User bendl

63 votes

Accepted

What would be a credible way to design a watertight membrane that still allows large organisms to pass through?

answered Apr 3, 2018 at 18:00

31 votes

The Infinite Sea, how narrow can that be?

answered Jun 18, 2018 at 16:11

21 votes

Accepted

Can you protect a Space Elevator from Space Junk?

answered Dec 13, 2017 at 15:05

17 votes

How to build a trap to last the ages?

answered Apr 9, 2018 at 23:11

14 votes

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

answered Nov 15, 2017 at 14:24

12 votes

Accepted

Using the Casimir effect with a railgun to reduce mass, size and recoil?

answered Apr 25, 2018 at 18:40

12 votes

Accepted

What MATH could I use to conclude my World's Elf prime pregnancy years?

answered May 9, 2018 at 11:29

11 votes

Are there physiological traits common to all tool-building species?

answered Dec 29, 2017 at 14:40

11 votes

How can I create explosions without using oxygen?

answered Aug 21, 2017 at 13:27

10 votes

Placement of redundant containment systems?

answered Jan 2, 2018 at 23:13

10 votes

How to trigger explosive arrows?

answered Jun 11, 2018 at 14:50

8 votes

How could mankind of ancient times cause significant climate change?

answered Jan 3, 2018 at 15:22

8 votes

Accepted

A friend has an idea for a PA colony traveling to Proxima Centauri B but need help fleshing it out

answered Dec 28, 2017 at 17:54

7 votes

Average Speed when Caving

answered Apr 6, 2018 at 1:42

7 votes

The nation without villages

answered Jan 24, 2018 at 16:35

6 votes

How would one develop a transistor in a medieval setting

answered May 19, 2018 at 14:06

5 votes

Can lodestones be used to magnetize crude iron weapons?

answered Aug 14, 2019 at 15:24

5 votes

How could an inter-temporal banking system work?

answered Jun 5, 2018 at 18:07

5 votes

How would you design a dragon-like creature so it could sew?

answered Dec 27, 2017 at 17:33

5 votes

What is the best unit of measure for the time portion of a non-earth-bound light"year"?

answered Dec 28, 2017 at 14:22

4 votes

How would two generational ships traveling at point eight cee communicate with each other?

answered Dec 27, 2017 at 17:10

4 votes

What would physics be like in a wrap-around universe?

answered Jan 24, 2018 at 17:24

4 votes

Accepted

Thousand pound steel bow?

answered Jan 22, 2018 at 22:36

4 votes

Harvesting carbon free electricity from a field of plants

answered Jun 21, 2019 at 20:14

3 votes

Low-gravity Bronze Age fortifications

answered Jun 24, 2019 at 12:24

3 votes

Is this aircraft plausible?

answered Apr 30, 2018 at 20:39

3 votes

Can space debris be used as a heat sink for re-entry?

answered May 7, 2018 at 13:22

3 votes

What would happen to a planet after a quarter of it had been blown up?

answered Jun 14, 2018 at 18:28

3 votes

What Technological Regression Might a Spacefaring Civilization Experience?

answered May 25, 2018 at 11:32

3 votes

Mapping Stellar Empires?

answered Jun 2, 2018 at 22:48

Stack Exchange Network

56 Answers

What would be a credible way to design a watertight membrane that still allows large organisms to pass through?

The Infinite Sea, how narrow can that be?

Can you protect a Space Elevator from Space Junk?

How to build a trap to last the ages?

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

Using the Casimir effect with a railgun to reduce mass, size and recoil?

What MATH could I use to conclude my World's Elf prime pregnancy years?

Are there physiological traits common to all tool-building species?

How can I create explosions without using oxygen?

Placement of redundant containment systems?

How to trigger explosive arrows?

How could mankind of ancient times cause significant climate change?

A friend has an idea for a PA colony traveling to Proxima Centauri B but need help fleshing it out

Average Speed when Caving

The nation without villages

How would one develop a transistor in a medieval setting

Can lodestones be used to magnetize crude iron weapons?

How could an inter-temporal banking system work?

How would you design a dragon-like creature so it could sew?

What is the best unit of measure for the time portion of a non-earth-bound light"year"?

How would two generational ships traveling at point eight cee communicate with each other?

What would physics be like in a wrap-around universe?

Thousand pound steel bow?

Harvesting carbon free electricity from a field of plants

Low-gravity Bronze Age fortifications

Is this aircraft plausible?

Can space debris be used as a heat sink for re-entry?

What would happen to a planet after a quarter of it had been blown up?

What Technological Regression Might a Spacefaring Civilization Experience?

Mapping Stellar Empires?