Question About Time Travel - Topic

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Apr 18 2010 09:33pm

Quote (Krassen @ Apr 18 2010 09:53am)

going the speed of light will get u forward in time right? (the future) so y isnt light constantly traveling to the future and leaving us behind is what i meant.

because light cannot travel faster than the speed of light. lol. or at least thats what i think.

Quote (Azrad @ Apr 17 2010 07:21pm)

Reading what you wrote it seems you are inferring some kind of absolute reference time. This is a mistake. All we can really do is state how much time passed for you, and how much time passed for everyone else. Trying to figure out how much time "actually passed" will get you into trouble quickly. In the example I gave you would think 100 seconds passed. the people on earth would think 100 years passed. You would return to earth and most of your friends would likely be dead from old age but you wouldn't have aged (ok you aged 100 seconds, but nothing noticeable). This happens all the time actually. If you had a pair of super accurate clocks, and left one with your friend while you took the other one to the store in your car, when you returned there would be a slight difference. You would have experienced every so slightly less time than your friend. This effect has been measured with atomic clocks on jet planes.

this is very interesting. you seem very educated on the topic. how so? i love learning about these kinds of things.

ZvLoD

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#32

Apr 19 2010 02:10am

If you could travel to a star and back 500 light years away at 99.995% the speed of light, the Earth would be at least 1,000 years older.You would have only aged 10 years.
Astronauts time travel frequently. Story Musgrave spent 53.4 days in orbit around the Earth. He was a milisecond younger then he would've been if he stayed on Earth.
If you traveled .01 light years away from Earth and returned at 1% of the speed of light, you would be 8.8 hours younger if they hadn't gone.

To travel backwards in time is all theoretical. You could "somehow" create a wormhole, or find a theoretical cosmic string millions of lightyears across and attempt to snap it back like a rubber band and somehow pass through the ends as they met.
Both of these would require so much energy and mass that they would probably create a black hole, and then you'd still be screwed.

undertow85

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#33

Apr 19 2010 08:40am

Nah actually there working on a machine to look into the past instead of actually going there using plasma and shits crazy

Krassen

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#34

Apr 19 2010 11:14am

Quote (cletus7seven @ Apr 18 2010 11:33pm)

because light cannot travel faster than the speed of light. lol. or at least thats what i think.

this is very interesting. you seem very educated on the topic. how so? i love learning about these kinds of things.

isnt going faster than light going back in time? going the speed of light is going in the future...?

mesn1604

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#35

Apr 19 2010 02:18pm

hmm, i believe no one would show up in te first place, because you already told him to alter something, meaning he would never have existed, then he would not be able to tell you anything if he didn't exist.
get my logic?

juliusjuice

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#36

Apr 19 2010 04:10pm

Quote (Krassen @ Apr 19 2010 12:14pm)

isnt going faster than light going back in time? going the speed of light is going in the future...?

travelling at the speed of light time stops. you can travel for 100 years and not age a second. question: how the hell would you stop?

there are parcticles that we believe travel faster than the speed of light. the crew at LHC thinks they detected higgs bosons before they started any experiments. (they travelled back in time, staying in the same tunnel).

BLeming012590

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#37

Apr 19 2010 04:51pm

i volunteer myself for black hole exploration

Azrad

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#38

Apr 19 2010 09:28pm

Quote (BLeming012590 @ Apr 19 2010 03:51pm)

i volunteer myself for black hole exploration

Maybe you should read up on "spaghettification" before you volunteer :evil:

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

BLeming012590

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#39

Apr 20 2010 12:41am

Quote (Azrad @ Apr 20 2010 03:28am)

Maybe you should read up on "spaghettification" before you volunteer :evil: http://en.wikipedia.org/wiki/Spaghettification

pfff

if i go to some sweet dimension who cares they probably have a cure for that

if anything i'll just flex, i know it says "nothing" can withstand it, but pfff nigga ain seen me yet

juliusjuice

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#40

Apr 20 2010 02:42am

i think you would indeed end up in a never before explored condition. you would be ripped apart before you knew it and scattered across a whirlpool of the similar. endlessly speeding up toward the center which you will never reach. if there is another side, little or no matter actually reaches the "hole" (or comes out of the 'white hole' on the 'other side'). some theorize the energy that passes through the "hole" is gravity itself, which we dont understand at all.

fathom this: if the entire earth was compacted to equal density of a black hole it would be the size of a thumbnail. the enormous stars that create black holes are much much bigger than the sun. after they expire and collapse (black holes exert much much less energy than the star that they were) they shrink to a size much less than the moon -which is relatively insignificant in size.

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