Time travel?

Post by **andyman** » Mon Dec 05, 2005 3:27 am

Don't forget the crystals

Post by **mjrpes** » Mon Dec 05, 2005 3:29 am

Foo wrote:
Jackal wrote:Roads? Where we're going we don't need roads.
Did you know peanut butter was invented by a black man?

too late, doc.

Post by **SplishSplash** » Mon Dec 05, 2005 6:26 am

hax103 wrote:
Well, its easy to travel forward in time (in theory), get up to near speed o light then come back.

shit yea, I do it all the time!

Post by **Grudge** » Mon Dec 05, 2005 7:29 am

Relativity.

Post by **FragaGeddon** » Mon Dec 05, 2005 8:06 am

Survivor wrote:It isn't timetravel. Let's say a the wright brothers take of for a 20 mph hour flight in our direction from 200 miles away. Now schumi steps in his ferrari from the same spot and arrives at our position here in 1 hour to tell us they lifted off. Is that time travel?

Nope. I think the only time you could actually time travel is if you travel faster than the speed of light.
Just because you beat someone to point b isn't time travel.

Post by **FragaGeddon** » Mon Dec 05, 2005 8:10 am

The astronauts time travel a wee bit actually.
I think when they come back to Earth, they are a second younger than as to what they would have been if they stayed on Earth.

Post by **Grudge** » Mon Dec 05, 2005 8:25 am

Time dilation

http://en.wikipedia.org/wiki/Time_dilation

Post by **Whiskey 7** » Mon Dec 05, 2005 11:51 am

FragaGeddon wrote:The astronauts time travel a wee bit actually.
I think when they come back to Earth, they are a second younger than as to what they would have been if they stayed on Earth.

Yes I have heard the same

Someone already had the answer, it's all relative.

Post by **tnf** » Mon Dec 05, 2005 11:50 pm

Time is relative to the velocity you are traveling at.

Post by **MidnightQ4** » Tue Dec 06, 2005 12:07 am

What I think he is getting at is this:

Since travelling 300 million light years in only 100 years means that they went much faster than the speed of light, does that mean they traveled through time? And the answer is yes. When you move from point A to point B faster than light can make the trip, then effective you have broken the laws of physics/relativity and you have moved forward in time compared to someone moving slower or at the speed of light. To that person you would appear to have just "popped" into point B at whatever time you arrive there or slow down to less than light speed.

Post by **MidnightQ4** » Tue Dec 06, 2005 12:10 am

Also did you know that time moves faster in gravitational fields? Or more correctly it is warped by gravity? Scientists have proved and measured differences in time at higher lower elevations from earth. So if you work in the top of a sky scraper, you will gain a few seconds of extra life over the guy who works in the mail room all his life in the basement. Now if that's not reason enough to climb the corporate ladder I don't know what is

Post by **plained** » Tue Dec 06, 2005 12:33 am

everybody are currently traveling in time.

some faster than others even :doying:

Post by **MKJ** » Tue Dec 06, 2005 9:32 pm

MidnightQ4 wrote:Also did you know that time moves faster in gravitational fields? Or more correctly it is warped by gravity? Scientists have proved and measured differences in time at higher lower elevations from earth. So if you work in the top of a sky scraper, you will gain a few seconds of extra life over the guy who works in the mail room all his life in the basement. Now if that's not reason enough to climb the corporate ladder I don't know what is

this post holds about the same amount of value as midnights patriot-posts.

Post by **Turbine** » Tue Dec 06, 2005 9:58 pm

I see that no one has (have they) mentioned an experiment done with atomic clocks.

One was in a stationary point on Earth and the other in a Satelite. Both where set at exactly identical times. After a given amount of time has elapsed, they took a reading from both clocks.

In the results that followed the experiment they found out, as predicted, that the faster moving clock in the Satelite was slightly behind the one on Earth. The difference was measured in microseconds.

Thus meaning; The faster you move, the slower time passes by for you, as observed from another point of reference.

Time Travel? No, Theory of Relativity? Yes. Mind Blowing? Possibly.

If you now look at this with different variables, you get some outstanding results. Lets take one supperfast speed of light spaceship. It can travel at the speed of light. (no, really?) Now you take this ship and fly in a straight line, oway from Earth, for 10 years, Now you stop and turn around, and travel straight back to earth for another 10 years. After you have completed this speed of light voyage. Twenty (20) years have passed by you. But as you open the hatch, and walk the Earth again, you found out that it is now 240 years since you flew of on your mission, from the planet.

Now this still is not time travel, and it is absolutely completly possible to do, all you need is a speed of light ship. It still hangs on the border of what time travel is. Sign me up!

Post by **hax103** » Wed Dec 07, 2005 12:38 am

old. Also physicists would consider the situation with an astronaut leaving earth near speed of light and coming back a thousand years later (Earth-time) to be forward time travel.

Turbine wrote:I see that no one has (have they) mentioned an experiment done with atomic clocks.

One was in a stationary point on Earth and the other in a Satelite. Both where set at exactly identical times. After a given amount of time has elapsed, they took a reading from both clocks.

In the results that followed the experiment they found out, as predicted, that the faster moving clock in the Satelite was slightly behind the one on Earth. The difference was measured in microseconds.

Thus meaning; The faster you move, the slower time passes by for you, as observed from another point of reference.

Time Travel? No, Theory of Relativity? Yes. Mind Blowing? Possibly.

If you now look at this with different variables, you get some outstanding results. Lets take one supperfast speed of light spaceship. It can travel at the speed of light. (no, really?) Now you take this ship and fly in a straight line, oway from Earth, for 10 years, Now you stop and turn around, and travel straight back to earth for another 10 years. After you have completed this speed of light voyage. Twenty (20) years have passed by you. But as you open the hatch, and walk the Earth again, you found out that it is now 240 years since you flew of on your mission, from the planet.

Now this still is not time travel, and it is absolutely completly possible to do, all you need is a speed of light ship. It still hangs on the border of what time travel is. Sign me up!

Post by **MidnightQ4** » Wed Dec 07, 2005 3:49 am

Turbine wrote:I see that no one has (have they) mentioned an experiment done with atomic clocks.

No but I just mentioned the same thing a few posts up lol! Just didn't go into how they did the experiment.