User dot_Sp0T

216

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13

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31k

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Is there a single historic event which could be changed to cause the USA to use SI units?

Dec 21 '18 at 14:36 Ian Kemp 689

114

votes

17

answers

8k

views

In space, do “shipping lanes” make sense?

space travel

Dec 17 '18 at 23:04 The Imperial 3,245

106

votes

11

answers

36k

views

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

geography cities medieval-europe

Jul 19 '18 at 3:19 user9441904 1

106

votes

6

answers

29k

views

How would having multiple moons affect tides?

planets moons

Mar 30 '17 at 17:59 Luke Steers 1

91

votes

37

answers

16k

views

How to keep humans pilots instead of AI in sci-fi future?

space artificial-intelligence futurology

Sep 1 '18 at 22:23 Demigan 18.1k

89

votes

17

answers

14k

views

Are there logical gaps in the periodic table in which you could insert a new mystery element for use as a fuel?

science-based chemistry fuels

Aug 19 at 14:14 Scott 247

75

votes

5

answers

7k

views

How quickly and accurately should news travel in a rural medieval setting?

communication medieval-europe

Dec 15 '15 at 20:09 Community♦ 1

70

votes

14

answers

16k

views

Is it possible to make an alloy that melts at low temperatures and solidifies at high temperatures?

chemistry materials

Aug 24 '17 at 2:17 Willk 162k

68

votes

18

answers

12k

views

Mineral that explodes when cooling down

science-based physics science-fiction chemistry

May 8 '17 at 1:04 Level River St 2,229

68

votes

24

answers

17k

views

What is the utilitarian purpose of artificial waterfalls?

water infrastructure city

Jan 17 '19 at 18:30 EngrStudent - Reinstate Monica 234

60

votes

12

answers

8k

views

Justifying why a troll's skin would turn to stone in sunlight

creature-design fantasy-races anatomy mythology

Jun 28 at 11:18 Michael Mortensen 1,664

56

votes

3

answers

22k

views

Creating a realistic world map - Currents, Precipitation and Climate

science-based climate currents

Feb 17 '17 at 8:07 Jos Van Iersel 1

56

votes

17

answers

15k

views

Is space piracy orbitally practical?

reality-check space space-travel orbital-mechanics

Dec 6 '16 at 14:24 Community♦ 1

53

votes

10

answers

5k

views

Is there any organization to a shantytown of storage containers?

construction dystopia infrastructure

Apr 1 '17 at 17:00 Community♦ 1

53

votes

9

answers

7k

views

Are there any ways to allow some form of FTL travel without allowing time travel?

science-based space-travel time-travel faster-than-light

Nov 21 '17 at 9:52 James McLellan 8,396

53

votes

15

answers

11k

views

Would a steam powered plane be able to cross the Atlantic ocean?

science-based reality-check technology alternate-history flight

Sep 24 at 23:11 overlord 5,872

52

votes

31

answers

13k

views

Reason for an exterior control panel on a space ship

spaceships artificial-intelligence engineering

Feb 15 '19 at 0:36 Cyn says make Monica whole 19.6k

52

votes

11

answers

10k

views

Only the Swiss Are Left - Can They Survive?

post-apocalypse

Oct 31 at 20:06 ak7 433

51

votes

21

answers

13k

views

What natural phenomena could make an island unreachable?

science-based climate geography

Jul 13 '17 at 5:27 JDługosz 65k

50

votes

6

answers

10k

views

Could two planets be tidally locked to each other so close they share their atmosphere?

planets reality-check physics orbital-mechanics

May 12 at 21:53 Juraj 1,404

42

votes

5

answers

4k

views

Why does my species tock like it ticks?

creature-design evolution psychology

Dec 30 '16 at 3:43 Cort Ammon 121k

41

votes

11

answers

6k

views

What would people on multi-generational ships wear?

generation-ships clothing

Feb 11 '16 at 14:04 Tom 6,604

41

votes

15

answers

12k

views

Biological CPUs - why would the developed world fear them?

Sep 3 '17 at 22:54 Jim Klimov 153

37

votes

15

answers

12k

views

Non-relativistic FTL is trivial. Why are spaceships mostly pretty small?

space-travel spaceships

Sep 25 '17 at 13:41 Ross 2,206

37

votes

16

answers

26k

views

Modern soldiers carry axes instead of combat knives. Why?

weapons modern-age melee

Mar 12 '17 at 11:45 Sec SE - clear Monica's name 17k

36

votes

14

answers

10k

views

How could a sail powered airship work?

flight airships

Nov 7 '17 at 18:36 user535733 14.2k

36

votes

10

answers

11k

views

How can I destroy a gas giant planet?

science-based planets space

Dec 4 '17 at 13:17 JDługosz 65k

36

votes

12

answers

8k

views

How to stop a massive canal system from silting up?

science-based earth-like terraforming ancient-history rivers

Nov 30 '17 at 22:30 KalleMP 672

34

votes

24

answers

12k

views

What is the most reasonable way for non-binary computers to have become standard?

technology alternate-history computers

Dec 11 '18 at 17:04 Amarth 191

34

votes

6

answers

4k

views

Creating a realistic world map - Mineralogy

geology worldbuilding-process natural-resources

Mar 12 '17 at 22:08 Community♦ 1

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Is there a single historic event which could be changed to cause the USA to use SI units?

In space, do “shipping lanes” make sense?

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

How would having multiple moons affect tides?

How to keep humans pilots instead of AI in sci-fi future?

Are there logical gaps in the periodic table in which you could insert a new mystery element for use as a fuel?

How quickly and accurately should news travel in a rural medieval setting?

Is it possible to make an alloy that melts at low temperatures and solidifies at high temperatures?

Mineral that explodes when cooling down

What is the utilitarian purpose of artificial waterfalls?

Justifying why a troll's skin would turn to stone in sunlight

Creating a realistic world map - Currents, Precipitation and Climate

Is space piracy orbitally practical?

Is there any organization to a shantytown of storage containers?

Are there any ways to allow some form of FTL travel without allowing time travel?

Would a steam powered plane be able to cross the Atlantic ocean?

Reason for an exterior control panel on a space ship

Only the Swiss Are Left - Can They Survive?

What natural phenomena could make an island unreachable?

Could two planets be tidally locked to each other so close they share their atmosphere?

Why does my species tock like it ticks?

What would people on multi-generational ships wear?

Biological CPUs - why would the developed world fear them?

Non-relativistic FTL is trivial. Why are spaceships mostly pretty small?

Modern soldiers carry axes instead of combat knives. Why?

How could a sail powered airship work?

How can I destroy a gas giant planet?

How to stop a massive canal system from silting up?

What is the most reasonable way for non-binary computers to have become standard?

Creating a realistic world map - Mineralogy