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Alexander
  • Member for 5 years, 5 months
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129 votes
Accepted

How could a planet have a sky without stars at night?

116 votes

If a large space ship crashes on a planet, what could kill passengers without obliterating the ship?

111 votes

Why might the dystopian government make its policemen patrol in fours?

87 votes

How can you weaponize a thermos?

84 votes

How can a Dragon keep humanity in check?

77 votes

How would primitive peoples detect radiation?

66 votes
Accepted

How do I have a Dictatorship keep its dictator out of international headlines?

66 votes

Dungeons for Real: 1. The Bottomless Pit

60 votes
Accepted

If 120 experts in 12 different fields were sent back 10,000 years, could they recreate the 21st century in 100 years?

53 votes

Tactics and strategy an army can use to counter Human Wave attacks?

53 votes

What modern-day object could a magic wand be disguised as?

52 votes

How would an astronaut conclude he's on Earth, but 600 million years in the future?

52 votes

How to prevent criminal gangs from making/buying guns?

48 votes

Is there such thing as a "one-person" door?

45 votes
Accepted

How would people detect a 1 year time jump between star systems?

36 votes

What manner of weapons and armor would be suitable for freezing conditions in the middle ages?

34 votes
Accepted

How long will it take to discover they live on a moon and not on a planet?

34 votes
Accepted

What should a god put on an island, so that its human settlers will more quickly achieve an industrialised society?

33 votes

How can I justify an Iron monopoly?

32 votes

Would trams be workable on a low-gravity world?

30 votes
Accepted

Would building a Dyson sphere inside the Earth's orbit render our planet uninhabitable?

30 votes

A subset of humanity is immortal, how do I stop them from financially dominating?

29 votes

Assassin's bullet with mercury

28 votes

Could people in a post-apocalyptic setting work around the fact that fuel expires?

26 votes

Always a full Moon for the Emperor - Can this be achieved with solar panels and LEDs?

26 votes
Accepted

Is there a clever one-letter code to describe worlds?

26 votes

Why would a berry have a slow-acting poison?

25 votes

Would blue-collar jobs still be done by people in a scifi setting?

25 votes

What non-electrical, basic tool from today, could be made that would change the world in ancient times?

24 votes

Why does this one planet still have slaves?

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