future. But only relative to those that have stayed on the ground.
No big deal. I cannot notice it.
It only means I shall expire that minute tad ahead of my time.
"Backwards" can't for now happen, but many say that when, in billions of years, our universe stops expanding, returning to a central point, then the time arrow will point in the other direction. All is reversed, so you will live your life again, except backwards.
Seems weird, but again you will not notice it.
Type to you in the future, but "sdrawkcab"

Bob.

2007-08-13 23:47:59 · answer #4 · answered by Bob the Boat 6 · 2 0

conventional science with solid objects is hard to achieve but using lasers travelling near the speed of light in a circle could create a vortex, its the opposite to how a vacuum has energy by borrowing from the future. i don't know the prof's name but he is at MIT i think an article was in the mail on Saturday or the Sunday times at the start of the month 5/8/07 or6/8/07
Einsteins theory of relativity says time travel is possible and even says how it is possible but not how to do it remember the spaceship and cigar analogy from school. the only problem i can see is that we could explode as mass is added to the universe that shouldn't be their and that is what happens in vacuums

2007-08-16 01:41:42 · answer #5 · answered by manapaformetta 6 · 0 1

It's already been done. Some time ago one of the Russian astronauts spent so long up in space orbiting the earth that some boffin worked out he had travelled several seconds through time.

OK, so that's not a very practicle method for most of us but it's a starting point and proves that it can be done.

2007-08-13 23:31:27 · answer #6 · answered by Grizzly 4 · 2 0

yes there is time travel .
the concept is related to what is known as realtivity theory
once an object is set in speed of light everthing is possible the question is can any object go in speed of light?
i dont think so , but there is one thing that can go in speed of light guess who ...
light itself
so light can go back and even go to the future
and the question here again is can we change things to light ?yes we can
sound can be changed , mecanical energy can be changed
so why not tell some one from the past like the one that we loved a love story or whats happening inthe world at the present-
through light ... not everthing is in black abnd white ..
so the person where ever he/she is can hear our message.
the answer is light can do everthing we want
if you need more explanation on this fact please contact
Dr.Hailemelekot

2007-08-14 05:38:16 · answer #7 · answered by issac 2 · 0 1

well, some scientists say that it is possible. some say that the opposite of black holes are whiteholes - that is, instead of sucking in matter like the blackhole, whiteholes spray out matter. blackholes and whiteholes can join to form a tunnel called wormholes, which as many scientists believe , can be the secret to time travel.

2007-08-20 00:13:10 · answer #8 · answered by devigowri 2 · 1 0

theoretically time travel is possible.
just travel at a speed comparable to speed of light then some thing happens that the scientists just think about.

its a hypothesis.

may be it possible but........ how to resolve the paradoxes in the theory of time travel.

2007-08-14 00:09:03 · answer #9 · answered by Shastri ji 2 · 0 1

biologically you can speed up chemical processes, but it doenst mean you actually jump to a different era. i dont think it is possible yet. every thing in science is in a delicate balance, if a small presentage of co2 is causing global warming , what would happen if we go back in time and change things?

2007-08-13 23:31:03 · answer #10 · answered by oompa loompa 2 · 2 0

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