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13.1k posts
 
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Q&A How fast can a ship with rotating habitats be accelerated?

Alright so I'm not really a physics person by any stretch so forgive me if I butcher some physics jargon on this post. So I'm making this hard sci-fi interstellar ship with a rotating habitat that...

4 answers  ·  posted 5y ago by Galaxy‭  ·  last activity 5y ago by Galaxy‭

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Q&A Planet with Gridlike Seas

An Earth analog had been modified by an advanced species to have saltwater seas in an interconnected grid across the planet's surface. The planet has no true oceans and only the large grid network ...

3 answers  ·  posted 5y ago by Thalassan‭  ·  last activity 5y ago by Thalassan‭

Question weather planets ocean
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Q&A Are there semi plausible scenarios where Nuclear Winter could last a thousand years or trigger an ice age?

Trying to develop a fictional scenario with a 'believable' theory as to how a Nuclear War and resulting Nuclear Winter could turn into a millennial scale ice age. By 'believable', I mean that it p...

3 answers  ·  posted 5y ago by John D‭  ·  last activity 5y ago by John D‭

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Q&A "Parking" at Lagrange 4 or 5?

During a space cold war, a ship from the ideological enemy is not allowed remain in orbit while some of their investigators visit a crash site. The reason why is narrative "“ to separate the char...

3 answers  ·  posted 5y ago by wetcircuit‭  ·  last activity 5y ago by wetcircuit‭

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Q&A Deadly virus going extinct - "grey goo" a solution?

With the evolving global warming and thawing of permafrost, an ancient deadly virus begins to spread from Siberia across Eurasia, affecting domestic animals first and mutating quickly onto the rest...

2 answers  ·  posted 5y ago by System‭  ·  last activity 5y ago by System‭

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Q&A How can high-level awareness resulting in telepathic radar be made possible in the human mind?

The humans in this setting are telepaths who are able to communicate with each other through their minds. This form of telepathy transfers simple phrases, symbols, or emotions to the designated per...

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

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Q&A What's wrong (if anything) with the tectonic plates on my fictional planet?

I'm trying to find someone (s) with enough geology knowledge to help me figure out some of the specifics of the world I'm building. (Earth-like in age, distance from star, size, tilt) I'm doing my ...

1 answer  ·  posted 5y ago by Josh Foreman‭  ·  last activity 5y ago by Josh Foreman‭

Question geology tectonics
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Q&A Can human remains be turned into crude oil?

I have a potential sub-plot in a story that takes place in the not too distant future where most of the world's fossil fuels are exhausted or contaminated (war reasons more than environmental) and ...

1 answer  ·  posted 5y ago by SEK1977‭  ·  last activity 5y ago by SEK1977‭

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Q&A How can sex lead to a boost in performance for competitive sports?

Many believe that sex before a competition can have a negative impact on performance in combat, speed and strength sports in males. Athletes from strength and speed sports showed decreased perf...

4 answers  ·  posted 5y ago by Incognito‭  ·  last activity 5y ago by Incognito‭

Question biology sex humans
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Q&A What limitations can I put on wings for more tense/risky action scenes?

This is my first post on Stack Exchange, so I'm not sure if this follows the right format. Let me know what I can change to make this more helpful on the site. Anyways, let's get to the backstory o...

8 answers  ·  posted 5y ago by sinteredmetals‭  ·  last activity 5y ago by sinteredmetals‭

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Q&A Preserving the mammoth steppe

During much of the Late Pleistocene stage, the world's most widespread biome was the so-called "mammoth steppe" - a cold, dry grassland which spanned eastward all the way from Spain to Canada. It w...

3 answers  ·  posted 5y ago by SealBoi‭  ·  last activity 5y ago by SealBoi‭

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Q&A How to build the Cube Prison from Cabin in the Woods?

This question is about the Cube Prison as seen in the 2012 film The Cabin in the Woods. My question is not about the film or its lore, but how the cube prison can be constructed. Specifically, ...

1 answer  ·  posted 5y ago by cegfault‭  ·  last activity 5y ago by cegfault‭

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Q&A Would having more than two sexes decrease the number of individuals required to have a sustainable population from a genetic perspective?

On a world made up of many small islands, each island cannot support a very large population. Although sometimes individuals from one island make it across the ocean to another, this is usually a ...

5 answers  ·  posted 5y ago by Michael Stachowsky‭  ·  last activity 5y ago by Michael Stachowsky‭

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Q&A If a world had a massive single giant world tree could it stop an earthquake?

You know stuff like Yggdrasil tree but just a normal tree that is the biggest and tallest in the world. If the roots grow to surpass the continental and oceanic plate either it only cover some par...

4 answers  ·  posted 5y ago by Li Jun‭  ·  last activity 5y ago by Li Jun‭

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Q&A Storm-proofing Late-Victorian Aircraft

In my world, both lighter- and heavier-than-air craft exist and are rather useful devices. However, problems tend to occur when confronted with storms. Steering through a storm is not a problem in...

2 answers  ·  posted 5y ago by A Lambent Eye‭  ·  last activity 5y ago by A Lambent Eye‭

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Q&A How can my android "die" permanently?

For this sci-fi story/world hat I'm building, I'm introducing my androids which, while having intelligence closer to a human, are still just machines in nature. Theoretically one can destroy the bo...

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

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Q&A Order of Limb Pair Types for Amphibious Creature (Hexanewt)

I need to add a bit of descriptive detail on a species from a brief description. Essentially add a bit of finer detail to someone else's broad-strokes worldbuilding. An amphibious species' body lay...

2 answers  ·  posted 5y ago by vicky_molokh‭  ·  last activity 5y ago by vicky_molokh‭

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Q&A A weapon to rapidly change the Earth's atmosphere

I am seeking information and ideas from all you clever people. What I am trying to imagine is a chemical reaction that would change Earths atmosphere rapidly into something else which would be mo...

4 answers  ·  posted 5y ago by FireMonster‭  ·  last activity 5y ago by FireMonster‭

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Q&A What can plausibly explain many of my very long and low-tech bridges?

I have a very large developed (relatively rational) fantasy game world which mostly has medieval technology with some Renaissance technology, and some low-powered magic. In it, when I was much you...

17 answers  ·  posted 5y ago by Dronz‭  ·  last activity 5y ago by Dronz‭

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Q&A Electricity free spaceship

Assume there's a spaceship in earth orbit that its crew of 24 want to get to Mars, the crew are all humans and possess all of modern day knowledge and equipment, is it possible for said ship to mak...

10 answers  ·  posted 5y ago by cypher‭  ·  last activity 5y ago by cypher‭

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Q&A Non-aqueous eyes?

I am trying to create an organism that can survive in space for short periods, but I realized that I can't have its eyes be similar to those of most animals and humans because they would boil in sp...

10 answers  ·  posted 5y ago by Efialtes‭  ·  last activity 5y ago by Efialtes‭

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Q&A Moons in Binary Orbit

Writing a werewolf story, and decided for a bit of flair, so I wanted two moons in orbit. Did a bit of digging, and I found out that to do that, I'd need to either have them in separate orbit (no t...

1 answer  ·  posted 5y ago by Halfthawed‭  ·  last activity 5y ago by Halfthawed‭

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Q&A How much blood and/or platelets can a human give to their vampire overlord each day and still be healthy?

This is based on the idea of a society where vampires are known and subsist off of 'willingly' given human blood. An average adult human needs approximately 2000 calories a day to maintain their we...

2 answers  ·  posted 5y ago by Teanna Schmaeh‭  ·  last activity 5y ago by Teanna Schmaeh‭

Question biology vampires
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Q&A How to produce milk that's similar to blood?

How could a mammal produce milk which resembles blood? The blood milk should keep as many properties of milk as possible, curding for example, while resembling blood as much as possible. The mamm...

3 answers  ·  posted 5y ago by Halhex‭  ·  last activity 5y ago by Halhex‭

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Q&A A planet of ice and fire

I had an idea for a planet which has very hot days, roughly 40 degrees C on average, and very cold nights, average -5 degrees. These figures are subject to change. Of course, there are places which...

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