User Starfish Prime

162 votes

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An Earth-like planet is found in another solar system. What are the top priorities after landing in order to create a self-sustaining colony?

answered Jan 14, 2020 at 12:38

87 votes

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Electricity free spaceship

answered Jun 5, 2019 at 21:59

83 votes

Building a road to escape Earth's gravity by making a pyramid on Antartica

answered May 31, 2019 at 10:17

79 votes

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Justifying the use of directed energy weapons

answered Aug 21, 2019 at 9:35

79 votes

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Why would space traders pick up and offload their goods from an orbiting platform rather than direct to the planet?

answered Jul 31, 2022 at 12:59

78 votes

What does the view outside my ship traveling at light speed look like?

answered May 23, 2019 at 20:40

68 votes

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How would armour (and combat) change if the fighter didn't need to actually wear it?

answered Aug 14, 2019 at 11:11

65 votes

Killing a star safely

answered Jul 21, 2019 at 18:34

58 votes

Why can humanoid robots designed solely for social purposes lift a 30 ton fire truck?

answered Jan 6, 2022 at 10:38

56 votes

Feasibility of H.G. Wells' Continuously-Exploding Atomic Bombs

answered Jan 12, 2020 at 14:39

55 votes

Best fighting style for a pacifist

answered Nov 22, 2019 at 21:44

54 votes

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How could a church maintain the illusion of an Eternal Flame for hundreds of years?

answered Apr 8, 2022 at 15:54

50 votes

How would sword design change if the aim was to cause as much immediate bleeding as possible?

answered Dec 18, 2019 at 17:08

50 votes

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Dodging a Deathbeam travelling at speed of light

answered Oct 30, 2019 at 12:31

47 votes

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Deflecting an incoming star, railgun style

answered Mar 4, 2021 at 16:17

44 votes

Barehanded vs direwolf

answered Sep 12, 2021 at 21:12

44 votes

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If it wasn't maintained for hundreds of years, would the Channel Tunnel collapse?

answered Jan 27, 2020 at 17:19

43 votes

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Starships without computers?

answered Aug 18, 2019 at 9:35

43 votes

I'm on the Titanic, what should I do to survive?

answered Oct 15, 2019 at 6:40

42 votes

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I want to build a weapon targeting Interstellar distances. How viable are railguns?

answered Mar 18, 2021 at 18:40

42 votes

Best spot within a human to place redundant heart

answered Dec 2, 2019 at 20:20

40 votes

How are militaries supposed to communicate if they completely shut down wireless communication because the other side can intercept all of them?

answered Jan 4 at 15:57

40 votes

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How can we enable a centaur to climb between different floors?

answered Jan 12, 2022 at 10:15

39 votes

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The Moon turns into a black hole of the same mass -- what happens next?

answered Nov 8, 2022 at 20:07

39 votes

How do I explain the long life spans of Elves?

answered Feb 4, 2020 at 22:21

38 votes

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Is there an evolutionary advantage to having two heads?

answered May 26, 2019 at 20:45

37 votes

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How would a planet bound colony clean up an artificially triggered Kessler Syndrome?

answered Mar 1, 2021 at 18:05

37 votes

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How could shapeshifters tell each other apart within their own societies?

answered Jan 2, 2020 at 13:24

37 votes

How much would we learn from observing an FTL starship fly by?

answered Nov 26, 2019 at 11:15

36 votes

How would you slow down a large object traveling through space?

answered Mar 29, 2021 at 19:17

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878 Answers

An Earth-like planet is found in another solar system. What are the top priorities after landing in order to create a self-sustaining colony?

Electricity free spaceship

Building a road to escape Earth's gravity by making a pyramid on Antartica

Justifying the use of directed energy weapons

Why would space traders pick up and offload their goods from an orbiting platform rather than direct to the planet?

What does the view outside my ship traveling at light speed look like?

How would armour (and combat) change if the fighter didn't need to actually wear it?

Killing a star safely

Why can humanoid robots designed solely for social purposes lift a 30 ton fire truck?

Feasibility of H.G. Wells' Continuously-Exploding Atomic Bombs

Best fighting style for a pacifist

How could a church maintain the illusion of an Eternal Flame for hundreds of years?

How would sword design change if the aim was to cause as much immediate bleeding as possible?

Dodging a Deathbeam travelling at speed of light

Deflecting an incoming star, railgun style

Barehanded vs direwolf

If it wasn't maintained for hundreds of years, would the Channel Tunnel collapse?

Starships without computers?

I'm on the Titanic, what should I do to survive?

I want to build a weapon targeting Interstellar distances. How viable are railguns?

Best spot within a human to place redundant heart

How are militaries supposed to communicate if they completely shut down wireless communication because the other side can intercept all of them?

How can we enable a centaur to climb between different floors?

The Moon turns into a black hole of the same mass -- what happens next?

How do I explain the long life spans of Elves?

Is there an evolutionary advantage to having two heads?

How would a planet bound colony clean up an artificially triggered Kessler Syndrome?

How could shapeshifters tell each other apart within their own societies?

How much would we learn from observing an FTL starship fly by?

How would you slow down a large object traveling through space?