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Q&A

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

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How can I estimate how far into a cave network breathing is possible?

2 answers  ·  posted over 7 years ago by trichoplax‭  ·  last activity 7y ago by trichoplax‭

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Eye in the Sky Effect

5 answers  ·  posted 7y ago by Donny‭  ·  last activity 7y ago by Donny‭

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Cost of colony on Mars/Moon per metric ton

1 answer  ·  posted 7y ago by Irigi‭  ·  last activity 7y ago by Irigi‭

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What is the soonest we could possibly have a self-sufficient base on Mars?

7 answers  ·  posted over 7 years ago by overactor‭  ·  last activity 7y ago by overactor‭

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How soon will the first underwater cities be built?

4 answers  ·  posted 7y ago by Sheraff‭  ·  last activity 7y ago by Sheraff‭

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Space station mass per person

1 answer  ·  posted 7y ago by Irigi‭  ·  last activity 7y ago by Irigi‭

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Shallow sea world - plausable geology?

4 answers  ·  posted 7y ago by Chris Camacho‭  ·  last activity 7y ago by Chris Camacho‭

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Gravitational effects of portals at different heights

3 answers  ·  posted 7y ago by HugoRune‭  ·  last activity 7y ago by HugoRune‭

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Can we breathe the moon's crust?

3 answers  ·  posted 7y ago by Kromey‭  ·  last activity 7y ago by Kromey‭

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Where to place industry in a megastructure?

3 answers  ·  posted 7y ago by Philipp‭  ·  last activity 7y ago by Philipp‭

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What do we get if we eat the moon?

1 answer  ·  posted 7y ago by Danny Reagan‭  ·  last activity 7y ago by Danny Reagan‭

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What would furniture be like in a zero-G home?

3 answers  ·  posted over 7 years ago by congusbongus‭  ·  last activity 7y ago by congusbongus‭

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What would change in a dominant/predatory animal given two heads?

2 answers  ·  posted 7y ago by CodeMoose‭  ·  last activity 7y ago by CodeMoose‭

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Varying Gravity

2 answers  ·  posted over 7 years ago by The Glis Jackel‭  ·  last activity 7y ago by The Glis Jackel‭

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Life on an Earth-like planet with solid core?

2 answers  ·  posted over 7 years ago by Florian Hollandt‭  ·  last activity 7y ago by Florian Hollandt‭

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How would a completely urbanized city-planet support its population?

5 answers  ·  posted over 7 years ago by neph‭  ·  last activity over 7 years ago by neph‭

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How realistic are four legged aquatic animals?

4 answers  ·  posted over 7 years ago by Liath‭  ·  last activity over 7 years ago by Liath‭

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Is it possible to terraform a hot planet?

1 answer  ·  posted over 7 years ago by Vincent‭  ·  last activity over 7 years ago by Vincent‭

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What is the maximum size of a flying creature?

3 answers  ·  posted over 7 years ago by neph‭  ·  last activity over 7 years ago by neph‭

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What factors go into whether a moon or planet is tidally locked?

3 answers  ·  posted over 7 years ago by bowlturner‭  ·  last activity over 7 years ago by bowlturner‭

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Would gravity be constant inside a Bernal sphere?

3 answers  ·  posted over 7 years ago by Village‭  ·  last activity over 7 years ago by Village‭

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Social implications of intelligent species that practices external fertilization

4 answers  ·  posted over 7 years ago by overactor‭  ·  last activity over 7 years ago by overactor‭

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Maximum Earth population by wiping out biological life

2 answers  ·  posted over 7 years ago by trichoplax‭  ·  last activity over 7 years ago by trichoplax‭

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What are the factors influencing the temperature of my world?

1 answer  ·  posted over 7 years ago by Vincent‭  ·  last activity over 7 years ago by Vincent‭

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