User JDługosz

161 votes

Accepted

A poison that only works if you know it is there

science-based poisons

answered Jun 13, 2017 at 12:49

112 votes

Why would a language be undubbable by universal (machine) translator?

internal-consistency language

answered Nov 21, 2016 at 21:12

100 votes

Stumped: What would replace 'names' in an alternate history?

alternate-history names

answered Apr 11, 2017 at 15:53

88 votes

Accepted

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

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

answered Jul 12, 2016 at 14:23

83 votes

Accepted

How many coconut trees would be necessary to support a single, middle-aged human on a deserted island?

survival

answered Sep 6, 2016 at 17:00

69 votes

Accepted

Is a moon floating on the atmosphere of a gas giant possible?

internal-consistency planets

answered May 18, 2017 at 2:38

57 votes

Safe way to eat zombies?

internal-consistency food zombies

answered Aug 29, 2016 at 7:07

57 votes

Accepted

Is it possible to orbit inside a gas giant?

internal-consistency spaceships orbital-mechanics gas-giants

answered Jun 14, 2016 at 20:36

54 votes

Accepted

Can a human being live with a continuous stream of blood instead of pulses?

biology bio-mechanics health

answered Aug 26, 2016 at 10:11

54 votes

What realistic way could limit an FTL drive to only travelling between stars?

science-based science-fiction faster-than-light

answered Jun 3, 2017 at 10:48

52 votes

Accepted

Destroy a Planet inside a black hole?

planets weapons science-fiction black-holes

answered Sep 28, 2016 at 8:05

50 votes

Realistic Santa and Reindeer

technology mythical-creatures santa-claus

answered Dec 7, 2015 at 11:56

49 votes

Is this real-time, cross-universe communication system physically viable?

science-based internal-consistency space communication

answered Feb 28, 2016 at 9:33

47 votes

War between two type III civilizations from the perspective of a type II civilization

warfare kardashev-scale interspecies-relations diplomacy

answered Aug 5, 2016 at 15:58

47 votes

What is the minimum radius of a circular corridor for the walls to appear straight?

science-based humans architecture

answered Apr 6, 2017 at 8:21

46 votes

Accepted

Hard Sci-fi energy shields

science-based technology spaceships

answered Mar 22, 2015 at 3:44

45 votes

What would count or define as an eldritch abomination?

magic aliens horror

answered Jul 10, 2016 at 13:19

41 votes

How do spaceship-mounted railguns not destroy the ships firing them?

internal-consistency spaceships weapon-mass-destruction railguns

answered Oct 18, 2016 at 22:23

35 votes

Accepted

How powerful of a computer do I need to simulate and emulate a human brain?

science-based futurology computers sim-humans

answered Apr 11, 2015 at 5:29

35 votes

What's the feasibility of using the earth as a generation ship

internal-consistency generation-ships

answered Jun 16, 2017 at 14:52

33 votes

Why do people create fictional languages?

language worldbuilding-process

answered Jun 14, 2016 at 15:24

33 votes

Accepted

How to increase the efficiency of lungs

science-based creature-design evolution

answered Jul 9, 2017 at 19:30

32 votes

Could a species evolve a biological gravitational wave detector?

evolution gravitational-waves

answered Feb 14, 2016 at 17:54

30 votes

Cooking underwater

technology merfolk

answered May 22, 2015 at 14:59

28 votes

Accepted

What are some plausible super materials?

science-based physics chemistry engineering materials

answered Nov 15, 2015 at 23:21

28 votes

How could Medieval cultures defend themselves against dragons?

medieval dragons

answered May 7, 2015 at 23:24

27 votes

Is it a forgone conclusion that any exo-bacteria discovered on an alien, albeit Earth-like planet will be deadly to human life?

science-based biology xenobiology space-colonization ecology

answered Aug 5, 2016 at 20:32

27 votes

Would the atmosphere of an alien planet with the following mixture of gases be breathable to humans?

biology planets atmosphere chemistry

answered Jun 20, 2016 at 8:43

27 votes

How can I explain English existing in a fantasy world?

internal-consistency language alternate-worlds alternate-reality

answered Jan 19, 2017 at 20:43

27 votes

How can I convince the internet that my magic is real?

magic internet

answered Jan 31, 2017 at 8:27

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1,327 Answers

A poison that only works if you know it is there

Why would a language be undubbable by universal (machine) translator?

Stumped: What would replace 'names' in an alternate history?

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

How many coconut trees would be necessary to support a single, middle-aged human on a deserted island?

Is a moon floating on the atmosphere of a gas giant possible?

Safe way to eat zombies?

Is it possible to orbit inside a gas giant?

Can a human being live with a continuous stream of blood instead of pulses?

What realistic way could limit an FTL drive to only travelling between stars?

Destroy a Planet inside a black hole?

Realistic Santa and Reindeer

Is this real-time, cross-universe communication system physically viable?

War between two type III civilizations from the perspective of a type II civilization

What is the minimum radius of a circular corridor for the walls to appear straight?

Hard Sci-fi energy shields

What would count or define as an eldritch abomination?

How do spaceship-mounted railguns not destroy the ships firing them?

How powerful of a computer do I need to simulate and emulate a human brain?

What's the feasibility of using the earth as a generation ship

Why do people create fictional languages?

How to increase the efficiency of lungs

Could a species evolve a biological gravitational wave detector?

Cooking underwater

What are some plausible super materials?

How could Medieval cultures defend themselves against dragons?

Is it a forgone conclusion that any exo-bacteria discovered on an alien, albeit Earth-like planet will be deadly to human life?

Would the atmosphere of an alien planet with the following mixture of gases be breathable to humans?

How can I explain English existing in a fantasy world?

How can I convince the internet that my magic is real?