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百度 为了应对春季的干旱，人工增雨作业已经做好随时待命的准备，只要天气条件具备就可以进行增雨作业，以对抗春季的旱情。
A concept frequently used as a plot device involving the manipulation of events by characters traveling through time.
84 questions
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Why doesn't Marty and Jennifer's time jump to 2015 affect their future in Back to the Future Part II?
In Back to the Future Part II, Marty, Jennifer, and Doc travel directly from 1985 to 2015, essentially "jumping over" the intervening years. This creates a paradox: if they weren't present ...
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2
answers
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How does Ash figure the year is 1300 A.D.?
In the legendary comedy-horror Army of Darkness (1992), Bruce Campbell's narration opens the film thus:
My name is Ash, and I am a slave. As close as I can figure it, the year is 1300 A.D., and I am ...
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2
votes
1
answer
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Did Craig Donovan ever time travel with the sphere?
Back in the day (1998-2001), there was airing a sci-fi classic called Seven Days of which I watched a few episodes where an ex-CIA agent Frank Parker is recruited by a top-secret government ...
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0
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Why does Jess continue to go on voyages with her friends?
From Jess's previous experience, she already knows that she is stuck in a time loop.
In the film Triangle (2009), the last scene shows that Jess is at the yacht dock, and it seems like she is going on ...
user81571
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8
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Loop of Marties in "Back to the Future 1"
First of all, this is just a question based on my curiosity. It can seem pointless and illogical because of some missing piece of information, but I am asking it anyway based on my understanding of ...
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0
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Is there a paradox lurking in Interstellar? [duplicate]
When Cooper (the daughter) worked out the equations which allegedly assured the survival of the human race on Earth, she threw her notes from the balcony in the space center: "EUREKA!"
Now, ...
1
vote
1
answer
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Who threw the suitcase to the other?
In Tenet we can clearly see that:
From the Protagonist perspective
I take the inverted suitcase
I throw it to inverted sator.
The inverted Sator catches the suitcase
From the perspective of inverted ...
- 111
7
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2
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Shot mechanic in Tenet
In Tenet, when someone got shot by an inverted bullet, shouldn't the person be hurt before getting shot and recover immediately after the inverted bullet shoots him?
If not, then why was the wall ...
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2
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0
answers
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How did the Justice League return back to the current time after World War 2?
In Justice League (the animated series which ran from 2001 to 2004) season 1 finale the "The Savage Time", Justice League members use a time machine built by Vandal Savage to return to World ...
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1
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2
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Deja Vu - Ending Explanation
How was Agent Carlin still alive in the end of the movie when his (1 or 2 days) older version who came back in time to prevent the murder and the blast died while doing it?
Also, he wouldn't have ...
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1
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MCU connected to Doctor Who?
In the post-credit scene of Ant-Man and The Wasp, Janet van Dyne tells Scott Lang:
"Don't get sucked into a time vortex. We won't be able to save you."
Sometimes filmmakers will put in ...
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8
votes
2
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Back to the Future Part 2: What was the point of going to the future?
In Back to the Future Part 2, Doc practically forces Marty to come back with him to 2015 to correct something regarding his kids. Basically Marty Jr. needs to say "no" to Griff so that he doesn't get ...
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20
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1
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How did Biff return to 2015 from 1955 without a lightning strike?
What I don't get about Back to the Future Part II is how was Old Biff able to come back to 2015 from 1955 after he gave his 1955 self the Sports Almanac.
If you recall from Part I, the chance ...
- 389
16
votes
2
answers
10k
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How did Ulrich end up in 1953?
In season 1 of Dark, Ulrich, in search of his son goes through the portal in the cave and ends up in 1953. Throughout the show, they keep saying that one can either go 33 years in the future or 33 ...
- 363
23
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2
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What's the role of the Receiver/Transmitter in Avengers Endgame?
In Endgame we are shown that the Time Travelers leave from a transmitting / receiving unit. But this seems optional.
When Tony and Steve are in 2012, they leave from there to get to 1970 - no ...
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