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0 votes
0 answers
22 views

What could cause a sudden and drastic shift in the position of the Earth's tectonic plates?

5 votes
4 answers
261 views

Would a species with 3 sexes be more adept at warfare and hard labor compared to humans?

-1 votes
1 answer
20 views

If you had to populate a planet with flora and fauna, what would you bring?

0 votes
1 answer
50 views

What would happen if there were nine lunar cycles in a year?

3 votes
3 answers
155 views

Can Victorian engineers build spacecraft with an Epstein drive?

2 votes
10 answers
1k views

How can dragons breathe in space?

2 votes
2 answers
246 views

Viability of a medieval city without crops

-1 votes
0 answers
34 views

Would bloodsucking syringiform creatures need an anticoagulant to feed?

9 votes
4 answers
734 views
+100

The Lost Continents of Atlantis and Mu reappear: Disruption to Transport

1 vote
5 answers
153 views

Would a 'premature detonating' forcefield-type device be effective against shaped charge warheads?

14 votes
15 answers
4k views

How can I kill off 75-90% of humanity by a non-biological weapon, but leave structures standing?

3 votes
3 answers
299 views

Medieval city trading hands frequently over 200 years

3 votes
5 answers
1k views

Why would these two populations be genetically compatible?

2 votes
1 answer
84 views

How to calculate the tides for lake?

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