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James K's user avatar
James K's user avatar
James K's user avatar
James K
  • Member for 8 years, 9 months
  • Last seen this week
54 votes
Accepted

What is the steepest gradient that a canal can be traversable without locks?

52 votes

Tank-Fighting Alien

50 votes
Accepted

In the year 2999, there are pills instead of food. What do commercials look like?

48 votes

Which major solar system body could most realistically be artificial?

44 votes

Can spacecraft defend against antimatter weapons? How?

35 votes
Accepted

Recognizable natural numbers for alien message?

35 votes
Accepted

Can Deserts and Plainslands be geographically close?

32 votes

Is it biologically possible for one species to need another species to reproduce?

22 votes

How long could an operational Virginia-class sub survive in the Jurassic sea?

19 votes

Hypothetically, can early humans have an alliance with giant ants? Maybe even assist humans in the agricultural revolution?

19 votes
Accepted

How could humanoids master forge fire without using vegetal materials?

17 votes

Definite pitch designs only, what musical instrument and class of musical instruments would be easiest to design if the world reset?

16 votes
Accepted

What mammal most abhors physical violence?

16 votes
Accepted

Would a planet be inhabitable after being impaled?

16 votes

Microorganisms that excrete primarily sugar?

15 votes

In a medieval setting, how far apart should towns be?

14 votes

Ensuring genetic diversity in a small colony, by using artificial insemination?

14 votes

Gravity Propulsion

14 votes

How would the world adapt to a crazy grounded titan?

13 votes

Is multigenerational memory feasible

13 votes

Could life have evolved as described by Lamarck's theory of evolution, instead of Darwin's?

13 votes

How would a human be affected if plant DNA was injected into their system?

12 votes

How close the the star should i place my lava planet?

11 votes

Reproductive capabilites of genetically altered humans

11 votes

Could a moon made of fissile uranium produce enough heat to replace the sun?

11 votes

What would happen if 10^37 J of energy was dumped into the sun via antimatter detonation?

11 votes

Leg powered propeller for boat in Punic war time

11 votes
Accepted

Potential uses for a neutrino-based weapon

11 votes

What would cause male and female insectoid aliens to become highly dimorphic and live in different environments?

11 votes
Accepted

Planet of the Aves: Quadrabirds

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