User James Cook

75 votes

Most practical method for a secret demographic to get its news?

answered Jul 25, 2022 at 13:42

26 votes

How fast would the Moon (Luna) need to rotate so that anyone living in Lunar underground habitats would experience Earth-like gravity?

answered Dec 22, 2021 at 21:43

11 votes

What are good heat-resistant materials for writing a self-immolating spellbook?

answered Dec 20, 2022 at 13:55

11 votes

What would be the next logical step after crossbows?

answered Feb 6, 2023 at 15:27

11 votes

Minimum housing standards for Single meal self-sufficiency

answered Jun 12, 2020 at 14:13

8 votes

Post-apocalyptic automotive fuel for a cold world?

answered Jul 11, 2023 at 13:57

7 votes

Could Elk or Reindeer be ridden by human or humanoids?

answered Dec 11, 2023 at 15:57

7 votes

What are the maximum and minimum day-night cycle lengths humans can adapt to?

answered Jun 21, 2022 at 18:24

7 votes

Cooling Question: How can I integrate a low tech freezing system into my world?

answered Jul 7, 2021 at 17:57

7 votes

Would the successful creation of nuclear powered bombers in the 1950s have had any meaningful impact on the Cold War?

answered Aug 24, 2021 at 14:39

6 votes

Explorers living off the sea

answered Jun 23, 2021 at 13:26

6 votes

Non-electric Laser

answered Sep 27, 2019 at 19:00

6 votes

Would a single solar system be able to come up with a main time system?

answered Mar 9, 2020 at 19:57

6 votes

Why aren’t there advanced computers in an advanced society?

answered Apr 23 at 20:37

6 votes

Would fixed-wing aircraft still exist if helicopters had been invented (and flown) before them?

answered Jul 26, 2023 at 20:56

5 votes

What professions would a medieval village with a population of 100 need?

answered Aug 19, 2019 at 17:54

5 votes

What would be needed to have melee in a near future setting alongside ranged weapons?

answered Jun 3, 2021 at 15:16

4 votes

Other than match and rope, is there any other way to fire what is essentially a musket/cannon?

answered May 31, 2022 at 13:45

4 votes

Biology Question Ovoviviparity in Mammals Mammal/Brid Hybrids

answered Aug 22, 2022 at 17:16

4 votes

A billion dead?

answered Mar 11, 2020 at 14:16

4 votes

What would naval warfare look like if Dreadnoughts never came to be?

answered Jul 24, 2023 at 19:05

3 votes

Reality Check - How possible is it for a single human to reach "Space Engineers" level of technological prowess?

answered Oct 14 at 18:25

3 votes

Detection systems and trigger mechanism in a pre-electronic world?

answered May 28, 2020 at 19:01

3 votes

Intercontinental radio broadcasting in a post-apocalyptic world

answered Mar 30, 2020 at 17:31

3 votes

Will be electronics production in zero or low gravity possible and how soon?

answered Feb 17, 2020 at 20:32

3 votes

5,000 years from now — The Best valuable for wealth & trade?

answered Jun 19, 2023 at 13:59

2 votes

"Hard" SF reaction to "Soft" SF Aliens

answered Jun 26, 2023 at 15:37

2 votes

Alt-history continuation of Dynasoar program

answered Jun 28, 2023 at 14:58

2 votes

Are AP slugs for shotguns possible?

answered Jun 8, 2021 at 14:18

2 votes

How scientifically created new language could be helpful to all of humans?

answered Feb 3, 2020 at 15:16

Stack Exchange Network

86 Answers

Most practical method for a secret demographic to get its news?

How fast would the Moon (Luna) need to rotate so that anyone living in Lunar underground habitats would experience Earth-like gravity?

What are good heat-resistant materials for writing a self-immolating spellbook?

What would be the next logical step after crossbows?

Minimum housing standards for Single meal self-sufficiency

Post-apocalyptic automotive fuel for a cold world?

Could Elk or Reindeer be ridden by human or humanoids?

What are the maximum and minimum day-night cycle lengths humans can adapt to?

Cooling Question: How can I integrate a low tech freezing system into my world?

Would the successful creation of nuclear powered bombers in the 1950s have had any meaningful impact on the Cold War?

Explorers living off the sea

Non-electric Laser

Would a single solar system be able to come up with a main time system?

Why aren’t there advanced computers in an advanced society?

Would fixed-wing aircraft still exist if helicopters had been invented (and flown) before them?

What professions would a medieval village with a population of 100 need?

What would be needed to have melee in a near future setting alongside ranged weapons?

Other than match and rope, is there any other way to fire what is essentially a musket/cannon?

Biology Question Ovoviviparity in Mammals Mammal/Brid Hybrids

A billion dead?

What would naval warfare look like if Dreadnoughts never came to be?

Reality Check - How possible is it for a single human to reach "Space Engineers" level of technological prowess?

Detection systems and trigger mechanism in a pre-electronic world?

Intercontinental radio broadcasting in a post-apocalyptic world

Will be electronics production in zero or low gravity possible and how soon?

5,000 years from now — The Best valuable for wealth & trade?

"Hard" SF reaction to "Soft" SF Aliens

Alt-history continuation of Dynasoar program

Are AP slugs for shotguns possible?

How scientifically created new language could be helpful to all of humans?