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8 votes
1 answer
178 views

How much would raptor-like talons on the hands affect tool use?

5 votes
6 answers
156 views

Can an amphibian grow fur?

2 votes
2 answers
91 views

How would geometric leaves and flower petals evolve?

11 votes
6 answers
3k views

Flying or swimming in supercritical CO2?

11 votes
6 answers
2k views

What species would make good flying livestock?

0 votes
0 answers
40 views

How do I find the correct planetary spacing for my red dwarf system?

7 votes
5 answers
2k views

Negative pressure projectile propellants (Alternatives to gunpowder)

35 votes
2 answers
17k views

What would skies look like on Worlds inside Nebulae?

6 votes
5 answers
2k views

Is it possible to melt icebergs for water at below the cost of desalination with 1960s/1970s technology?

6 votes
5 answers
2k views

Evolution of predatory elves

5 votes
11 answers
5k views

Fully electric flamethrower

8 votes
8 answers
4k views

If the Earth stopped spinning, what's the ideal point for it to stop to ensure the most people survive?

21 votes
7 answers
4k views

Could you actually do orbital deployment?

5 votes
2 answers
151 views

How would be a Lunisolar Calendar with 2 Moons?

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