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General Q&A about worldbuilding and other speculative developments that can be extrapolated from science.

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Activity Age Score Native Lottery
60%
+1 −0
Is a genetically modified human with a much higher height plausible?

3 answers  ·  last activity 7 days ago by ‭Razetime‭

evolution humans
71%
+3 −0
Wings going from locomotive purposes in juveniles to sexual purposes in adults, plausible?

0 answers  ·  last activity about 1 month ago by ‭Lundin‭

evolution sex species
71%
+3 −0
How do I realistically keep my large mammalian predator hidden from other pack hunters.

3 answers  ·  last activity about 2 months ago by ‭Lundin‭

biology creature-design mammals abilities
75%
+4 −0
Magnet strong enough to rip the iron out of your body feasible?

2 answers  ·  last activity 2 months ago by ‭DonielF‭

biology magnetism electromagnetism
66%
+2 −0
Plausibility of "multi-type transmissible animal cell tumor" to form more complex structures.

0 answers  ·  last activity 3 months ago by ‭Cazadorro‭

medical animal tumor cell
66%
+2 −0
How to make an animal which can only breed for a certain number of generations?

13 answers  ·  last activity 3 months ago by ‭James Jenkins‭

biology science-based
55%
+3 −2
How to Terraform a Dead Earth

1 answer  ·  last activity 3 months ago by ‭Olin Lathrop‭

science-based terraforming science-fiction alternate-earth
71%
+3 −0
Restricted Directions for an Alcubierre Drive?

2 answers  ·  last activity 3 months ago by ‭lsusr‭

science-based spaceships science-fiction
71%
+3 −0
Would a 200-Pound Dwarf Still Need to Wear Clothing?

1 answer  ·  last activity 3 months ago by ‭pnuts‭

biology science-based adaptability humanoid alternate-earth
71%
+3 −0
Avoiding Incidental Ion Drive damage to Following Vehicles?

2 answers  ·  last activity 3 months ago by ‭dmckee‭

space-travel ion drive
72%
+6 −1
Why would merfolk have hair?

21 answers  ·  last activity 4 months ago by ‭PinoBatch‭

reality-check evolution creature-design merfolk hair
81%
+7 −0
Would a huge amount of asteroids hitting Earth change its rotation speed or destroy the planet?

1 answer  ·  last activity 4 months ago by ‭HDE 226868‭

asteroids earth
66%
+2 −0
Are geographically typed planets realistic?

5 answers  ·  last activity 4 months ago by ‭Canina‭

reality-check planets geography
60%
+1 −0
Is this planet's atmosphere stable and reasonable, and anything to keep in mind for lifeforms living in it?

3 answers  ·  last activity 4 months ago by ‭Canina‭

atmosphere reality-check
40%
+0 −1
How to explain a mermaid's tail morphing into legs and vice versa?

4 answers  ·  last activity 4 months ago by ‭PinoBatch‭

underwater merfolk fantasy-races
50%
+1 −1
How to go from a free person to a slave

11 answers  ·  last activity 4 months ago by ‭PinoBatch‭

science-based psychology slavery
50%
+1 −1
How should I create my Merfolks to make them landbased?

3 answers  ·  last activity 4 months ago by ‭PinoBatch‭

biology underwater merfolk
40%
+0 −1
Earth where all of Equidae went extinct via Ice Age... - Effects

3 answers  ·  last activity 4 months ago by ‭PinoBatch‭

reality-check science-based fauna
40%
+0 −1
Does the sun being blocked affect electricity?

6 answers  ·  last activity 4 months ago by ‭PinoBatch‭

science-based natural-disasters electricity
50%
+1 −1
3D Printer / Replicator : Raw Materials and Distribution Cables

3 answers  ·  last activity 4 months ago by ‭manassehkatz‭

science-based technology science-fiction
42%
+1 −2
Oh crap, it's 2020ad, and the Earth is about to explode! Can we make it to the stars?

9 answers  ·  last activity 4 months ago by ‭manassehkatz‭

apocalypse space-colonization
77%
+5 −0
How efficient can a Dyson sphere be?

0 answers  ·  last activity 4 months ago by ‭HDE 226868‭

physics dyson-spheres megastructures energy materials
33%
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"Life post-Singularity", or "How to survive without Instagram"

15 answers  ·  last activity 4 months ago by ‭wizzwizz4‭

society computers artificial-intelligence near-future singularity
75%
+4 −0
Competently Mobile Photosynthetic Animal?

1 answer  ·  last activity 4 months ago by ‭Cazadorro‭

biology science-based plant animal
50%
+1 −1
Can a organism control its metabolism and the heat it's generating?

1 answer  ·  last activity 4 months ago by ‭wizzwizz4‭

biology xenobiology
81%
+7 −0
Is it possible to create a beam of non-relativistic neutrinos?

1 answer  ·  last activity 4 months ago by ‭dmckee‭

physics technology relativity particle-physics
66%
+2 −0
How fast would strange matter conversion go?

1 answer  ·  last activity 4 months ago by ‭HDE 226868‭

science-based physics quantum astrophysics
66%
+4 −1
Black as color of magic

2 answers  ·  last activity 4 months ago by ‭Aliza‭

vision colors
50%
+0 −0
What would this nebula look like from a planet?

3 answers  ·  last activity 4 months ago by ‭Monica Cellio‭

science-based stars nebula light
50%
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How can I safely brighten my secondary star?

5 answers  ·  last activity 4 months ago by ‭Monica Cellio‭

science-based stars light
66%
+2 −0
How do seasons work in a binary system (planet orbits one star, not both)?

5 answers  ·  last activity 4 months ago by ‭Monica Cellio‭

planets science-based stars light
50%
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How much does my secondary star heat the planet orbiting my primary star?

3 answers  ·  last activity 4 months ago by ‭Monica Cellio‭

planets stars
75%
+4 −0
What conditions would cause an extremely dense (dark) coniferous forest to grow?

1 answer  ·  last activity 5 months ago by ‭Olin Lathrop‭

climate forestry ecology
60%
+1 −0
Can velocity drift be used to calculate a radio wave source's distance from Earth?

4 answers  ·  last activity 5 months ago by ‭HDE 226868‭

astronomy radio
60%
+1 −0
Cruelty Free Vampirism [closed]

6 answers  ·  last activity 5 months ago by ‭HDE 226868‭

biology society alternate-history vampires science-fiction
60%
+1 −0
Does crossing a wormhole happen instantaneously, or with the course of time?

2 answers  ·  last activity 5 months ago by ‭‮edoCfOtrA‭

science-based wormholes transportation
60%
+1 −0
How could a bad random number generator explain baryon asymmetry?

3 answers  ·  last activity 5 months ago by ‭HDE 226868‭

science-based physics antimatter computers
60%
+1 −0
Inverse orbital direction

2 answers  ·  last activity 5 months ago by ‭HDE 226868‭

planets orbital-mechanics
66%
+2 −0
What if the Planck constant was exactly zero?

3 answers  ·  last activity 5 months ago by ‭HDE 226868‭

physics quantum
66%
+2 −0
Could there be something like the Higgs field which gives particles their energy in a similar way to how the Higgs boson gives particles their mass?

1 answer  ·  last activity 5 months ago by ‭HDE 226868‭

science-based physics energy science-fiction quantum
60%
+1 −0
Why do flying saucers have to spin while flying?

3 answers  ·  last activity 5 months ago by ‭HDE 226868‭

spaceships technology aliens flying-machines
71%
+3 −0
What would the sky view be like of a final stage massive merged galaxy?

1 answer  ·  last activity 5 months ago by ‭HDE 226868‭

astronomy galactic
66%
+2 −0
Do seasons occur on a tidally-locked planet?

4 answers  ·  last activity 5 months ago by ‭HDE 226868‭

astronomy planets seasons astrophysics tidally-locked
77%
+5 −0
What Factors Could Cause a World to See "Northern" Lights Much Closer to the Equator?

4 answers  ·  last activity 5 months ago by ‭Canina‭

astronomy atmosphere
66%
+2 −0
How long would a planet that losses its gravity take to break up?

1 answer  ·  last activity 5 months ago by ‭HDE 226868‭

physics gravity science-fiction
50%
+0 −0
What could cause Earth to drift out of orbit over a period of months to years?

6 answers  ·  last activity 5 months ago by ‭Canina‭

planets science-based apocalypse earth
66%
+2 −0
How can the Hertzsprung-Russell diagram be used in star building?

3 answers  ·  last activity 5 months ago by ‭HDE 226868‭

astronomy stars
60%
+1 −0
What can I add to an oxygen/nitrogen atmosphere to make it unpalatable or poisonous to humans, yet stable and breathable to local creatures?

9 answers  ·  last activity 5 months ago by ‭Canina‭

earth-like atmosphere science-based oxygen chemistry
50%
+1 −1
Anatomically Correct Mokèlé-mbèmbé

3 answers  ·  last activity 5 months ago by ‭Canina‭

biology reality-check evolution science-based creature-design
60%
+1 −0
What would be different if a person has broader visual spectrum than normal

2 answers  ·  last activity 5 months ago by ‭Monica Cellio‭

society science-based humans vision
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