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Top Questions

2 votes
3 answers
195 views

Prince Rupert' Drop Armor: How Expensive?

0 votes
1 answer
45 views

What color would the sky be in a multi-star system?

13 votes
23 answers
5k views

What goods yield the best profit for time-travel arbitrage?

9 votes
1 answer
470 views

Chemical Coin Flipping as Divination

7 votes
15 answers
2k views

What kind of pressures would make a culture force its members to always wear power armour

4 votes
3 answers
192 views

Is it possible for plant life to evolve (and adapt) on a low CO2 planet?

7 votes
10 answers
3k views

How could double damage be explained in-universe? [closed]

8 votes
1 answer
607 views

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

1 vote
3 answers
125 views

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

8 votes
16 answers
4k views

How could warfare be kept using pike and shot like tactics for 700 years?

6 votes
5 answers
2k views

Can I cause a star to go supernova by altering the four fundamental forces?

6 votes
3 answers
1k views

Would human-shaped sperm cells work?

40 votes
14 answers
8k views

Could a Black Market exist in a cashless society (digital currency)?

4 votes
6 answers
2k views

Natural mechanism behind burning oceans

2 votes
5 answers
3k views

Solution for a modern nation that mustn't see themselves or their own reflection

-1 votes
0 answers
65 views

Reasons/excuses to evolve and retain handlike manipulatory appendages [closed]

3 votes
2 answers
149 views

Could a wingsuit using fans be made with our current technology?

-1 votes
0 answers
52 views

What would sunsets look like around different star types? [migrated]

15 votes
13 answers
4k views

What scientifically plausible apocalypse scenario, if any, meets my criteria?

1 vote
2 answers
330 views

how fast can pain-killer and other drugs act in theory given human anatomy and otherwordly chemistry? [closed]

4 votes
8 answers
410 views

What evolutionary pressures would lead to massive differences in intelligence between the sexes?

1 vote
1 answer
97 views

How would I calculate the damage someone suffered from various strikes? [closed]

7 votes
4 answers
2k views

How could breastfeeding/suckling work for a beaked animal?

7 votes
6 answers
1k views

Can my necromancer have this bridge built with those constraints?

1 vote
2 answers
119 views

How would a magic system allowing arbitrary organ transplants work?

13 votes
15 answers
5k views

Why bother with planetary battlefields?

0 votes
1 answer
78 views

Artificial Satellites Orbit Around a Cube with Uniform Surface Gravity

0 votes
4 answers
308 views

Are buildings out of salt feasible? [closed]

3 votes
2 answers
136 views

What factors can I use determine if my runaway greenhouse planet will have a thick water vapour atmosphere?

11 votes
8 answers
3k views

Mechanism behind a pink human skeleton

1 vote
3 answers
397 views

How to Construct a Stellar Instar

2 votes
2 answers
108 views

Can mammal hypothetically evolve their own version of unidirectional breathing?

5 votes
8 answers
3k views

Why are metal ores dredged from coastal lagoons rather than being extracted directly from the mother lode?

0 votes
5 answers
286 views

How do I explain why my planet has only one continent? [closed]

14 votes
5 answers
4k views

Is it possible with modern-day technology to expand an already built bunker further below without the risk of collapsing the entire bunker?

2 votes
3 answers
123 views

What would be the best material to make gauntlets out of? [closed]

-2 votes
0 answers
68 views

How can a respiratory/vocalization system support both ingressive and egressive speech?

6 votes
10 answers
883 views

Ideas for an alternative to nuclear weapons as a deterrent? [duplicate]

5 votes
6 answers
2k views

The use of Bio-weapons as a deterrent?

20 votes
17 answers
7k views

What is the safest way to camp in a zombie apocalypse?

5 votes
4 answers
323 views

How could a feudal empire with a hive-minded species use this to maximize its power?

16 votes
9 answers
2k views

Would this telescope be capable to detect Middle Ages Civilization?

10 votes
10 answers
3k views

Everything has a tiny nuclear reactor in it. How much of a concern are illegal nuclear bombs?

3 votes
3 answers
183 views

Point defense weapons on bio-mechanical spacecraft that part of von Neumann machine horde

1 vote
2 answers
140 views

Advantages of centaurs in space [closed]

4 votes
6 answers
2k views

Is a desert planet with a small habitable area possible?

-2 votes
2 answers
82 views

Leftover fallen world technologies [closed]


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