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16 votes
6 answers
930 views

What is the longest bridge that a Bronze Age society could put together?

7 votes
6 answers
709 views

Where do forge-worms live outside of forges?

2 votes
3 answers
85 views

Survival Prepping, for Time Travel

-1 votes
2 answers
231 views

How could a human biologically climb vertical walls?

3 votes
1 answer
45 views

Where should my tectonic plates be?

2 votes
3 answers
112 views

Would an asexually reproducing Humanoid species have any form of romance or sexual pleasure?

3 votes
4 answers
468 views

How to measure land area for a map?

3 votes
2 answers
402 views

Physics feasibility of a light-gas driven rifle cartridge? Diagram example included

3 votes
2 answers
69 views

What is the Sex determination system with males, females and multiple hermaphroditic sexes?

5 votes
4 answers
657 views

Would it be the end of modern civilisation if there wasn't any oil?

3 votes
2 answers
172 views

The Planet of the Ants: Giant Ant Physiology

15 votes
5 answers
3k views

Building a (solid) ring around the earth

6 votes
1 answer
198 views

On the tidal heating of a moon. What is the second Love number?

0 votes
1 answer
101 views

If modern computers evolved a different way, how different might their keyboards look?

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