Is there such a thing as a time machine? Like a real one?

Question

I just want to know... heh.. i know its a stupid question...

Answer 1

No, I don't think it's a stupid question.  Time machines don't exist.  Time travel is impossible.  This isn't like when people said, "Oh, you'll never be able to build a heavier than air flying machine," or "The speed of sound can't be broken."  This one really is impossible.  It violates the fundamental laws of the universe.  You cannot have an effect preceding its cause.  That is basically what a time machine would have to do.

Answer 2

I wish I had a time machine so I could go back in time and prevent u from asking this question in the first place.

Answer 3

Actually, it's not a stupid question. Albert Einstein once pondered the possibilty of time travel. At some point in the future, time travel to the future may be possible. All it would take is an apparatus that can make extreme accelerations surviveable for humans, and it would need to have a good energy source to boost it to extreme speeds. Einstein claimed that as a body's velocity approaches the speed of light, time will slow down, and at the speed of light it will stop. If we are able to build a spacship that will fly us to outer space at a nice fraction of the speed of light, time for the spacecraft will tick slower than those on earth. For example, if you leave earth in the ship at say 99% the speed of light, a 5 hour trip into space and back will bring you to Earth where, not 5 hours, but 5 million years have elapsed due to the time dilation. As for travel to the past, this is completely impossible. Einstein's equation for time dilation is as followed. t'=Δt/sqrt(1-v^2/c^2) where t' is the dilated time, v is the velocity of the object moving relativ to you, and c is the speed of light in a vacuum. As you can see that in order to make time flow in a negative direction, v must be greater than c. There is just one little problem with this, once a massive body reaches the speed of light time will STOP, length will contract to 0, and mass becomes infinite(as specified by Special Relativity). To add to that, if v is greater than c you would be taking the sqrt of a negative number. So there is no possible way to travel backward in time through motion. There is however been theories about traveling backwards in time by ripping spacetime, but like the previous, Einstein's theory of General Relativity makes it impossible. Maybe one day we will find a way that satisfies Einstein's theories, but for now its safe to say it is impossible.

Answer 4

It is entirely possible to design, even build, a time machine.  In fact, it's not terribly complicated at all.  There are, however, two major problems.

The first problem is that you can only go forward in time.

The second problem is that the staggeringly enormous amount of power required to send so much as a single person into the future is probably more than all the energy ever used by humanity in recorded history.

Answer 5

No. And yes, that was a stupid question.

Answer 6

No

Answer 7

If a watch count's as a time machine which is should as it is a machine that keeps time then the answer is yes. You can be a chaep one at Wal-Mart.

Answer 8

No time machine like in the movies.

But when you use a vague term such as "time machine", you leave it open for generous interpretation:

- a DVR is a time machine as it repeats the past as often as you want it to

- a watch is a time machine (its a machine that tracks time)

- a telescope is a time machine because it looks back in time (light takes time to travel from distant objects to our eyes)

- a spaceship (and even an jet airplane) is a time machine (if you go fast enough, time moves more slowly for you than for someone on the surface)

Answer 9

Yes, there is!  

But it's only a VISUAL one!

It's called the Hubble Space Telescope, and it can "see" back in time all the way to just before the "Big Bang" occurred!  

This isn't entirely correct, however, as ANY telescope can look back in time to other planets (e.g., Mars, 5-20 minutes, Jupiter, 45 minutes, Saturn, 1 1/2 hours), and to other stars (from 4 years to thousands of years), and the Andromeda galaxy (our nearest galactic neighbor), and the furthest naked-eye object in the nighttime sky, 2.5 million years!

In other words, when one sees the Andromeda galaxy, he/she is looking at the galaxy as it appeared 2.5 MILLION years ago.

But, as far as an ACTUAL machine that can travel through time, like "Back to the Future", and "Bill and Ted's Excellent Adventure", the answer is no.

And, no, there's NO SUCH THING as a stupid question!

(Only Dumb Answers)!

But I would have to say though, that I think a TELEPORTER machine would be a LOT more practical!

(And, possibly, more realistic)!

Answer 10

No, are you new here?

Answer 11

I would answer that but then I would have to erase it from your mind

Answer 12

There are TYME machines in Wisconsin for letting you get money out of your bank.

They let you "take your money everywhere."