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what is preventing america from making a time machine? I don't get it! Just a thought. I mean, it wold b pretty cool to go back in time.

2007-03-27 08:59:00 · 28 answers · asked by Anonymous in Science & Mathematics Astronomy & Space

28 answers

Scients believe that ,they can make it.But the problem is, they need the capacity to move the object at the speed of light.And now that kind of velocity is produced only in the the black hole .And there is no way to go near a black hole. After all its a time machine ,it will take time.

2007-03-27 09:31:21 · answer #1 · answered by ⇐DâV£ MaΧiMiÅnO⇒ 6 · 0 0

Perhaps we can travel forward in time - if travelling through space (with some currently unknown technology) for 2 hours at a speed close to light speed then when we return to earth in that 2 hours 2 years had passed??
As for going back in time, can't be done and even if it could be done and you altered a history changing event that would be a different space time continuim than the one you left meaning those you left behind still go down that old path whereas you created a new path.

2007-03-27 23:25:45 · answer #2 · answered by Selfish Sachin 6 · 0 0

in theory, it is very possible to make a time machine.
however, time is a vector. that means that the smallest amount of time can be measured ( 1 second or even less than that) and time tends to travel only in one direction ie the forward direction. people are born, they grow up, start to age and then die. you never see it happen in the reverse direction.
therefore, to use a time machine means that you're tearing the fabric of time, reversing events. u might just go back in time, to before when u were born, and so that would produce a problem because u wouldnt be alive yet.
if u carry a grudge against ur great grandfather and go back in time and kill him, then ur grandfather wouldnt exist, ur father/mother wouldn't exist either and consequently u wouldn't be alive.
such problems should be avoided by not building a time machine. so even if scientists want to, there are huge, unimaginable circumstances to deal with first.

2007-03-27 16:39:10 · answer #3 · answered by amandac 3 · 0 0

If you have any ideas on how to do it, I'm sure you will become a gazillionaire in no time.

We can build a spaceship and send it into orbit around a very massive object, like the black hole at the core of our galaxy. The trip would only take a hundred million years or so, but once it gets there, and parks real close to the black hole, the time for those on board will tick a lot slower than the time passes on Earth. Once the spaceship turns around for its 100 million year leisurely cruise back to earth, it will not be 200 million years later on Earth, it will be more like a billion years later. So the spacecraft has traveled into the Earth's future by parking next to a massive object for a while. Not very practical though, is it?

It's even more difficult to travel into the past.

2007-03-27 16:07:09 · answer #4 · answered by Anonymous · 0 1

there was an episode of this american life a few weeks ago with a fascinating story about this guy who devoted his whole life to making a time machine so that he could go back in time to see his dad who dies when he was young. He went to college and became a very respected phisicist. I believe he actually made some kind of time machine but he could only send things back to when the machine was turned on. it was a really good episode.

2007-03-27 16:21:37 · answer #5 · answered by sssnole 4 · 0 0

Time travel is an abstract concept and although Einstein has shown in theory it is possible, a human being being able to do it is not possible at the moment and most likely never will be.

In order to travel in time, (backwards only - forward is not possible because it hasn't happened yet), you'd need to enter a wormhole in space, or be able to travel faster than the speed of light - which is 186,000 miles per second. Nothing we have is able to travel at that speed. It would take a certain number of elements which are not found on Earth. Plus, even if we did have the elements, traveling at 186,000 miles per second, we'd be ripped to shreds because we're just not equipped to handle that kind of speed.

2007-03-27 16:12:46 · answer #6 · answered by Anonymous · 0 0

For all we know, it could be completely impossible to travel through time. Besides, to travel through time, you wouldn't actually be traveling through anything, so how would you start?
Unless there's some alternate dimension where time moves at a different speed or something, I don't see how scientists could even comprehend how to go about time-traveling, let alone create a machine that could do it. Sure, there might be wormholes out in the universe that might transport things through time, but we aren't even close to that yet. Oh well.

2007-03-27 16:09:32 · answer #7 · answered by *Head in the stars* 3 · 0 0

Because General Electric was bought out by Thompson and THEY decided to stop making Diphasic Chronon Valves because of the expense and reliability issues. So time machines can't be calibrated anymore, not until the patents expire.

2007-03-27 17:17:17 · answer #8 · answered by skepsis 7 · 0 0

dont u think it would be dangerous for everyone to have access to this?? especially people that are destructive, like terrorists??? it isnt necessarily a good thing.... one small change can probably affect a lot more than u think, and maybe even in a negative way...
did u not SEE back to the future!?!?

but other than that, i would like to use it lol.... and no, i dont think a time machine is possible to tell u the truth...

2007-03-27 16:47:24 · answer #9 · answered by DevilsKitty 2 · 0 0

Neither relativity nor quantum mechanics forbids time travel. Therefore it is not theoretically impossible. The fact that people from the future have not visited us is troubling. So one of two possibilities:
Maybe they have visited us. UFOs??
Maybe we blow ourselves up before someone invents a time machine.

2007-03-27 16:11:30 · answer #10 · answered by Jabberwock 5 · 0 0

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