Top network posts
- 35 Could a submarine built during the cold war maintain pressure underwater for 50 years?
- 35 Build an impregnable fortress in the middle ages with modern technology
- 25 Would low-grade levitation be of any use?
- 22 How would a century of disuse affect this structure?
- 18 How would a ship defend against a sea creature, and possibly win?
- 13 Time traveler has identified a unknown epidemic is likely spread by mosquitos. How much can he help combat it?
- 12 How can I explain tree-like creatures that are only active in the cold of night
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