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user4574
  • Member for 8 years, 4 months
  • Last seen more than a week ago
-1 votes

How easily could a pre-scientific people purify a substance and hence grow a pure crystal?

2 votes

Hiding a star cluster

5 votes

How to prevent theft in a society where everyone has hyperspace storage?

3 votes

How could I justify switching phone numbers from decimal to hexadecimal?

0 votes

Are interstellar penal colonies a feasible idea?

48 votes

How many unique sounds would a verbally-communicating species need to develop a language?

1 vote

What is the least far-fetched way to defend against nuclear submarines?

1 vote

Following normal physics, can a world be unable to make electronics due to a lack of resources/materials?

0 votes

Generating gravity

1 vote

If a creature's best food source was 4,000 feet above it, and only rarely fell from that height, how would it evolve to eat that food?

2 votes

Why can my power armor's magic lightweight fuel cells not be used for other things?

4 votes

What kind of creature would be able to provide nutrients to my floating plant mat?

9 votes
Accepted

What challenges must oceanic plant life overcome in order to create a mat on top of the ocean?

0 votes

No one wants to reproduce because it's disgusting, how does the species avoid extinction?

1 vote

Weighted Clothes In A Low Gravity Environment

3 votes

Can a NASER be used as a weapon?

2 votes

Realistic way a character that born with 999/1000 luck stats die?

0 votes

What kind of war would lead to Ultra-Heavy tanks being useful?

3 votes

Could an alien creature with an exoskeleton naturally including lead levels roughly twice as high as iron in human bones get natural RAD protection?

1 vote

How to limit the usefulness of an anti-gravity mineral to airship construction in steampunk?

1 vote

What happens during simultaneous hits on a tank

3 votes

Delivery of minerals to Earth from the asteroids by artificial meteorite or solid metal glider

1 vote

What would an immortal-run American bank have to do to secretly maintain bank accounts for immortal customers?

4 votes

Why don't adventurers (and monsters) suffocate in lower levels of dungeons?

6 votes

How can humanity survive the Shadow?

6 votes

Safely preserving a manuscript for 700 years

2 votes

Safely preserving a manuscript for 700 years

7 votes

Is an instrument that increases in loudness the farther away you get from it scientifically plausible?

0 votes

Why can't modern fighter aircraft shoot down second world war bombers?

4 votes

What person/group can be trusted to secure and freely distribute extensive amount of future knowledge in the 1990s?