The time-travel tag has no wiki summary.
4
votes
4answers
150 views
Do parallel realities take precedent over time travel in the Star Trek Universe?
The 2009 Star Trek movie and it's pending sequels are based on the concept of parallel realities introduced in the season 7 Next Generation episode "Parallels," laying out that anything that could ...
2
votes
1answer
81 views
Time War Time Lock
In Doctor who, there was a war between the Daleks and the Time Lords, because of the technology the Time Lords possessed, the misused the powers during the war with the Daleks.
Q. When the Time Lock ...
2
votes
1answer
38 views
What order to read Kage Baker's “The Company” books, novellas and short stories
There are 9 books, 4 novellas, and short stories written by Kage Baker in her "The Company" universe. I'm wondering what order to read them in. It is especially confusing because they are about time ...
4
votes
3answers
213 views
In Back to the Future, why was the energy to travel in time 1.21 jigowatts?
I asked why the speed was 88 MPH, and it made a lot of sense.
Now I want to ask: Why does the Flux Capacitor need 1.21 jigowatts to travel in time? Is this a magic number?
6
votes
1answer
78 views
Story about a soldier displaced into a fantasy world with elves and dragons
I hardly remember, but if I do recall correctly... In the beginning of the story a man, a soldier, is in a war and enters some sort of time warp by mistake. He ends up in some sort of fantasy world ...
7
votes
1answer
122 views
Young adult novel about time travel
I'm trying to remember the title of a book I read in fifth or sixth grade, meaning it would have to have been published in the mid-90s or earlier. It was a young adult or maybe even children's novel. ...
8
votes
3answers
695 views
Does the Doctor come from the future or the past?
With all the time travel, it's hard to tell. I made a quick search and the information is not available in Wikipedia and TARDIS.wikia. (Well, if it's there, I missed it.)
Are there any clues that ...
0
votes
0answers
73 views
I have a slight need to discuss my latest work … [closed]
http://www.nicholaslawson.com is a place where my latest science fiction piece has been posted. If it is within the scope of this forum I want to share my work with you otherwise please down vote the ...
4
votes
1answer
131 views
Title of a sci-fi book with time-travel and sentient dinosaurs
I'm trying to remember the title of a book I read approximately 15 years ago. My memory of the plot is a bit hazy, but it centered around time-travel. If I recall correctly, in the story people ...
3
votes
1answer
171 views
Is there an explanation for Amy Pond's selective remembering of people?
Important: I have only watched until Season 5 (The Big Bang). If you spoiler anything from Season 6, I will hurt you. ;)
Also, this question basically spoilers the main Season 5 story-arc.
To the ...
11
votes
2answers
363 views
In Back to the Future, why was the speed 88 miles per hour?
Why not use 89, maybe 100 miles per hour? Is 88 the fast a DeLorean can go? In other metrics, I have:
Miles per hour 88.00 [mph][mi/h]
Miles per second 0.0244 [mps][mi/s]
Yards per ...
2
votes
1answer
69 views
How did Garth manage to avoid the Grandfather Paradox?
In Cyborg 2087, Garth travels back in time and ends up preventing his own existence, a prime example of the Grandfather Paradox in action. If that's the case, how was he able to even go back in time ...
2
votes
1answer
123 views
Was “Back To the Future” the breakthrough of mainstream Time-Travelling science fiction in Hollywood?
Recently, a remake of this movie was made in the language of Hindi and the TV reports (in Hindi) said what can be translated in English as: "Back to the future was the movie to ...
8
votes
2answers
381 views
Why didn't the T-1000 travel farther back in time?
I still don't understand why the T-1000 went back in time to well after the original T-800's attempt at assassinating Sarah Connor. Why didn't it just get sent back to right after this failed attempt?
...
7
votes
1answer
218 views
How did the T-1000 avoid the bootstrap paradox?
I have watched Terminator 2 several times now, but there is one major problem with it that has been bothering me. The Terminator* was sent back in time to (unsuccessfully) assassinate Sarah Connor, ...
3
votes
1answer
81 views
How was the new batch of people transported to Terra Nova after destination time increment?
From the question: Why did the people of 2149 evacuate to 85,000,000 B.C. particularly?, they discovered a fracture in time and space, which they were able to use to transport anything to 85 million ...
0
votes
0answers
152 views
Name of a sci-fi short story about time travel and robots [closed]
This may be a long shot but here goes nothing. This short story about time travel is set in the future as a modern man is living among a small community of robots and is told to be robotic. The only ...
3
votes
1answer
294 views
Name of a sci-fi short story about time travel
This maybe a long shot but here goes nothing.
This short story about time travel is set during the last ice age as a modern man is living among a small community of early humans and is told to kill ...
7
votes
1answer
154 views
A 1950/60s story about time-traveling robots - please help identify
OK, I'm going to combine my hate of time-traveling robot questions with my distaste for story identification questions, and try to leverage all'y'all's wisdom to help me remember a story about time ...
5
votes
1answer
72 views
How did old Biff operate Time Machine?
In Back to the Future 2, old Biff stole the time machine in 2015 and went back in time to give an Almanac to young Biff. This journey was successful.
Time Machine wasn't a common thing found on every ...
6
votes
1answer
94 views
Story Identification: composer brought from the past to the future
Please help with identifying the following short story.
The story plot goes as follows: scientists discover a way to transfer sick people who are on their deathbed to the future and cure them of ...
11
votes
7answers
599 views
Why Couldn't a Time Turner Have been Used to Stop Voldemort?
With the use of a time turner, that opens a whole "Pandora's Box" of possibilities. While the use of one can be problematical, when the Ministry of Magic found out how dangerous Voldemort was, why ...
6
votes
2answers
130 views
What Were Time Turners Used For?
While time turners were guarded by the Ministry of Magic, it was still possible for a young student at Hogwarts to get permission to use one, indicating that while they may be secret, they aren't so ...
16
votes
2answers
251 views
Attempting to identify various time travel devices in a comic book image
In a Star Trek and DC Comics crossover comic that came out today, there is this image featuring various time travel and dimensional travel devices from tons of different movies/tv shows/etc. My ...
16
votes
2answers
373 views
Why not send back hundreds of Terminators?
Since the first Terminator failed, Skynet sent back increasingly sophisticated Terminators.
Another strategy would have been to send back multiple Terminators. Why was that not attempted? Was there a ...
9
votes
2answers
220 views
Why couldn't the T800s bring back advanced weaponry?
I seem to recall reading that no advanced weaponry could be bought here from the future because it wasn't organic, yet Arnie came back fine, advanced weaponry wrapped in organic skin.
Why didn't they ...
8
votes
2answers
229 views
Movie in which water is imported from past
About 10 years ago, I watched a Sci-Fi movie or telefilm on TV. It featured future of Earth when water would be a historical thing of past. They developed a time portal to travel in past i.e. current ...
10
votes
4answers
427 views
Why was the new timeline in Star Trek considered acceptable?
In the 2009 Star Trek movie, why was the new timeline considered acceptable?
In episodes of TOS and the movies, the crew would always go to great lengths not to alter the timeline and to restore any ...
6
votes
0answers
151 views
Novels about a time traveller who fixes a major problem, then investigates the Kennedy assassination
A long time ago (late 70s/ early 80s), I had a 2 book series about a man who came from the distant future to a pivotal point in the past (around the 70s) to 'fix' something that went wrong. He ended ...
7
votes
2answers
154 views
Is the Doctor's inability to backtrack along his own timeline consistent?
In the new Doctor Who series, we are frequently reminded that the Doctor "becomes a part of the events" as soon as he enters a time period, and is unable to (or should not) backtrack to fix his ...
1
vote
2answers
174 views
How could our heroes & old Biff switch timeline while keeping Almanac with young Biff?
In Back to the Future 2, old Biff stole the time machine in 2015 and went back in time to give an Almanac to young Biff. At the point of giving the Almanac to young Biff in 1955, he altered the future ...
5
votes
1answer
336 views
Is Time travel in “Star Trek: Enterprise” totally illogical?
Normally Star Trek seems to based on some sort of logic, but the time travel in "Star Trek: Enterprise" seems to have no logic at all, or am I just missing it?
Example: If they go back in time to ...
2
votes
2answers
87 views
In ST:Voy, 3:21 “Before and After,” why would Kes go back in time in spurts?
I just watched the Star Trek: Voyager episode "Before and After" (Episode 21, Season 3), wherein Kes keeps jumping backwards in time because of some chroniton particles. Is there any reason why she ...
6
votes
1answer
103 views
Story of an ex-dictator time-traveling into the past who's hunted down b/c he's radioactive
Can anyone find this story for me? It's one of those early sci-fi short stories. A dictator is violently deposed but escapes by jumping into a time machine. He travels to the past (somewhere around ...
7
votes
3answers
227 views
Were Time Turners Omni-Directional?
It's been a while since I read the books, so forgive me if this was explicitly stated in bold text with rainbow accents, but:
Were the time turners in Harry Potter able to move a user forward in ...
10
votes
1answer
259 views
Short Story with Time Travel separating the user from causality
I was reading a lot of Asimov, Clarke, Brown and Heinlein at the time, so I wouldn't be surprised to find it's one of them but I haven't been able to find it.
The story involves the main character (I ...
4
votes
1answer
201 views
Is there any time travel in the Star Wars expanded universe, or anywhere in the Star Wars canon?
Traveling faster than light would enable sending at least information back in time, violate causality, etc., but I don't remember reading or seeing anything related to it in the Star Wars universe. ...
4
votes
1answer
139 views
When was the picture of Amy and her baby taken?
In the Season 6 two-part opener of Doctor Who, Amy Pond stumbles upon a picture of herself smiling and holding a baby. This was in an orphanage in 1969 America. This presumably was taken later on in ...
6
votes
1answer
178 views
why the worry of temporal psychosis on Seven of Nine?
In the Voyager episode Relativity,
Seven of Nine is recruited from the past to help catch Captain Braxton, who is planting a temporal bomb to destroy Voyager.
But there's a catch: After 3 jumps, (to ...
5
votes
1answer
199 views
Who was leaping Sam Beckett in Time? Was it “God”…?
I was a huge fan of Quantum Leap. I'm sure you were too. But was it ever established who or what was leaping Sam around in time? I saw the last episode and remember him talking to a fat man at the ...
7
votes
4answers
358 views
Time Travel Rule - No Conflicting Memories?
I've noticed that over time there have been different rules for time travel. For example, originally the grandfather paradox was dealt with by the grandson either disappearing from the timeline or ...
28
votes
6answers
651 views
Why was Marty present in his jump to 2015 in Back to the Future 2?
I was doing some thinking about the paradoxes that arise during Back to the Future 2 when Marty, Doc and Jennifer travel to 2015 to see their future selves and help Marty's kid.
It was shown that ...
9
votes
4answers
329 views
Has anyone on Star Trek traveled into the future without a future intermediary?
I'm working from a hypothesis for Star Trek time-travel - one can travel into the past (and influence events there), but one cannot travel into the future. The asterisk to that rule is that if someone ...
14
votes
5answers
440 views
Could SG1 have used the Time Jumper to steal as many ZPMs as they wanted?
In the events of Moebius, SG1 travels back in time to steal a ZPM from Ra in ancient Egypt.
It went something like this:
SG1 resolves to steal the ZPM. They travel 3000 years back in time.
They ...
4
votes
0answers
49 views
in Samuel Delany's Empire Star, is there an explanation for Ni Ty Lee's omniscience?
in Empire Star, the poet Ni Ty Lee has experienced everything that everyone else in the galaxy has experienced. Because of the time traveling aspect of the story, and the way that many characters turn ...
11
votes
1answer
253 views
Was Hiro replacing himself when he time traveled?
In Season 4, episode Acceptance. Hiro repeatedly tries to save a jumper who is on top of his building at work. he keeps coming back to the starting point (getting the call) and then going upstairs to ...
8
votes
1answer
207 views
Movie about some cowboys who travel into the future (to our time)
I watch this film several times when I was a kid but now I can only remember a few details.
I know it was about some cowboys who travel into the future. I think it happens because the thunder hits ...
9
votes
2answers
410 views
Why do time-travel stories often have the characters “returning” to the future?
In Bill and Ted's Excellent Adventure, the duo travel all through time. After they accidentally travel to 1,000,000 BC, they repair their booth and attempt to return to their "present" but arrive "the ...
32
votes
3answers
1k views
How much older was Hermione after her third year at Hogwarts?
In her third year at Hogwarts, Hermione is given a time-turner so she can take more classes. Several of her classes are concurrent to each other, so she attends one class (for 1-2 hours) goes back in ...
11
votes
1answer
201 views
Story ID: Crystal Radio Talks to WWII From the Future
I'm pretty sure this was a visual story, on TV, but I could have read it and just imagined strong images to go with it. If I saw it on TV, it'd have been an anthology show, but I've searched and I'm ...
