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Q&A

Posts tagged time-travel

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Q&A Why buy tech from the future?

1 answer  ·  posted 1y ago by Green‭  ·  last activity 1y ago by Jordan‭

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Q&A Time reversal by the means of lightspeed

1 answer  ·  posted almost 2 years ago by El El‭  ·  last activity almost 2 years ago by El El‭

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Q&A Epidemic friendly time traveller

3 answers  ·  posted almost 2 years ago by pjp‭  ·  last activity almost 2 years ago by pjp‭

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Q&A In a world with time travel, would it be possible to be your own mother's mother?

8 answers  ·  posted almost 2 years ago by sebrockm‭  ·  last activity almost 2 years ago by sebrockm‭

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Q&A The scientific description of time-asymmetric retro-causality?

6 answers  ·  posted 2y ago by Vogon Poet‭  ·  last activity almost 2 years ago by Vogon Poet‭

Question time-travel
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Q&A If we brought ancient germs to the present

3 answers  ·  posted over 2 years ago by yo76yo‭  ·  last activity over 2 years ago by yo76yo‭

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Q&A Keeping supplies for 1000 years

13 answers  ·  posted over 5 years ago by Michael‭  ·  last activity over 2 years ago by Michael‭

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Q&A The North Star in the ancient world sky

2 answers  ·  posted over 2 years ago by Cyn‭  ·  last activity over 2 years ago by Cyn‭

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Q&A Intragalactic velocity past the central black hole

2 answers  ·  posted over 2 years ago by Javor‭  ·  last activity over 2 years ago by Javor‭

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Q&A Solar cells in the Renaissance

3 answers  ·  posted over 2 years ago by yanis‭  ·  last activity over 2 years ago by yanis‭

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Q&A Preventing the Big Bang

3 answers  ·  posted almost 3 years ago by chasly from UK‭  ·  last activity almost 3 years ago by chasly from UK‭

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Q&A Time travel from stationary position?

6 answers  ·  posted almost 3 years ago by Travis‭  ·  last activity almost 3 years ago by Travis‭

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Q&A If I travel back in time and do nothing, just being an observer, would that change the past?

9 answers  ·  posted almost 3 years ago by user61906‭  ·  last activity almost 3 years ago by user61906‭

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Q&A Could the equator of a world be a closed-time like loop?

1 answer  ·  posted almost 3 years ago by PyRulez‭  ·  last activity almost 3 years ago by PyRulez‭

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Q&A Victorian astronomer detecting artificial satellites

4 answers  ·  posted over 3 years ago by Sasha‭  ·  last activity over 3 years ago by Sasha‭

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Q&A How could we time travel backwards without killing everyone with germs from the future?

10 answers  ·  posted over 5 years ago by wcarhart‭  ·  last activity over 3 years ago by wcarhart‭

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Q&A Modern technology during WW2, can it be powered safely?

5 answers  ·  posted 6y ago by dsollen‭  ·  last activity over 3 years ago by dsollen‭

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Q&A How can I modern time traveler determine solstice and equinox?

3 answers  ·  posted over 3 years ago by Mindwin‭  ·  last activity over 3 years ago by Mindwin‭

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Q&A Extrapolating from the GPS network for time travel

2 answers  ·  posted over 3 years ago by Tim B II‭  ·  last activity over 3 years ago by Tim B II‭

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Q&A A charred human arm appears from thin air; what can we learn from it?

4 answers  ·  posted over 5 years ago by Liesmith‭  ·  last activity over 3 years ago by Liesmith‭

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Q&A The Transferable Skills of Sociopathy

3 answers  ·  posted 4y ago by Green‭  ·  last activity over 3 years ago by Green‭

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Q&A As a time traveler, how would I see quantum randomness change history?

5 answers  ·  posted over 5 years ago by ognockocaten‭  ·  last activity over 3 years ago by ognockocaten‭

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Q&A The Paradox Men - Cosmology

5 answers  ·  posted over 3 years ago by Atcrank‭  ·  last activity over 3 years ago by Atcrank‭

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Q&A Stopping time, by speeding it up inside a bubble

8 answers  ·  posted over 5 years ago by Drgabble‭  ·  last activity over 3 years ago by Drgabble‭

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Q&A Avoiding preventing your own birth in a time travel paradox?

17 answers  ·  posted over 5 years ago by Space Ostrich‭  ·  last activity over 3 years ago by Space Ostrich‭

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Q&A Faster time for humans compared to (more advanced) intergalactic civilizations

3 answers  ·  posted over 4 years ago by Davide42‭  ·  last activity over 4 years ago by Davide42‭

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Q&A Is there any feasible real sounding science sci-fi explanation for a chronovisor?

6 answers  ·  posted over 4 years ago by Max‭  ·  last activity over 4 years ago by Max‭

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Q&A Time travel and random events

4 answers  ·  posted over 4 years ago by danl‭  ·  last activity over 4 years ago by danl‭

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Q&A What happens at the interface between two universes with opposite thermodynamic arrows of time?

5 answers  ·  posted almost 6 years ago by JDługosz‭  ·  last activity over 4 years ago by JDługosz‭

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Q&A How to realistically build a time machine?

5 answers  ·  posted over 4 years ago by JDługosz‭  ·  last activity over 4 years ago by JDługosz‭

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Q&A Will This Violate Causality?

3 answers  ·  posted almost 5 years ago by Douglas‭  ·  last activity almost 5 years ago by Douglas‭

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Q&A How to send a message to the past using a precognizant rabbit?

3 answers  ·  posted almost 5 years ago by possiblySerious‭  ·  last activity almost 5 years ago by possiblySerious‭

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Q&A How can the more lucky friend of John Doe past-proof his travel to Versailles?

3 answers  ·  posted almost 5 years ago by WoJ‭  ·  last activity almost 5 years ago by WoJ‭

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