Back 2 da Future

Society Religion & Philosophy
1

Not coz of da laws of physix but coz humanz havin a free will, 2 me time travel don’t seem possible… eva !
Havin da ability 2 b in da past or future arises da question of havin da ability 2 change da past or wat is back then present. dat meanz changin da future if u look @ it frm dat moment.
Consider some1 goin back in time n murderin a young Einstein or other physicists hence totally changin da course of da history, Not just changin one life but changin da way da world is 2day wid nuclear threats hangin

da question is can 1 go back in time n kill hiz/her grandfather when he/she was in infancy?

:konfused:

2

maybe u can visit the past and just see the past without interfering with it. U are just an observer without the old ppl being able to notice u.

Perhaps when ppl say they saw a ghost, was actually a time traveller who was just watching the past :~)

3

or a deja vu :hehe:

4

tobbah yaar kya point nikala hae seema :smiley: siraf tum hi soch sakti ho is tarhaan ka point :smack:

:stuck_out_tongue:

5

wat i aktually meant 2 ask was k when da concept of 11 dimension universe comez in it? r v assumin here dat if i go back in time, n kill my grandpa, then i wud never b born? But, da fact is i m born, n da effects dat I hv on da world in present time r still apperent. Doez me going back in time, change da present? If i go back in time, doez it mean da whole world goez back in time, or doez it just mean dat i went 2 another dimension, while da dimension dat i left stayz s if i was just died? :bummer: i guess u can say da same thin abt goin in2 future s well. infact there r sum crazy theoriez dat suggest dat allienz r actually human beingz frm da future, travellin back in time! ( make sum sense also na) but then again, da question fallz upon da definition of time? Wat is time?
a philospher may b able 2 tell u dat, but a physicist, m not 2 sure abt, makez ma mind run in circlez :mudhosh:

6

:halo:

7

Seema, the question of time travel is more deep than just to speculate about what will happen if…

it’s true that time travel IS possible. but according to that form of time travel u can’t ask the question ‘what will happen TO OTHERS if i go back and forth in time’. becuz everyone has his OWN measurement of time, ull see that what a person will see as happening in 1 hour, the other one will see it in 3 days. Both have a different time measurement (hence they have travelled in time according to each other’, but they haven’t influenced each other

8

do u run M$ windoz, breakfast of the loozers :hoonh:

9

neva try 2 cut da branch u r sittin on Accy :nono3:

10

[QUOTE]
*Originally posted by NeSCio: *
ull see that what a person will see as happening in 1 hour, the other one will see it in 3 days. Both have a different time measurement (hence they have travelled in time according to each other', but they haven't influenced each other
[/QUOTE]

I agree, that's why different animals have different life spans. Like dog-year = 7 man years. Another example, the way we see things is tatally different than a fly or elephone sees it. When you try hitting a fly you can be as quick as possible, but to a fly we come at it in slow motion and it easily flies away (swatters are a different story). To elephants humans appear to be moving a fast motion, like if u hit forward on a playing video tape.

11

Well I suppose it’s feasable to look back into time. Send a mirror far into space then look at the reflection from the mirror of the Earth in a telescope, what you will see depending on how many light years away you’ve sent the mirror is the earth in the past relative to your present.

? :confused:

Time travel isn’t really my field unless you haven’t guessed.

12

no sh1t! :hehe: :rotfl:

13

[QUOTE]
*Originally posted by NeSCio: *

Seema, the question of time travel is more deep than just to speculate about what will happen if....

it's true that time travel IS possible. but according to that form of time travel u can't ask the question 'what will happen TO OTHERS if i go back and forth in time'. becuz everyone has his OWN measurement of time, ull see that what a person will see as happening in 1 hour, the other one will see it in 3 days. Both have a different time measurement (hence they have travelled in time according to each other', but they haven't influenced each other
[/QUOTE]

Time travel is possible.. ? I would like to read regarding this.. can u give me some sources?

And I think going into the future is possible.. like freezing the person( as in austin powers.. errr bad example) and then the person wakes up like .. 100 years after him being frozen.. so.. he has travelled into future in a sense. But past?

P.S: I know I sound like an idiot.. but I really want to know more about this time travel thing.

14

^fikar not. before it has reached a practically applicable state, we ppl won't be alive to see it :D

15

[QUOTE]
*Originally posted by NeSCio: *
^fikar not. before it has reached a practically applicable state, we ppl won't be alive to see it :D
[/QUOTE]

why did you say that time travel is possible?

16

^something being (physically) possible is something different than making it happen practically...in other words: for human usage. For example, electrons 'travel in time' all the time: so time-travel is possible, but not yet for humans :~)

17

Agreed :k:

18

:konfused:

19

[QUOTE]
*Originally posted by Chandbeti: *
P.S: I know I sound like an idiot.. but I really want to know more about this time travel thing.
[/QUOTE]

here goez na :)

*The future of time travel *

Various researchers have proposed ways in which backward and forward time machines can be built that do not seem to violate any know laws of physics. Remember that the laws of physics tell us what is possible, not what is practical for humans at this point in time. The physics of time travel is still in its infancy. While all physicists today admit that time travel to the future is possible, many still believe time travel to the past will never be easily attainable. Don't believe anyone who tells you that humans will never have efficient technology for backward and forward time travel. Accurately predicting future technology is nearly impossible, and history is filled with underestimates of technology:
*
Heavier-than-air flying machines are impossible." (Lord Kelvin, president, Royal Society, 1895)

"I think there is a world market for maybe five computers." (Thomas Watson, chairman of IBM, 1943)

"There is no reason for any individual to have a computer in their home." (Ken Olsen, president, chairman and founder of Digital Equipment Corp., 1977)

"The telephone has too many shortcomings to be seriously considered as a means of communication. The device is inherently of no value to us." (Western Union internal memo, 1876)

"Airplanes are interesting toys but of no military value." (Marshal Ferdinand Foch, French commander of Allied forces during the closing months of World War I, 1918)

"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?" (David Sarnoff's associates, in response to his urgings for investment in radio in the 1920's)

"Professor Goddard does not know the relation between action and reaction and the need to have something better than a vacuum against which to react. He seems to lack the basic knowledge ladled out daily in high schools." (New York Times editorial about Robert Goddard's revolutionary rocket work, 1921)

"Who the hell wants to hear actors talk?" (Harry M. Warner, Warner Brothers, 1927)

"Everything that can be invented has been invented." (Charles H. Duell, commissioner, US Office of Patents, 1899)
*

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Wouldn’t it be a wild world to live in if time travel devices played important roles in the development of humanity – like the computer and the telephone? Mathematicians dating back to Georg Bernhard Riemann (1826-1866) have studied the properties of multiple connected spaces in which different regions of space and time are spliced together. Physicists, who once considered this an intellectual exercise for armchair speculation, are now seriously studying advanced branches of mathematics to create practical models of our universe.

Science-fiction stories about space travel have already inspired humans to travel to the moon. Similarly, will time-travel stories inspire us to create real time-travel mechanisms? Will we ever find a way to overcome the Einstein speed limit and make all of spacetime home?

I wonder what humanity will discover about spacetime in the next century. Around four billion years ago, living creatures were nothing more than biochemical machines capable of self-reproduction. In a mere fraction of this time, humans evolved from creatures like Australopithecus. Today humans have wandered the moon and have studied ideas ranging from general relativity to quantum cosmology. Who knows into what beings we will evolve? Who knows what intelligent machines we will create that will be our ultimate heirs? These creatures might survive virtually forever, with our ideas, hopes, and dreams carried with them.

There is a strangeness to the cosmic symphony that may encompass time travel, higher dimensions, quantum superspace, and parallel universes – worlds that resemble our own and perhaps even occupy the same space as our own in some ghostly manner. Stephen Hawking has even proposed usingWormHole to connect our universe with an infinite number of parallel universes. Edward Witten is working hard on superstring theory, which has already created a sensation in the world of physics because it can explain the nature of both matter and spacetime. By realizing that the fundamental laws of physics appear simpler in higher dimensions, string theory can unite Einstein’s theory of gravity with Quantam Theory in ten dimensions. Our heirs, whatever or whoever they may be, will explore space and time to degrees we cannot currently fathom. They will create new melodies in the music of time. There are infinite harmonies to be explored.

**Clifford Pickover is a research staff member at the IBM Thomas J. Watson Research Center. He is the lead writer for Discover Magazine’s brain-boggler column and the author of Black Holes: A Traveler’s Guide, among many other books. This article was adapted from: Time: A Traveler’s Guide, by Clifford A. Pickover. Copyright © 1998 by Clifford Pickover. Used by permission of Oxford University Press, Inc. **