User JBH

10

64

votes

21

answers

17k

views

Is it possible to kill all life on Earth?

Jun 7 at 19:00 tuskiomi 746

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 81

13

49

votes

14

answers

9k

views

Can I produce a true 3D orbit?

science-based reality-check orbital-mechanics

Sep 1 at 21:32 Argo 21

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 2,882

5

42

votes

18

answers

8k

views

How can Santa defend himself?

santa-claus self-defense

Dec 31 at 11:18 The Great Duck 1,095

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 at 4:47 JBH 54.7k

7

39

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 648

5

37

votes

10

answers

4k

views

Managing heat dissipation in a magic wand

science-based protection thermodynamics

May 19 at 4:53 Mark Ripley 1,612

6

36

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 at 21:39 DrunkenSailor 111

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 1,640

8

32

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 505

30

29

votes

1

answer

1k

views

A list of worldbuilding resources

worldbuilding-process worldbuilding-resources software-recommendations

Jun 10 at 14:43 JBH 54.7k

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 at 3:14 Tim B II 36.2k

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 at 16:11 chasly from UK 21.9k

13

votes

4

answers

368

views

Navigating storm fronts in space

Apr 18 at 4:42 Muze 699

2

13

votes

4

answers

884

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

2

13

votes

3

answers

396

views

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

creature-design technological-development xenobiology

Jan 1 '18 at 2:06 Oleg Lobachev 2,098

1

11

votes

2

answers

197

views

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

science-based electromagnetism detection

Sep 10 at 18:55 Ash 29.5k

5

10

votes

4

answers

796

views

Feasibility of a purely mechanical grayscale “computer monitor”

science-based reality-check steampunk

Jan 21 at 9:48 Artelius 1,037

2

10

votes

4

answers

262

views

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

hard-science chemistry mars

Jan 4 at 3:54 Thucydides 83.2k

3

10

votes

6

answers

725

views

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

science-based planets gravity stars

Sep 28 at 22:11 cmaster 3,962

1

10

votes

2

answers

232

views

Habitability of a world inside a dark nebula

reality-check planets habitability nebula

Jan 9 '18 at 0:49 Cognisant 4,357

2

10

votes

6

answers

319

views

What technologies might lead to or support “perfect recycling”

science-based technology

Jan 4 '18 at 2:17 Sherwood Botsford 7,850

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 at 23:01 AMADANON Inc. 1,161

3

9

votes

4

answers

219

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

221

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 at 13:53 chasly from UK 21.9k

1

6

votes

5

answers

691

views

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

gravity orbital-mechanics

Dec 23 at 6:35 JBH 54.7k

6

votes

2

answers

213

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

686

views

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

science 2d

Aug 31 '17 at 12:56 Separatrix 88.7k

1

5

votes

2

answers

265

views

How far can a human see?

science-based atmosphere vision

Nov 14 at 10:59 kingledion 76.2k

Stack Exchange Network

current community

your communities

more stack exchange communities

Next badge

43 Questions

Is it possible to kill all life on Earth?

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

Can I produce a true 3D orbit?

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

How can Santa defend himself?

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

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

Managing heat dissipation in a magic wand

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

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

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

A list of worldbuilding resources

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

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

Navigating storm fronts in space

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

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

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

Feasibility of a purely mechanical grayscale “computer monitor”

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

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

Habitability of a world inside a dark nebula

What technologies might lead to or support “perfect recycling”

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

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

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

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

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

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

How far can a human see?