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13.1k posts
 
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Q&A How to keep my colonists primitive?

The story will take place near a galaxy filled with space faring civilizations. In this galaxy, a small group of scientists realize that their side is on the losing side of a war that will probabl...

18 answers  ·  posted 6y ago by Jim Wolford‭  ·  last activity 6y ago by Jim Wolford‭

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Q&A Could a giant asteroid impact break off to form a new, habitable moon while leaving the original planet in ruins?

As the title says, I'm wondering if a species could theoretically boost an asteroid near a planet for easier mining access. If this was to accidentally crash into the original planet could a habita...

3 answers  ·  posted 6y ago by trippple333‭  ·  last activity 6y ago by trippple333‭

Question planets asteroids
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Q&A How does a small starting population affect diversity of a colony?

Scenario: A colony of 20,000 is founded, and has no access to any further inhabitants. Assuming this colony is humans of varying traits (genetics such as skin color, eye color, etc) with no single ...

4 answers  ·  posted 6y ago by Andon‭  ·  last activity 6y ago by Andon‭

Question biology humans
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Q&A How do I form a location like the Ethiopian highlands?

I'm continuing to work on my map, and one thing that's giving me difficulty is figuring out the geology of a region that I wanted to be similar to the Ethiopian highlands and African rift valley. T...

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

Question geology
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Q&A How to put a lake on the ceiling?

Another user's answer to a recent question, specifically the way it was worded, gave me a vision I cannot shake. Our intrepid adventurer, Joe A. Venture, is making his way through a subterranean n...

16 answers  ·  posted 6y ago by Frostfyre‭  ·  last activity 6y ago by Frostfyre‭

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Q&A How could two alternate realities "blend" at a single point in space time?

From: https://en.wikipedia.org/wiki/Multiverse The multiverse (or meta-universe) is a hypothetical set of various possible universes including the universe which we live in. Together, these u...

10 answers  ·  posted 6y ago by Len‭  ·  last activity 5y ago by Len‭

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Q&A How could the rain fall slower?

I was thinking about people who once told me that I must feel the rain earlier than them (I'm tall). So I thought of a world where the rain falls so slowly that the humans of different size living ...

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

Question planets water
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Q&A Reasons and advantages to this form of sexual dimorphism

I want to have my aliens have a culture that clashes with human modern culture and one way I want to achieve this is having some extreme sexual dimorphism. For these aliens the sexual dimorphism ...

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

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Q&A Orbital Mass Accelerator. Space Elevator

Can two objects solar powered, equal in weight, traveling on the same orbital path in the opposite directions propel each other to intersect on the opposite side of the Earth in alignment to propel...

4 answers  ·  posted 6y ago by Muze the good Troll.‭  ·  last activity 6y ago by Muze the good Troll.‭

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Q&A Winds on a tidally locked moon of a gas giant

My idea has been a colonized planet or moon with incredibly strong winds so that life is only possible in deep valleys protected from the wind. I recognize that wind is primarily driven by tempera...

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

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Q&A Energy costs of giving Mars and Venus moons: moving gas giant moons vs. capturing a rogue planet?

As many here likely know, one of the factors that make both Mars and Venus uninhabitable to humans are their lack of a magnetosphere to keep solar winds out. In the setting I am working on, I want...

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

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Q&A Growing blue trees

What about the atmosphere of earth makes green the best color for plants, and what would have to change to make blue the best color? The fact that these changes could not happen on earth, an so wou...

7 answers  ·  posted 6y ago by menolo homobavonez‭  ·  last activity 5y ago by menolo homobavonez‭

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Q&A Could sweet and hot peppers come from the same plant?

One of the veggies that my Keplerians grow is peppers. I have heard of some sweet peppers cross pollinating with hot peppers making the sweet peppers hotter and the hot peppers sweeter. However tha...

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

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Q&A Gasses as a biological solvent

Everyone knows that water is necessary for life because it is such a good solvent, but could a lifeform use water vapor as a solvent instead of water, or any other gas that works a solvent instead ...

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

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Q&A Airborne gas capable of paralyzing or "getting high"?

Writing a science fiction where the air outside is not breathable for long periods of time. Some characters get high from the air, but large amounts of it cause the user to become paralyzed or blac...

2 answers  ·  posted 6y ago by Craig James‭  ·  last activity 6y ago by Craig James‭

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Q&A Germanium Based Life

What would Germanium based life look like and what conditions would favor it. I know that it's not that common but I am going to handwave that. What would be the resulting look for such a lifeform...

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

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Q&A How would it be possible for sunlight to cause zombies to self combust into flames

I haven't been here in a while but I got another question, Would it be scientifically possible for sunlight to cause a zombie to self combust into flames? And if they would only self combust if the...

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

Question science-fiction
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Q&A Post-apocalyptic weapons industry

The situation is the usual, we have lots of junk metal lying around in cities, great but not impossible difficulties with logistics (meaning that a few railroads are in operation at immense cost, b...

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

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Q&A Disease Impacts of Ancient Roman Contact with New World

In an alternate timeline, Ceasar lives, forges an alliance by marriage with Egypt and dominates the entire Mediterranean. He then performs a raft of economic and political reforms that basically sk...

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

Question biology diseases sea
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Q&A What are some factors that would induce random, but temporary, bouts of unconciousness?

Are there any such world elements that would seemingly randomly cause creatures to faint for extended periods of time, ranging from a few minutes up, but revert before they started suffering perman...

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

Question earth-like earth
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Q&A Size and Effect of Ocean Tides on My World

I'm building a world that orbits close in to an M-Dwarf sun. I've figured out a bunch of the physical parameters of the world, I just can't quite get a solid handle on my tides. I know my tides wi...

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

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Q&A How would a non-ossified hyoid bone affect the vocal range of a humanoid?

Lately, I have been working on the way a group of humanoids vocalizes. In the anatomy of vocalization, I have recently asked about and explored some variation in vocal cords. The hyoid bone typi...

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

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Q&A Why can't spaceships go underwater?

It is a somewhat common limitation of spaceships in some universes, that they cannot go underwater. They can land on the planet, take off into orbit, hyperdrive into the next star system, but they ...

22 answers  ·  posted 6y ago by Mindwin‭  ·  last activity 6y ago by Mindwin‭

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Q&A How to keep this artificial water planet from evaporating or freezing?

Piggybacking on this question: Could soft matter infused with nano or pico sized magnets be used to clump together so that we could create environments with it? ...So we have a planet that has low...

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

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Q&A Hallucinogen Dragon Venom?

The smallest type of dragon in my world is a bipedal dragon about the same size as a moderately sized bird, maybe about a falcon. In addition to its breath attack and high intelligence, this little...

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