Discovery Science Ultra Science Time Travel PDTV XViD-SomeTV
This show discusses the aspects and possibilities of time travel. If, for instance if one where to travel faster than the speed of light – they would be traveling backwards in time. But, since they gain more mass as they reach light speed, he would be obliterated by his own gravitational field. Questions such as quantum loopholes and wormholes raise eyebrows as exceptions to the theories devised by Einstein in the 20th century. Does time travel back in time create irreversible effects, such as the grandfather paradox, or does each change create a new world line in which another parallel universe is created? Explore sci-fi ideas inspired by Star Trek, and the ideas given from Steven Hawking’s book ‘A Brief History of Time‘.
The world’s leading physicists explain the scientific possibilities of journeying through the past and future.
Discovery.Science.Ultra.Science.Time.Travel.PDTV.XViD-SomeTV
512×384, 136 kbps VBR MP3, 175MB
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Comments(22)
The way i see it is, if you travel faster than light you aren’t really travelling back in time, you could however view past events as you could get ahead of light form the past, just like the stars we see now aren’t their current state.
In theory if you have some sort of mega-telescope and can beat light speed you could travel out and look back at earth when all the land masses were one or witness the meteor that took out the dinosaurs, but you wouldn’t be able to take part in events.
So this is your theory then… maybe watch the show then decide. The human race is so pathetic really. we know nothing at all. I’m sick of all these theories that we make only to see smashed by someone else.
perpetual motion for instance. theory says its impossible. My father-inlaw is 3 weeks away from completing his Wheel. but until I see it spinning I wont convince my self that the theory is false.
its mind boggling to think about how little we have actually achieved and how much we have written on paper in theories.
cool time travel just up my alley.
Looks fun, I’m downloading.
chippxero: information cannot travel faster than the speed of light, meaning matter cannot. einstein saw this over a century ago, i dunno why people (mostly science spectators) are still obsessed about superluminal travel.
Eagle_Eye: you clearly do not understand how science works at all. Theories, in the scientific sense, are established by experiments and real-world data at the time of their creation; in this way, theories are calculated models and not just hypotheses which laymen take it to mean, in the broad sense. there is no smashing of theories; an older theory may be improved by a newer one, but not totally obliterated. just because einstein said nothing travels faster than light does not mean newtonian physics works: it does, but only in the low limit (low speeds). see, we construct a theory using experiments/data available to us at a certain point in time (as newton did several centuries back) and when we are capable of obtaining new data, we improve on the theory (like einstein did). in this way, by constantly fine-tuning the theory, scientists get to something eventually close to the truth. it is a very efficient and rigorous method, because the testing of such theory requires consistency when experiments are repeated.
we have actually achieved a LOT this last century, if you read a bit. our century has seen the most tremendous and drastic change in terms of landscape and technology among those that preceded it. give humans a break, will ya?
and oh, perpetual motion won’t work. it’s been known since the laws of thermodynamics were established, about uh couple centuries ago? what i dont understand is why we do not read already well-supported scientific explanations and instead dote on problems which bring us back a century or two. i mean, it doesnt hurt to ask a question (that’s encouraged), but ask the right ones.
sorry i meant “…does not mean newtonian physics DOES NOT work..” back there
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fy:
science is comprised of bothe hypotheses and theories. for a fact to be scientific it must be independently reproducible. one first develops (theorizes)an hypothesis first and then performs a test which (hopefully) validates the hypothesis. others then retest your hypothesis and get same or similar results.
theories such as time travel are not currently testable hypotheses except using mathematics, of which parts of the arguement are theories themselves. in essence, proving or disproving a statement based on non-factual foundational predicates is not science fact but theory, even if it is consensual theory.
sometimes a theory completely, or near completely, banashes an older line of thought. Einstein’s theory of relativity is one such science altering example. current string theory is an example of your “ever-changing because it’s not hard fact yet” theory. Pythagorus Theorum is pretty much hard, true and unchanging.
i do agree that will be change to a variety of “physics” questions in the future as new and better data is recognized, such as in astrophysics, sub-atomic physics and even global warming.
i do not believe that a million monkeys with typewriters given enough time will create shakespeare prose. billions of human’s have had nearly 400 years to do the same and failed miserably.
i think that this is just a waste of time 1.we should focus on much more important problems that our world has to face at the moment,i’m not saying that i’m against science ..but this is day dreaming. 2.don’t you think that if time travel is possible,this film would have been kept in some dark room ,in a
military base ?
chippxero:
i like the way you think. when we look at the stars or planets of the universe, what we see is what was however many light years ago happened. if the star is 1000 light years away from earth then we are seeing what took place 1000 light years at that precise moment we perceive the image since it took 1000 light years for that light/image to reach us.
if you were to travel in a space ship towards that planet/star, then you would see the image sooner than someone on earth but that image would ultimately represent a more recent view of the planet/star since you are getting closer and closer to the planet/star and the distance the image/light needs to travel to you gets less and less.
lets say a star 1000 light years away from earth goes super nova today. we won’t see that for 1000 light years, the time it takes for that image to travel from the star to earth. now let’s say that a sentient creature lives on a planet 500 light years closer to the super nova star. that creature would see the super nova 500 light years sooner than earthlings, and, by the time the earthling sees the super nova, the closer planet’s creature would have seen an additional 500 light years worth of what happened to the star after super nova-ing. that creature is not seeing the “future”, although it may seem that way to an earthling, he’s just closer to the action.
So, if you were able to travel faster than the speed of light you could travel from the just-super-nova-ing star and get to earth to tell astronomers of the impending super nova before it is seen on earth. you haven’t gone back in time, just beat time, so to speak.
one current theory on time travel requires formation of a black hole (small, controllable and portable no less) prior to when you want to travel back in time to. then, in the future, you open up a black hole and connect to the previous black in the past. exactly how one create a small/controllable/portable black hole, let alone how one survives being ripped apart on a subatomic level, hasn’t been worked out yet. exactly what happens to matter that enters a black hole isn’t known yet either.
Stay tuned.
I’m going to download this one.
So many people make brave comments about what we can and can not do.
I love doco’s like this!
For more interest in time travel investigate ‘John Titor’
while im a huge fan of docu’s, i have to say this one was among one of the worst. the “reputable” physicists they interviewed seemed laughable to me. and those cheesy star trek references and animations were awful. good effort though, mr. x. its good to see that some of you are trying….unlike mike. can someone please put a stop to him?
Holy cow, I am white and nerdy!
was not that bad at all.
WTF is with the White and Nerdy comment?
Yeah we know your a nerd, god Im proud I am wouldnt earn this much if I wasnt.
yeah… right… those leading physicists cannot even explain to this day what really is gravity, magnetism, electricity… where they come from, what they are, what is their real energy source… instead they tell this theoretical bullshit about timetravel just to look smart and busy
God damn trolls who rate this thing down
white and nerdy is a wierd al yankovic parody. WillyWanka, wow i really needed to learn _that_. thank you very much for the illumination. and that thing about looking at history when we see stars, very brilliant. you can also learn it in uh, elementary cosmology/astronomy. or common sense
ayd, i mos def agree. this is utter bullshit docu, but then i never expect anything credible from discovery anymore. the “physicists” featured were a joke! they should interview _real_ physicists who don’t just write pop sci books but actually also work. and these are _leading_ physicists? where the F do these docu producers come from? Happy land, where magical people live in gumdrop houses on lolly pop lane?
frisbee = chemistry degree, propulsion engineer
sarfatti = crackpot “physicist”
deutsch = actual physicist but works on quantum computation mainly
nimtz = experimentalist
only the last two deserve screen time. and really, the people to talk to about time travel are general relativists (carroll and thorne are among the accessible ones) but discovery wouldn’t even know about that, would they?
i’m sorry, but these shows are ruining physicists’ rep
ONLy tHe last deserve screen time..,
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i think guys do not download it is completer error file
get in touch on this page only
“sarfatti = crackpot ‘physicist’”
Jack Sarfatti has three physics degrees up to Ph.D. from Cornell and the University of California. It’s easy for an irresponsible person to slander someone on the net. Rather than attack a person personally one should point out which of Sarfatti’s ideas this person thinks is “crackpot”. The term is emotive, simplistic and simply conveys hostility and prejudice like the “N” word.