Is Time Travel Possible?
Is time travel possible? Theoretical physicist and 2057 host Michio Kaku explores the possibilities.
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25 Responses to “Is Time Travel Possible?”
Comment from Michel0555
Time February 15, 2010 at 3:41 am
We see things that happened long before when we look over long distances, but we ourselves cannot go back in time.
Comment from woyay
Time February 15, 2010 at 3:48 am
um… did we ever make a circle around the sun without The Earth?? Maybe the sun is an infinite cylinder .. I mean um.. why does it have to be a ball anyway.. I mean it is a star.. where did all the other star energy go .. it probably is a cylinder.. like don’t go towards it go around it
Comment from Wartled
Time February 15, 2010 at 4:35 am
yes totally right
Comment from shaochiavang
Time February 15, 2010 at 4:45 am
yes u can, we look backwards at time everytime we look at the stars
Comment from angper
Time February 15, 2010 at 5:22 am
I THINK THESE VIDEOS WILL caused a stir in SCIENCE AND THIS IS FOR THE CONTENT that solves many uncertainties that have to date science, IT BECAUSE MY HOBBY IS MAKING ALL THEORIES AND A BOOK TO CONSULT ME WITH RESULT a success of 85% -90% SURE THAT THE SAME HAPPEN NOW, only now not see the answer in any book.
- Antigravity – EXPERIMENT
- ALBERT EINSTEIN & MICHELSON EXPERIMENT
Comment from angper
Time February 15, 2010 at 6:05 am
I THINK THESE VIDEOS WILL caused a stir in SCIENCE AND THIS IS FOR THE CONTENT that solves many uncertainties that have to date science, IT BECAUSE MY HOBBY IS MAKING ALL THEORIES AND A BOOK TO CONSULT ME WITH RESULT a success of 85% -90% SURE THAT THE SAME HAPPEN NOW, only now not see the answer in any book.
- Antigravity – EXPERIMENT
- ALBERT EINSTEIN & MICHELSON EXPERIMENT
Comment from angper
Time February 15, 2010 at 6:45 am
I THINK THESE VIDEOS WILL caused a stir in SCIENCE AND THIS IS FOR THE CONTENT that solves many uncertainties that have to date science, IT BECAUSE MY HOBBY IS MAKING ALL THEORIES AND A BOOK TO CONSULT ME WITH RESULT a success of 85% -90% SURE THAT THE SAME HAPPEN NOW, only now not see the answer in any book.
- Antigravity – EXPERIMENT
- ALBERT EINSTEIN & MICHELSON EXPERIMENT
Comment from angper
Time February 15, 2010 at 6:45 am
I THINK THESE VIDEOS WILL caused a stir in SCIENCE AND THIS IS FOR THE CONTENT that solves many uncertainties that have to date science, IT BECAUSE MY HOBBY IS MAKING ALL THEORIES AND A BOOK TO CONSULT ME WITH RESULT a success of 85% -90% SURE THAT THE SAME HAPPEN NOW, only now not see the answer in any book.
- Antigravity – EXPERIMENT
- ALBERT EINSTEIN & MICHELSON EXPERIMENT
Comment from RnetTV
Time February 15, 2010 at 7:19 am
wht about the quantum physics… if an atom moves faster than the speed of light u can go forward.. but i don’t think u can go back…
Comment from neoverse
Time February 15, 2010 at 7:41 am
Send me some time in a shoe box.
Not a clock, not a watch but some actual time.
Comment from NYISLANDERS910
Time February 15, 2010 at 8:10 am
@UnderManiac
i know that it is made up, i was just joking around, thats why i put in in all caps with exclamation points…. i think its pretty clear to everyone that Back to the Future was fictional
Comment from hagupachu
Time February 15, 2010 at 8:31 am
I think Time Travel Possible is Impossible.Because Time is a Pshycological Phenomanon…..
Comment from silverbird58
Time February 15, 2010 at 8:51 am
so now equasions “allow”
once hardware is built minds and
equasions eat crow.
Comment from silverbird58
Time February 15, 2010 at 9:34 am
i wish he didnt sound so dis informal
Comment from chattychar
Time February 15, 2010 at 10:19 am
i wonder if time travel would be possible if there was a space shuttle that could fly around the Earth (in the lower exosphere under escape velocity speed) in the opposite direction of the Earth’s rotation. Or maybe the mesosphere can teach us something about time travel since there is so little known about that particular layer.
Comment from philhunter2005
Time February 15, 2010 at 10:47 am
but that means that time is “solid” and there is only ONE timeline. Its like in terminator, wer johns father Reese comes back from the future to save john, but if he’d never of come back to save john in the first place then john would never have been born. Meaning the timeline is concrete, its not changeable. U get where im coming from?
Comment from jiskefetisj
Time February 15, 2010 at 10:51 am
You can’t have this you can’t have that…?! So out of the loop! There is so much more going on than meets the eye and a whole lot more than you learn at school, college or university. You can reproduce all the outdated rational rethoric, feel really comfortably knowledgeable just because “they” told you so and it supports the ego and still have no real clue as to what may be possible ouside that frame of reference.
…Wisdom is knowing how little we know…
-Socrates
Comment from TriloMagic
Time February 15, 2010 at 11:49 am
I don’t think they’ll be expensive because a time machine wouldn’t be a money problem thing. The creator can go back in time and win the lottery. The creator of it wouldn’t lose money by letting someone use it. But I think you’re right about they won’t let just ANYONE use it. My friend said he wants to go back in time and win the lotto over and over again. THAT woulndn’t be good for “the future” or shall i say, “the present.”
Comment from TriloMagic
Time February 15, 2010 at 12:01 pm
actually we CAN safely transport a human. Humans are made up of atoms and particles that hold us together, that’s why we won’t be ripped apart. But if you took something like a sports almanac book, the book would be ripped apart, cuz it’s not made of particles/atoms holding it together.
Comment from UnderManiac
Time February 15, 2010 at 12:59 pm
Time moves in one direction only. Forward.
You can’t have negative time just like you can’t have negative length.
Time travel to the past is impossible. If you could travel near the speed of light, then time slows down for you and everyone would age a lot faster than you would.
You can’t reach the speed of light because the energy to propel mass that fast would be infinite. You would have zero length and time would stop.
You can’t go faster than light. Nothing can even go as fast as light.
Comment from UnderManiac
Time February 15, 2010 at 1:11 pm
@NYISLANDERS910 That is a made up thing form a movie.
A capacitor is a device that stores voltage for a short period of time. Flux is a material contained inside a capacitor, is the material which makes soldering easier on pipes and in electronics.
The capacitor can be used to filter out DC in an AC line, it can be used as in a tank circuit, it can be used to filter out AC in a DC power supply. It can’t be used as a main part of a time machine.
Comment from psychobillylx
Time February 15, 2010 at 1:44 pm
so like what is time?on an enormous scale of parallel universes???an endless loop?that can be modified with proper intelligence?
Comment from PinwheelEye
Time February 15, 2010 at 2:10 pm
thats not true
we will easily when material become strong enough to resist the gravity of a black hole
Comment from lincolnvelasquez
Time February 15, 2010 at 2:27 pm
@NYISLANDERS910 every opinion is could be possible. 
Comment from Michel0555
Time February 15, 2010 at 3:12 am
My evidence is that you cannot go backward in time, just as you can’t have negative length or negative volume or negative mass.
Negative amount of light is also impossible.
Speeds are never negative.
Even Temperatures are not negative on the Kelvin degree system which scientists use.
Negative numbers exist in mathematics, but nothing in our real world is negative, and thus you cannot go backwards in time
( negative time )
Conclusion: Mathematics cannot be used to prove time can go backwards.