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Worldbuilding
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JBH
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environment
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19/20 answers

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Impact

~1.7m
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155 posts edited
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1,263 votes cast
Summary Answers Questions Tags Badges Favorites Bounties Reputation All actions

43 Questions

Views Newest Activity Votes
10
63
votes
21
answers
18k
views

Is it possible to kill all life on Earth?

hard-science near-future earth weapon-mass-destruction
Jun 7 at 19:00 tuskiomi 905
9
53
votes
10
answers
11k
views

Does my shipboard computer slow down as I approach light speed?

science-based computers electricity relativity
Mar 11 '18 at 17:14 slOOP 91
14
50
votes
14
answers
10k
views

Can I produce a true 3D orbit?

science-based reality-check orbital-mechanics
Sep 1 '18 at 21:32 Argo 21
5
44
votes
18
answers
8k
views

How can Santa defend himself?

santa-claus self-defense
Dec 31 '18 at 11:18 The Great Duck 1,385
3
44
votes
5
answers
7k
views

What are the safety margins for destroying a planet from space?

planets gravity energy weapon-mass-destruction
Apr 26 '18 at 0:09 bta 3,357
9
40
votes
22
answers
4k
views

Is it realistic to believe an apocalyptical setting can last 500+ years?

reality-check society post-apocalypse
Apr 12 '18 at 6:51 Headcrab 1,032
10
39
votes
10
answers
7k
views

Is there any material today that could withstand the impact of a baseball at 0.05c?

science-based spaceships
Sep 3 '18 at 4:47 JBH 59.9k
45
38
votes
1
answer
3k
views

A list of worldbuilding resources

worldbuilding-process worldbuilding-resources software-recommendations
Sep 25 at 14:54 LinkBerest 2,748
5
36
votes
10
answers
4k
views

Managing heat dissipation in a magic wand

science-based protection thermodynamics
May 19 at 4:53 Mark Ripley 1,622
6
34
votes
21
answers
5k
views

My magic system “pays the price” by drawing its energy from the future: should that affect luck, heat, or life?

magic
Jul 22 '18 at 21:39 DrunkenSailor 141
7
34
votes
9
answers
5k
views

How would prolonged use of augmented-reality combat gear affect soldiers?

warfare psychology augmented-reality behaviour
Dec 8 '17 at 9:17 Miller86 1,830
8
33
votes
13
answers
7k
views

What does the view outside my ship traveling at light speed look like?

space-travel light vision
Jun 7 at 9:29 Glorfindel 773
2
14
votes
6
answers
4k
views

Would it be reasonable that vampires cannot drink just any blood type save O-? [closed]

reality-check vampires
Dec 21 '18 at 3:14 Tim B II 47.1k
2
14
votes
3
answers
1k
views

What would the night sky look like for a world on the upper plane of the galaxy, near its rim?

planets galactic
Nov 28 '18 at 16:11 chasly from UK 27.8k
3
14
votes
3
answers
412
views

Are there physiological traits common to all tool-building species?

creature-design technological-development xenobiology
Jan 1 '18 at 2:06 Oleg Lobachev 2,158
 
13
votes
4
answers
381
views

Navigating storm fronts in space

reality-check space-travel navigation supernova
Apr 18 at 4:42 Muze the good Troll. 1
2
13
votes
4
answers
940
views

Is there a habitability zone between the primary and secondary stars of a binary star system?

science-based orbital-mechanics solar-system habitability
Feb 16 at 17:53 Mark S 1
1
11
votes
2
answers
208
views

Would interplanetary transmissions in the Wolf 359 star system be detectable by Earth?

science-based electromagnetism detection
Sep 10 '18 at 18:55 Ash 36.7k
5
10
votes
4
answers
857
views

Feasibility of a purely mechanical grayscale “computer monitor”

science-based reality-check steampunk
Jan 21 at 9:48 Artelius 1,177
2
10
votes
4
answers
297
views

Is it possible to make high-compressive-strength cement on Mars?

hard-science chemistry mars
Jan 4 '19 at 3:54 Thucydides 88.7k
3
10
votes
6
answers
776
views

Can a collision with a neutron star make a planet via the can-o-snakes method?

science-based planets gravity stars
Sep 28 '18 at 22:11 cmaster 4,111
1
10
votes
2
answers
266
views

Habitability of a world inside a dark nebula

reality-check planets habitability nebula
Jan 9 '18 at 0:49 Cognisant 4,672
2
10
votes
6
answers
332
views

What technologies might lead to or support “perfect recycling”

science-based technology
Jan 4 '18 at 2:17 Sherwood Botsford 8,831
 
9
votes
7
answers
2k
views

Could an astronaut in a near-future space ship survive transit through our asteroid belt?

reality-check space-travel near-future survival asteroids
Sep 9 '18 at 23:01 AMADANON Inc. 1,191
3
9
votes
4
answers
244
views

Smartphone camera resolution can image a human retina: can we save retina biometrics?

science-based near-future security photography
Jun 8 '18 at 6:57 Anonymous 231
 
6
votes
2
answers
243
views

I cast my stop-time spell and really, really, really want to punch my sworn enemy - which of these two scenarios is more believable?

science-based reality-check energy time-manipulation
Dec 30 '18 at 13:53 chasly from UK 27.8k
1
6
votes
5
answers
695
views

How likely is the flotsam of a space battle to be captured by our sun's gravity well?

gravity orbital-mechanics
Dec 23 '18 at 6:35 JBH 59.9k
 
6
votes
2
answers
274
views

Could solar sails and solar wind plausibly decelerate a ship traveling at 0.05c?

science-based reality-check solar-sails
May 1 '18 at 18:39 Wandering Momentum 84
1
6
votes
6
answers
722
views

Can a 2D object living in a shadow be examined in a 3D world?

science 2d
Aug 31 '17 at 12:56 Separatrix 99.7k
 
5
votes
5
answers
209
views

Logical Location for my Secure Martian Datacenter

near-future communication construction mars
Jun 18 at 14:05 Roger 5,111
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