User Gangnus

92 votes

Accepted

How would primitive peoples detect radiation?

answered Jun 26, 2018 at 17:50

18 votes

Psychedelic Death Birds

answered Mar 5, 2018 at 12:14

8 votes

19th Century army standing against a Modern Army

answered Jun 23, 2017 at 8:17

6 votes

Alternative source of fuel instead of wood

answered Sep 21, 2018 at 21:34

5 votes

How would an entity automatically know when someone is directly observing it?

answered Jan 28, 2022 at 0:28

4 votes

What is the nature of the interstellar message to be accepted by a civilization comparable to humanity at the end of the nineteenth century (19th)?

answered Oct 9, 2020 at 11:28

4 votes

How to kill trees?

answered Jun 5, 2018 at 6:32

3 votes

Minimum level of technology to have a modern tax system?

answered Apr 5, 2019 at 20:34

3 votes

Could a Super-Light Gas Improve Heavy Armor?

answered Jul 25, 2017 at 21:46

3 votes

Accepted

Would ultrasonic nasal communication work? (De facto telepathy.)

answered Jun 29, 2017 at 22:20

2 votes

How deep can I make my underwater facility?

answered Mar 5, 2018 at 12:27

2 votes

In a world with very advanced computer science, how would people be taught sufficient programming skills?

answered Nov 15, 2017 at 13:42

2 votes

How to calculate the thickness of the ice layer of a frozen ocean planet/moon?

answered Mar 25, 2019 at 22:56

2 votes

Could public-key cryptography, such as RSA, be useful and secure in the late Middle Ages in the absence of computers?

answered Jun 5, 2018 at 20:51

2 votes

Naturally occurring, stable form of antimatter

answered Jan 28, 2022 at 1:00

2 votes

How could earths life adapt on a new planet?

answered Jan 28, 2022 at 1:20

1 vote

Can giant planets in the habitable zone have rocky moons?

answered Dec 3, 2018 at 22:39

1 vote

Physical characteristics of 3-inch men

answered Sep 21, 2018 at 22:10

1 vote

How can combining two ethereal substances that naturally repel amplify each others effects?

answered Apr 12, 2019 at 13:03

1 vote

No oceans but not deserts?

answered May 3, 2019 at 14:38

1 vote

How would the strong magnetic field of a white dwarf affect humans inhabiting a planet that orbits such a star?

answered Dec 8, 2019 at 1:13

1 vote

Why would two humanoid species be physically unable to touch each other?

answered Nov 26, 2017 at 13:35

1 vote

Would animals really mutate in the post-apocalypse?

answered Mar 5, 2018 at 12:32

1 vote

The role of a physical classroom environment in a cyberpunk, futuristic world

answered Nov 15, 2017 at 13:03

0 votes

Is there a scientifically valid explanation for a circle of islands?

answered Jun 29, 2017 at 22:09

0 votes

Cities of a civilization of sentients capable of natural flight?

answered Jun 29, 2017 at 23:36

0 votes

Are Megalodon as trained weapon animals enough to sink the passenger ships and warships of the Victorian era?

answered Jul 25, 2017 at 21:17

0 votes

What would an object crossing an event horizon look like to outside observers?

answered Jul 25, 2017 at 21:36

0 votes

Would a large delta allow my desert people to feed a continent?

answered Mar 22, 2018 at 12:56

0 votes

What aquatic creatures would survive a large-end mass extinction?

answered Mar 5, 2018 at 12:19

Stack Exchange Network

42 Answers

How would primitive peoples detect radiation?

Psychedelic Death Birds

19th Century army standing against a Modern Army

Alternative source of fuel instead of wood

How would an entity automatically know when someone is directly observing it?

What is the nature of the interstellar message to be accepted by a civilization comparable to humanity at the end of the nineteenth century (19th)?

How to kill trees?

Minimum level of technology to have a modern tax system?

Could a Super-Light Gas Improve Heavy Armor?

Would ultrasonic nasal communication work? (De facto telepathy.)

How deep can I make my underwater facility?

In a world with very advanced computer science, how would people be taught sufficient programming skills?

How to calculate the thickness of the ice layer of a frozen ocean planet/moon?

Could public-key cryptography, such as RSA, be useful and secure in the late Middle Ages in the absence of computers?

Naturally occurring, stable form of antimatter

How could earths life adapt on a new planet?

Can giant planets in the habitable zone have rocky moons?

Physical characteristics of 3-inch men

How can combining two ethereal substances that naturally repel amplify each others effects?

No oceans but not deserts?

How would the strong magnetic field of a white dwarf affect humans inhabiting a planet that orbits such a star?

Why would two humanoid species be physically unable to touch each other?

Would animals really mutate in the post-apocalypse?

The role of a physical classroom environment in a cyberpunk, futuristic world

Is there a scientifically valid explanation for a circle of islands?

Cities of a civilization of sentients capable of natural flight?

Are Megalodon as trained weapon animals enough to sink the passenger ships and warships of the Victorian era?

What would an object crossing an event horizon look like to outside observers?

Would a large delta allow my desert people to feed a continent?

What aquatic creatures would survive a large-end mass extinction?