Is time Travel Possible?

Question

I think its already possible
for instance uno hwo people say omg i see a ufo! cant that be us from the future...pretend u where an acient roman if u see a jet flying through the air wouldnt u think its a ufo back then??!!?! whats your opinion!

Answer 1

Of course time travel is possible! I've spent many a day speculating of the possibilities of it in maths lessons when I should have been doing dull stuff like pie charts.
I won’t bore you with the details but the different possibilities I can see are these:

(1) Wormhole travel. Wormholes are proved to cover immeasurable distances, if you stepped into one you would not only be impossibly far away from Earth, you would also be quite a few years behind or in front of when you first stepped into the wormhole. If we could harness a wormhole and make it so long, that it loops back round to the original spot you were standing in and back/forward a few years then: HORRAY! Time Machine! This time travel is: PROVED.

(2) Sending waves of information across time.
We all know that we can send radio waves across space, but what about across time? Scientists in Canada believe to have a theory. If they can create lasers that will bounce off several different mirrors simultaneously in a circular shape, they can create a makeshift wormhole similar to (1) that they can send information like radio waves and digital data down into the future. You can't, however, send into the past any further that when you first switched the machine on. Most likely, when someone firsts switches the device on, they will get numerous transmissions from the future trying to get in touch.
This time travel is: Theoretically Proved.

(3) Time travel within the 4th dimension.
I'm sure that if you've asked this question, you'll know about the 4th dimension. H.G Wells, Doctor Who, that sort of thing. Put it this way: Dimension=D, the 1st D is a straight line or forwards and backwards OR left and right. The 2nd D is a flat shape or left and right AND forwards and backwards. The 3rd D is depth, e.g.: a cube, which is the 1st D, the 2nd D and up and down rolled into one.
We can control all these D's, but when it comes to the 4th D, which is the controller of the three said D's, time, we are prisoners. I have no idea how you would create a way of travelling through this D, but there may be a way...
This time travel is: Unproved.

I hope this helps, yes, I must have an awful lot of time on my hands, but I am COMPLETELY fascinated with time so I thought I'd share my speculations...

Answer 2

First you build a ship that can withstand heavy radiation, then send it into a black hole at the speed of light, and under the "EVENT HORIZON" Just like in SPHERE by Michael Crichton. BUT WE SHOULD NOT TRAVEL THROUGH TIME! because to do so would change the past (& the future) and we would then not exist anymore! Just like in "A SOUND OF THUNDER" All it takes is for you to step on a bug in the past and that bug can't breed, and can't pollinate a flower, which is a home to something else, which MIGHT have given a MOUTH FULL OF FOOD TO THE LAST PRIMATE WHICH MADE THE HUMAN RACE!
UFOs obviously don't want direct contact with the human race, so we'll never know until we catch one. Because it's just as possible they would be aliens. We could have many different kinds of UFOs from aliens, to men coming back in time, to aliens coming back in time, to Men NOT going back in time ACTING like they are!

Answer 3

Opinions don't matter.
The answer is yes and no.
We can change the rate at which time progresses, by changing our speeds relative to the speed of light. The faster an object moves, the slower time progresses for it. So time can go forward at different rates, but "time's arrow" dictates that time can only move forward, and that's been mathematically demonstrated. It'd be cool if we could go back in time, but we can't. We can only vary the rates at which we go forward, and even then we can't speed time up, we can only slow it down.
It's quaint how you "think this is already possible", but I'm sticking with what I already know as a scientist and with the mathematics of the situation. Your opinion doesn't count, science and the rules of the universe are not determined by a democratic vote. We just have to understand them the way they are.

Answer 4

People in the past recorded seeing mythical creatures, not UFOs. UFO sitings became more comon when science fiction stories were being written about spaceships. There's just no verfifiable proof that UFOs, whether they be extraterrestrial or future humans, have ever visited the earth.

Answer 5

TRAVEL TO THE FUTURE IS THEORETICALLY POSSIBLE!!

Einstein proved that if you could accelerate yourself to light speed time travel to the future would be possible. Say for example you have a spaceship that can travel at near light speed. Traveling at 99% lightspeed for 10 years, you would have aged 10 years but back on earth close to a hundred years have past. So you bring your space shuttle out of near light speed and poof you're in the future.

Now going back in time IS IMPOSSIBLE because of the parradox of past interaction. Butterfly sneezes paradox. and the Grandfather parradox. but you never know with wormholes, blackhole, and gavitational anominies.


BTW we just traveled two minutes into the fututre together, neat huh?

Answer 6

No. If those UFO's were from the future, why would they just fly around and not land?

Answer 7

I have never thought of it that way... I guess it could be possible for object from the future to enter some sort of a time warp and come back to our time... cool!

Answer 8

YES in a single course: the long run. To accomplish that, you wish to have an overly rapid spaceship which will journey to a vast fraction of the pace of sunshine. You will enjoy time contraction alongside the next components t' = root (one million -v^two/c^two)*t wherein t' is the time you enjoy t is the time skilled through a desk bound observer (e.g earth) v is your pace c the pace of sunshine. For illustration if you happen to have been to journey at 10% of the pace of sunshine, you might enjoy a time contraction of ninety nine.498% Not very spectacular. But at 50%, time contraction might be 86.60% at ninety%, it might be forty three.fifty eight% at ninety nine%, it might be 14.10% at ninety nine.nine%, it might be four.forty seven% So if you happen to might get a spaceship to arrive ninety nine.nine% of the pace of sunshine, and preserve this pace for four.forty seven years, in your go back to earth one hundred years might have long past through. Fly for forty four.7 years, and are available again to earth one thousand years later. So in PRINCIPLE you CAN journey FORWARD in time. Practically there are a few snags. With growing pace , identical to time contracts, your mass augments within the identical share (e.g. if time runs 10x slower, your mass is 10x larger. So to enjoy the identical drive in your seat, you might ought to lower your acceleration because your mass improved (do not forget F=ma). Also it might turn out to be more and more complicated to transport at the ones speeds and most likely your frame might endure severe trauma (for illustration each and every heartbeat might require so a lot more vigour).

Answer 9

What time was it 1 minute ago? What about now?

You just traveled through time....

Going forward in time is easy -- going backward is the hard part.

Answer 10

nah i dont think its possible yet not impossible but if we could do it itd be dangerous, thered be a possibility of infinite loops and paradoxes and u could jus drastically screw up the past but then if u were to change the past then thats how things would have played out anyway and there would have been nothing to change i the first place. paradoxes galore