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Humphrey's user avatar
Humphrey's user avatar
Humphrey
  • Member for 2 years, 9 months
  • Last seen more than 2 years ago
30 votes
22 answers
7k views

How do you make your worldbuilding less utopian?

11 votes
10 answers
2k views

Could a non-nuclear sub power itself by ocean energy?

4 votes
3 answers
1k views

How do submariners contribute to the surface-world?

6 votes
7 answers
531 views

How can you breathe underwater?

5 votes
4 answers
328 views

Are low-energy submarines possible?

3 votes
3 answers
279 views

Are vactrains a good choice for cargo?

3 votes
3 answers
246 views

How would a cyberpunk superhero do interrogations?

1 vote
1 answer
63 views

How far could material cableways stretch if carbon nanotubes were used?