History Main / TimeDilation

23rd Jun '16 9:01:27 PM Amaryllis
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* In ''Webcomic/{{Relativity}}'', Irina's light speed mission will last six months for her, and three years for her wife Anne.

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* In ''Webcomic/{{Relativity}}'', Irina's light speed mission spaceflight will last six months for her, and three years for her wife Anne.
23rd Jun '16 8:59:42 PM Amaryllis
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* In ''Webcomic/{{Relativity}}'' Irina's light speed mission will last six months for her, and three years for her wife Anne.

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* In ''Webcomic/{{Relativity}}'' ''Webcomic/{{Relativity}}'', Irina's light speed mission will last six months for her, and three years for her wife Anne.
23rd Jun '16 8:58:08 PM Amaryllis
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* In ''Webcomic/{{Relativity}}'' Irina's light speed mission will last six months for her, and three years for her wife Anne.
-->'''Anne:''' I'll be older than you when you get back. [--Gah that's so weeeird...--]
6th Jun '16 8:18:45 PM KingCrInuYasha
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* "Benson, Arizona", the opening and closing theme to ''Film/DarkStar'', is about a space trucker who uses faster-than-light travel, and time-dilation effects are mentioned in some of the lyrics ("The years go faster than the days", "Now the years pull us apart, I'm young and now you're old").
5th Mar '16 3:13:17 AM Morgenthaler
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* In SergeyLukyanenko's ''LineOfDelirium'' trilogy (very loosely based on ''VideoGame/MasterOfOrion''), all ships must decelerate before exiting hyperspace. Failure to do so would result in the ship exiting at near-light speeds and experiencing extreme time dilation. There are also cases of warships escaping from battle using their sublight engines, being forced to accelerate to near-light speeds when their hyperdrive is damaged. The crew of one such human warship commits suicide when they find themselves in a post-war galaxy over 100 years after they left.

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* In SergeyLukyanenko's ''LineOfDelirium'' Creator/SergeyLukyanenko:
** ''Literature/LineOfDelirium''
trilogy (very loosely based on ''VideoGame/MasterOfOrion''), all ships must decelerate before exiting hyperspace. Failure to do so would result in the ship exiting at near-light speeds and experiencing extreme time dilation. There are also cases of warships escaping from battle using their sublight engines, being forced to accelerate to near-light speeds when their hyperdrive is damaged. The crew of one such human warship commits suicide when they find themselves in a post-war galaxy over 100 years after they left.



* In the ''StarTrekExpandedUniverse'' novel ''Enterprise'', Uhura uncovers that the reason why Janice Rand seems so nervous and inexperienced is that she's chronologically just 16 years old. When she was a child on a civilian ship, the warp drive was damaged and the ship had to accelerate to high relativistic sublight velocity to reach the nearest starbase, meaning she didn't age in time with her calendar age. Because this is such a rare occurrence, Starfleet apparently never thought to log the discrepency.

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* In the ''StarTrekExpandedUniverse'' ''Franchise/StarTrekExpandedUniverse'' novel ''Enterprise'', Uhura uncovers that the reason why Janice Rand seems so nervous and inexperienced is that she's chronologically just 16 years old. When she was a child on a civilian ship, the warp drive was damaged and the ship had to accelerate to high relativistic sublight velocity to reach the nearest starbase, meaning she didn't age in time with her calendar age. Because this is such a rare occurrence, Starfleet apparently never thought to log the discrepency.
25th Feb '16 11:36:32 AM StarSword
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In fiction, this effect is often used to facilitate a variation on MayflyDecemberRomance, with the earth-bound partner as the "short-lived" one compared to the space traveller. Such plots can also involve a familial relationship instead of a romance -- in this case, the earth-bound character is usually the space traveller's twin or child.

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In fiction, this effect is often used to facilitate a variation on MayflyDecemberRomance, with the earth-bound partner as the "short-lived" one compared to the space traveller. Such plots can also involve a familial relationship instead of a romance -- in this case, the earth-bound character is usually the space traveller's twin or child.
child. On a lighter note, it's also often used for some version of a StockJoke about how annoying time dilation can make keeping track of time.
4th Jan '16 8:29:45 AM ChronoLegion
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** It's stated in the pilot that the time dilation effect was amplified by the usage of ArtificialGravity aboard the ship.
4th Jan '16 8:28:05 AM ChronoLegion
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* A major plot point of ''Film/{{Interstellar}}'' involves the gravitational dilation of time around a black hole.

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* A major plot point of ''Film/{{Interstellar}}'' involves the gravitational dilation of time around a black hole. [[spoiler:The first case happens on Miller's planet, which is located very close to the black hole, which means that an hour on the planet's surface is equal to 7 years on the outside. Cooper and Brand spend only a short while on the planet. Upon their return to orbit, they meet Rommily, who has been waiting for them for 23 years and didn't think they were coming back. Later, Cooper attempts a SpaceshipSlingshotStunt around the black hole. Upon exiting the event horizon, he comments that this maneuver just cost them 51 years (for the people back on Earth), while taking only minutes for the ship. By the time Cooper is reunited with the rest of humanity, he finds out that he is officially 125 years old, while still looking to be in his 40s. His son has died decades ago, and his daughter is on her deathbed.]]
18th Dec '15 2:52:31 AM gallium
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Time dilation is a scientific concept related to UsefulNotes/{{relativity}} which states, basically, that for an observer aboard a spaceship travelling at any speed at all (though only noticeable at appreciable fractions of the speed of light) with respect to Earth (or any inertial reference frame of your choice), time passes more slowly than it would for an observer on Earth. When near-lightspeed travel becomes involved, the effects become quite drastic: A person might go on a space journey that seems to him to last one year and, on returning, find that 10 years have passed on Earth. This is sometimes extrapolated by science fiction authors to apply to FTLTravel as well, though this does not make much sense physically.

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Time dilation is a scientific concept related to UsefulNotes/{{relativity}} which states, basically, that for an observer aboard a spaceship travelling at any speed at all (though only noticeable at appreciable fractions of the speed of light) with respect to Earth (or any inertial reference frame of your choice), time passes more slowly than it would for an observer on Earth. When near-lightspeed travel becomes involved, the effects become quite drastic: A person might go on a space journey that seems to him to last one year and, on returning, find that 10 years have passed on Earth. This is sometimes extrapolated by science fiction authors to apply to FTLTravel as well, though this does not make much sense physically.
It is, in effect, TimeTravel, but only in one direction--the future--with no way back.



Note that though many writers extend this so traveling faster than light means aging backwards, that isn't how the math says it works. The time scale factor for speeds faster than ''c'' is imaginary, not negative. However, if an object is travelling faster-than-light that means there is always some slower-than-light frame reference that sees the object travelling backwards in time -- or possibly moving in the opposite direction, with events on the object occurring backwards[[note]]This, contrary to popular belief, would not imply TimeTravel: an observer still exists that sees events happening in the "proper" order. Trouble is, both types of observers -- those that see our superluminal buddy going forwards and those that see him going backwards -- can simultaneously exist. And they do not agree on the relative order of events. Woe and behold, causality is thrown out the window in a much harsher way than any Grandfather Paradox ever dared attempt.[[/note]]. TheOtherWiki has [[http://en.wikipedia.org/wiki/Tachyon an article]] on tachyons, theoretical objects that move faster than the speed of light, and explains how this works.

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Note that This is sometimes extrapolated by science fiction authors to apply to FTL Travel as well, though many this does not make much sense physically. Many writers extend this so traveling faster than light means aging backwards, that isn't how the math says it works. The time scale factor for speeds faster than ''c'' is imaginary, not negative. However, if an object is travelling faster-than-light that means there is always some slower-than-light frame reference that sees the object travelling backwards in time -- or possibly moving in the opposite direction, with events on the object occurring backwards[[note]]This, contrary to popular belief, would not imply TimeTravel: an observer still exists that sees events happening in the "proper" order. Trouble is, both types of observers -- those that see our superluminal buddy going forwards and those that see him going backwards -- can simultaneously exist. And they do not agree on the relative order of events. Woe and behold, causality is thrown out the window in a much harsher way than any Grandfather Paradox ever dared attempt.[[/note]]. TheOtherWiki has [[http://en.wikipedia.org/wiki/Tachyon an article]] on tachyons, theoretical objects that move faster than the speed of light, and explains how this works.
14th Aug '15 9:30:38 PM wootzits
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* ''SoukouNoStrain'', since there's no FTL travel in the series.

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* ''SoukouNoStrain'', ''Anime/StrainStrategicArmoredInfantry'', since there's no FTL travel in the series.
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