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Top Questions
26
votes
How do you non-catastrophically reduce the mass of the Sun by half?
science-fiction
orbital-mechanics
stars
solar-system
asked Sep 26, 2018 at 15:43
worldbuilding.stackexchange.com
13
votes
Can the Sun loose enough mass that Saturn's current velocity becomes escape velocity?
science-based
gravity
orbital-mechanics
asked Sep 25, 2018 at 15:31
worldbuilding.stackexchange.com
6
votes
How many nukes can explode in the US without seriously affecting Canada?
warfare
weapons
alternate-history
politics
nuclear-weapons
asked Jan 21, 2018 at 17:52
worldbuilding.stackexchange.com
6
votes
Can enough CO2 be captured, in order to reduce global warming, to reduce oxygen levels to suffocating levels?
reality-check
environment
atmosphere
climate-change
oxygen
asked Feb 19, 2019 at 16:43
worldbuilding.stackexchange.com
5
votes
How do you detect a rock in interstellar space?
space
space-travel
generation-ships
asked Oct 13, 2017 at 1:18
worldbuilding.stackexchange.com
5
votes
How would two generational ships traveling at point eight cee communicate with each other?
space-travel
communication
electromagnetism
asked Dec 27, 2017 at 12:28
worldbuilding.stackexchange.com
Top Answers
75
How do you check if a room behind a door aboard a spaceship has an atmosphere/pressure?
worldbuilding.stackexchange.com
36
A land where money is negative
worldbuilding.stackexchange.com
27
How much gravity should I have on my spaceship?
worldbuilding.stackexchange.com
27
What questions should I ask myself when designing a legal system for a fantasy world?
worldbuilding.stackexchange.com
22
What kind of near-future technology would enable extremely quick, mostly silent, communication between soldiers?
worldbuilding.stackexchange.com
18
What would make planet very hard to pacify?
worldbuilding.stackexchange.com
18
Unmarkable cards
worldbuilding.stackexchange.com
17
How to enforce belief in technology as divine without an enforcing class
worldbuilding.stackexchange.com
15
Human Blood Reactivity on an Alien Species' Skin
worldbuilding.stackexchange.com
14
How can an organ that provides biological immortality be unable to regenerate?
worldbuilding.stackexchange.com
14
Can a person lie if his eyes tell his emotions?
worldbuilding.stackexchange.com
11
Hiding a subterranean alien megastructure
worldbuilding.stackexchange.com
11
How do spaceships determine each other's mass in space?
worldbuilding.stackexchange.com
10
What are the risks with massive banks of batteries/capacitors?
worldbuilding.stackexchange.com
10
Is it possible to make Asteroid Concrete?
worldbuilding.stackexchange.com
10
How to keep up child births in a marriageless society
worldbuilding.stackexchange.com
9
Siege defences for a floating city
worldbuilding.stackexchange.com
9
How can I destroy a great deal of infrastructure without killing many people?
worldbuilding.stackexchange.com
9
Are underground shelters defensible?
worldbuilding.stackexchange.com
9
Given immortality can animals become intelligent?
worldbuilding.stackexchange.com
8
What mechanisms can I use to instantly materialize an object?
worldbuilding.stackexchange.com
8
Would a steam powered plane be able to cross the Atlantic ocean?
worldbuilding.stackexchange.com
8
Immediate physical effects of being exposed to the vacuum of space?
worldbuilding.stackexchange.com
8
The land grows evil and corrupted ... but why?
worldbuilding.stackexchange.com
8
Is it hypothetically possible to create a giant levee that is a non-physical forcefield or electronic membrane?
worldbuilding.stackexchange.com
7
What gases are made by a live, crackling, exposed electrical wire?
worldbuilding.stackexchange.com
7
How would one determine the upper and lower temperature limits for a race of human-sized reptiles?
worldbuilding.stackexchange.com
7
How to travel through space without modern technology
worldbuilding.stackexchange.com
7
Possibility of airless spaceships being used for manned space combat?
worldbuilding.stackexchange.com
7
(Regrowing) Teeth for Immortals?
worldbuilding.stackexchange.com
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