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Q&A What would be needed for the entire planet to have a polar climate?

I have wanted to write a story before about people on an arctic planet and other animals, particularly reptiles metamorphosing into polar bear people who hibernate through the winter. But is it po...

4 answers  ·  posted 7y ago by Caters‭  ·  last activity 6y ago by Caters‭

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Q&A What are the implications of multiple cooperating intelligent species with different spectral ranges for vision?

Suppose you had two intelligent species that came together and built a society or whatever. For the sake of example, we'll call them species A and species B. Species A evolved to see some subset of...

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

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Q&A Virtual Reality and Physical Trauma

How realistic is the trope that wounds received in a virtual reality (VR) transfer to our own? Examples: In the Matrix (movie) and Neuromancer (novel), cuts, scrapes, and bruises seemingly jump f...

7 answers  ·  posted 7y ago by Englishman Bob‭  ·  last activity 6y ago by Englishman Bob‭

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Q&A The Moon needs water--but how?

So SpaceX and the like are well underway to colonizing the Moon, but they've hit a snag. The colonists, of course, need water--and lots of it, for drinking, preparing food, growing plants, breathin...

7 answers  ·  posted 7y ago by Ambrose Winters‭  ·  last activity 7y ago by Ambrose Winters‭

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Q&A How would the landscape appear under the influence of extreme windstorms?

I'm building a world with almost weekly extreme windstorms, driving the residents to either live underground or in the 'wind shadow' of sealed-off valleys. To sum up the windstorms' power, "You kno...

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

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Q&A Industrial Prerequisites for Mechanized Warfare (Post-Apocalypse Edition)

So the Human World has fallen apart: the grid is down, governments have imploded, the economy is in shambles, people have died in the billions, global warming has made severe weather (much more) co...

7 answers  ·  posted 7y ago by Geoffrey Carlton‭  ·  last activity 7y ago by Geoffrey Carlton‭

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Q&A Is an offset mountain range plausible?

For my world, I would like a coastal mountain range that partway along its length is offset by a few (say, 100) kilometres, forming a pass through the mountains, like so: (N.B. I've drawn this ...

3 answers  ·  posted 6y ago by walrus‭  ·  last activity 6y ago by walrus‭

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Q&A Reality Check: Is This Habitable Long Term for Humans

Planet: Xibalba (Mayan Hell) Tidally locked planet around a red dwarf that is very active with solar flares being a daily danger. The habitable zone around the planet is made up almost entirely ...

3 answers  ·  posted 6y ago by Dan Clarke‭  ·  last activity 6y ago by Dan Clarke‭

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Q&A How can I determine the length of a growing season on a world with slightly different orbital parameters

(I bolded the actual question, below, so if you want to skip the preamble scroll down to the bold lettering) I am working on a world that is very similar to earth in some ways, exactly the same m...

1 answer  ·  posted 6y ago by sudnadja‭  ·  last activity 6y ago by sudnadja‭

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Q&A Worlds with different physics

So I have some worlds with different physics, and need some way to explain it. As with other sci-fi, it would seem best to find something plausible but may be extremely unlikely or have negligible ...

5 answers  ·  posted 6y ago by EPICI‭  ·  last activity 6y ago by EPICI‭

Question astronomy physics
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Q&A What would the changes necessary for powered flight using rib-derived "wings" look like?

I'm working on a humanoid vertebrate species that I'd like to be capable of true, flapping flight, but still have arms and legs completely separate from the wings. I also wish to avoid a "six-limb...

2 answers  ·  posted 6y ago by Cowrie‭  ·  last activity 6y ago by Cowrie‭

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Q&A How do I calculate solar altitude and hour angle from the surface of another planet?

I'm trying to calculate the solar declination at the solstices, solar altitude at solar noon, and hour angles at sunrise and sunset to build a standing stone calendar at latitude 53.8 degrees South...

1 answer  ·  posted 6y ago by Rúnatál Davino‭  ·  last activity 6y ago by Rúnatál Davino‭

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Q&A Language Divergence on a Lost Colony

I've read several of the questions about language shifting and diffusion here, and it has unfortunately left me more unsure of things than I was before. Situation: Colonists on an arid planet s...

5 answers  ·  posted 6y ago by Dan Clarke‭  ·  last activity 6y ago by Dan Clarke‭

Question language
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Q&A Immune resistance to biological colonisation

I'm thinking of a plot where the Earth is taken over and literally eaten by a race of giant alien beings who use mass-energy conversions to power themselves (These guys are as big as the sun, body ...

6 answers  ·  posted 6y ago by Budhaditya Ghosh‭  ·  last activity 6y ago by Budhaditya Ghosh‭

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Q&A Electrical grid based on devices in series using constant currents, not devices in parallel using constant voltages

Mains power electrical systems on Earth supply a fixed standardized voltage to a number of devices, which are all wired in parallel with each other. However, on the planet I'm writng about, they d...

5 answers  ·  posted 6y ago by AJMansfield‭  ·  last activity 6y ago by AJMansfield‭

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Q&A Side effects of having bulletproof skin?

In this world, there exist a race of humanoid people which, for simplicity, we'll call Rockfolk. Their skin is grey, and visually resembles stone. It is also exceptionally tough and durable, to th...

9 answers  ·  posted 6y ago by Makst‭  ·  last activity 6y ago by Makst‭

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Q&A Effects of Rings - Debris?

I've been thinking about writing a fantasy novel set on an earth-like world with Saturn-like rings. I've been doing some research here by looking up questions about worlds with rings, of which ther...

1 answer  ·  posted 6y ago by Thomas Myron‭  ·  last activity 6y ago by Thomas Myron‭

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Q&A How large and heavy would an arcology have to be?

I am trying to work out the size and (because this is among other things for populating a rotating habitat) weight of an arcology made to house, say, 5000 people - that seems a good number for a se...

1 answer  ·  posted 7y ago by Zuthal‭  ·  last activity 5y ago by Zuthal‭

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Q&A Would Floating Islands Dampen Waves on a Water World?

This is a water world with depths ranging from 2-3 kilometers deep up to vast shallows of only a few meters deep usually around volcanic islands, where there are coral islands not bigger than Hawai...

5 answers  ·  posted 6y ago by Dan Clarke‭  ·  last activity 6y ago by Dan Clarke‭

Question weather ocean
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Q&A What would be the effects of a large moon?

I am considering writing a fantasy novel. This novel would be set on an earth-like planet, but certain story details require that the planet have either a much larger or much closer moon than Earth...

2 answers  ·  posted 7y ago by Thomas Myron‭  ·  last activity 6y ago by Thomas Myron‭

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Q&A What effect will mining on the Moon have long term?

Mining on the Moon, and by that I mean removing mass from the Moon, I believe will affect the equilibrium of the planet and cannot be compared to mining on Earth. When we mine on Earth we don,t rem...

6 answers  ·  posted 7y ago by margot‭  ·  last activity 5y ago by margot‭

Question moons
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Q&A If there are water oceans, must there be oxygen in the atmosphere?

I am trying to create a planet that either has no oxygen in the air, or it has very little; i.e. not enough to sustain humans without the use of a breathing apparatus. Large portions of the planet ...

8 answers  ·  posted 7y ago by ECP‭  ·  last activity 6y ago by ECP‭

Question atmosphere ocean
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Q&A What evolutionary advantages would limiting cells per organism give?

My previous question was how to classify a domain (now superdomain) of duocellular life named Duotorusa. Anyone who has taken high school biology know that all life on earth are divided into th...

2 answers  ·  posted 7y ago by JSCoder says Reinstate Monica‭  ·  last activity 6y ago by JSCoder says Reinstate Monica‭

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Q&A What makes a dragon's scale so tough?

Many fantasy stories involve some variation of a dragon, and while there's a lot of variation in whether or not they fly, if they can breathe fire, how magical they are, etc., the strength of drago...

7 answers  ·  posted 7y ago by Jetscooters‭  ·  last activity 6y ago by Jetscooters‭

Question biology dragons
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Q&A Tattoos on Chitin Armor

If a humanoid species of what are essentially people covered in chitin, how would they color themselves in the way we get tattoos? I considered the idea of etching or carving, but that wouldn't lea...

7 answers  ·  posted 7y ago by Ely Miller‭  ·  last activity 6y ago by Ely Miller‭