User spraff

36 votes

6 answers

10k views

What's the smallest patch of land a single person could be food-sufficient on indefinitely, in a temperate climate?

asked Jul 19, 2018 at 12:07

25 votes

6 answers

9k views

Can one nuke reliably shoot another out of the sky?

asked Oct 5, 2016 at 14:59

16 votes

10 answers

4k views

How do you keep clean on long, pre-industrial journeys?

asked Nov 24, 2016 at 17:24

15 votes

14 answers

4k views

How might you hack this voting protocol?

asked Sep 22, 2016 at 15:16

11 votes

13 answers

16k views

Which businesses/industries can easily and efficiently launder money? [closed]

asked Jun 8, 2017 at 18:09

10 votes

10 answers

2k views

Can a mountain range form with a very loose surface?

asked Sep 16, 2020 at 21:27

9 votes

11 answers

3k views

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

asked Mar 5 at 9:25

8 votes

2 answers

176 views

How close to a star could a dense asteroid belt reasonably form?

asked Mar 15 at 11:29

6 votes

5 answers

549 views

How fast can heat be carried away from a small source?

asked Dec 10, 2016 at 17:39

5 votes

4 answers

19k views

What's the stealthiest way to knock someone out? [closed]

asked Oct 12, 2017 at 14:06

5 votes

2 answers

870 views

Could a non-relativistic universe be logically consistent?

asked Jan 11, 2015 at 18:54

5 votes

3 answers

253 views

How quickly will water displace if an object levitates above it?

asked Nov 29, 2020 at 23:49

4 votes

6 answers

306 views

How quickly can a continent split and separate without an Extinction Level Event occuring

asked Feb 27 at 18:23

3 votes

3 answers

237 views

How could iron-age ships be modified to withstand extreme storms?

asked Feb 27 at 21:06

3 votes

1 answer

96 views

What physical and medical problems do wild horse twins suffer from? [closed]

asked Jan 30, 2021 at 13:08

3 votes

1 answer

65 views

What are short-term defenses against massive elegtromagnetic disruption?

asked Mar 18, 2017 at 13:21

3 votes

1 answer

123 views

What life would thrive on land which is frequently -- but not always -- doused with seawater?

asked Mar 20 at 12:10

3 votes

2 answers

355 views

Where would aurora borealis be visible if the earth was rotated to move its axis?

asked Apr 18 at 8:04

2 votes

2 answers

173 views

What's the effect of increasing the Earth's rotation on climate?

asked Mar 18 at 9:44

2 votes

2 answers

259 views

Could a 1,000x10,000 mile strip between mountain ranges be drier than the lands either side?

asked Mar 4 at 16:30

2 votes

2 answers

271 views

How quickly can a swarm of insects eat 1kg of meat? [closed]

asked Nov 28, 2020 at 11:48

2 votes

2 answers

284 views

What would happen to an indestructible meteorite?

asked Jun 27, 2020 at 15:36

2 votes

3 answers

268 views

Unicellular organisms evolving extremely rapidly in tiny forest ecosystems

asked Aug 22, 2020 at 13:24

1 vote

1 answer

47 views

Estimating energy of tidal friction in alternative moon scenarios

asked Jun 12 at 8:03

0 votes

1 answer

62 views

Using real examples, how long might it take for the species in a forest/jungle to respond to sudden climate change? [closed]

asked Mar 28 at 9:48

0 votes

0 answers

45 views

Where can I find data on typical size and temperature of a star given mass and age? [duplicate]

asked Apr 15 at 9:06

0 votes

2 answers

142 views

What life forms would appear around decaying animal carcasses in a temperate, rocky desert?

asked Nov 29, 2020 at 13:08

0 votes

2 answers

162 views

How could you improvise a local anaesthetic? [closed]

asked Apr 27, 2018 at 13:19

Stack Exchange Network

28 Questions

What's the smallest patch of land a single person could be food-sufficient on indefinitely, in a temperate climate?

Can one nuke reliably shoot another out of the sky?

How do you keep clean on long, pre-industrial journeys?

How might you hack this voting protocol?

Which businesses/industries can easily and efficiently launder money? [closed]

Can a mountain range form with a very loose surface?

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

How close to a star could a dense asteroid belt reasonably form?

How fast can heat be carried away from a small source?

What's the stealthiest way to knock someone out? [closed]

Could a non-relativistic universe be logically consistent?

How quickly will water displace if an object levitates above it?

How quickly can a continent split and separate without an Extinction Level Event occuring

How could iron-age ships be modified to withstand extreme storms?

What physical and medical problems do wild horse twins suffer from? [closed]

What are short-term defenses against massive elegtromagnetic disruption?

What life would thrive on land which is frequently -- but not always -- doused with seawater?

Where would aurora borealis be visible if the earth was rotated to move its axis?

What's the effect of increasing the Earth's rotation on climate?

Could a 1,000x10,000 mile strip between mountain ranges be drier than the lands either side?

How quickly can a swarm of insects eat 1kg of meat? [closed]

What would happen to an indestructible meteorite?

Unicellular organisms evolving extremely rapidly in tiny forest ecosystems

Estimating energy of tidal friction in alternative moon scenarios

Using real examples, how long might it take for the species in a forest/jungle to respond to sudden climate change? [closed]

Where can I find data on typical size and temperature of a star given mass and age? [duplicate]

What life forms would appear around decaying animal carcasses in a temperate, rocky desert?

How could you improvise a local anaesthetic? [closed]