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13.1k posts
 
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Q&A How can powerful telekinesis avoid violating Newton's 3rd Law?

Characters with powerful telekinesis are portrayed as being able to exert a superhuman force using only their minds. For example, they can throw a car. Based on what I remember from high school ph...

11 answers  ·  posted 5y ago by Cheezey‭  ·  last activity 5y ago by Cheezey‭

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Q&A What would prevent chimeras from reproducing with each other?

There exists a polymerization spell that allows distinct animals to combine with each other, creating an entirely new creature. The beasts in question are held in transumutation circles linked by l...

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

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Q&A World underwater: technical viability

I want to put a story in place where a country lived underwater, and I am wondering of its viability. Here is the world description: It is a square of 100 km*100 km on the ocean with the weather ...

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

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Q&A Logical justification to wear black leather in the Post-Apot

So, let's say we have a character like this: Living in a place like this: In many post-apocalyptic media, leather jackets and blue jeans are the main form of attire for characters, even ones ...

10 answers  ·  posted 5y ago by DT Cooper‭  ·  last activity 5y ago by DT Cooper‭

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Q&A Vertical cyclones in a rotating space habitat

A common, matter-efficient, science-fiction habitat is a hollow cylinder or ring in space that is spun to simulate the pull of gravity on its interior surface. While for most purposes this artifici...

4 answers  ·  posted 5y ago by Mike Nichols‭  ·  last activity 5y ago by Mike Nichols‭

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Q&A How long would this eclipse last?

For a moon orbiting a gas giant which is in turn orbiting a star, I want to know how long the eclipse would last for an observer standing on the moon when the planet passes between the moon and the...

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

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Q&A How could a foam habitat support animal life?

Knowing foam is formed by trapping pockets of gas in a liquid or solid, what could a foam able to support life on an earth-like planet be made of? This foam ought to be stable enough and large eno...

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

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Q&A Smallest possible Victorian cogwheel size

In my late-Victorian-based world, mechanical contraptions are incredibly advanced due to the early discovery and quick popularisation of mechanical computation. The science of writing instructions...

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

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Q&A Could moose/elk survive in the Amazon forest?

In my story, there is a civilization living in the Amazon rainforest. They need some time of mount that is adapted to the forest. I don't think horses can survive by themselves in there, so I was t...

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

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Q&A The handwavium drive is broken! Is there any hope?

I was recently looking at this question, which seems to argue that FTL travel within the existing laws of physics can risk resulting in the destruction of half the universe. (Specifically, bad thin...

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

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Q&A Can you replicate a being's DNA just from observing it?

In the movie Captain Marvel, the main antagonists (at least for half the movie), the shape-shifting Skrulls, can change their appearance to perfectly match any humanoid creature, down to DNA. Scie...

2 answers  ·  posted 5y ago by Greenie E. - Reinstate Monica‭  ·  last activity 5y ago by Greenie E. - Reinstate Monica‭

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Q&A Plants accidentally exposed to vacuum of space - Will the settlers save them on time?

A newly-built base on the moon has the first two compartments of a pressurized greenhouse farm. An airlock system automatically seals one compartment off the others when pressure sensors indicate a...

3 answers  ·  posted 5y ago by Christmas Snow‭  ·  last activity 5y ago by Christmas Snow‭

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Q&A How strong can zombies really be?

Assume that average Joe dies in a zombie outbreak and is revived as a zombie pretty much immediately. How strong could that zombie be, assuming that: Zombification is done by "taking over" the br...

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

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Q&A Air bladders in bat-like skin wings for better lift?

Answers to this question note that human (and by extension mammal) wings would use naked skin instead of feathers, as we see on bats. However, with feathers, birds can have wings with shaped more l...

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

Question biology flight light
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Q&A Is muscle plasticity the same thing as when muscles regenerate from wear and tear?

Information I am writing a fantasy sci-fi, that is almost the same as our reality, the only difference being humans in this world are capable of using drugs (serums in their world) to improve thei...

1 answer  ·  posted 5y ago by Erick Silveira‭  ·  last activity 5y ago by Erick Silveira‭

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Q&A If a planet has 3 moons, is it possible to have triple Full/New Moons at once?

In the story I created, the Kingdom of Oneirou has 3 Moons--Artemis, Rahu, and Zorya--all of which have their own independent lunar cycles. However, it's officially stated as early as Chapter 2 o...

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

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Q&A Farming on the moon

Let us assume that I built a dome on the moon's surface. That dome is pressurized and has nuclear-powered lights to deal with the long lunar night (or is in one of the poles). I also have water, ei...

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

Question space moons farming
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Q&A Pre-plastic human skin alternative

In my pre-plastic world there is a killer who removes unblemished skin from their victims and replaces it with a non-human 'skin', so that one can't tell the replaced skin from the remaining human ...

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

Question biology materials
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Q&A Rivers without rain

On Earth, rivers are possible because rain and snow deposit water in high places. That water then forms rivers when flowing to lower places. Would it be possible to have the phenomena of rivers fl...

12 answers  ·  posted 5y ago by Renan‭  ·  last activity 5y ago by Renan‭

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Q&A How to effectively convince a populace living in a dome, that they're experiencing a spaceship landing?

I have a population living in a dome, and they have been for generations, totally sealed off from the outside world. What type of engineering would need to be in place to effectively convince the ...

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

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Q&A Implications of cigar-shaped bodies having rings?

In my Conworld's system, There is a porous asteroid large enough to be a dwarf planet (but it's mass is too small to pull it into a spherical shape) that has rings. How they got there, nobody knows...

3 answers  ·  posted 5y ago by Greenie E. - Reinstate Monica‭  ·  last activity 5y ago by Greenie E. - Reinstate Monica‭

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Q&A Can the human body hypothetically be magnetized/magnetically aligned?

I was thinking about how an MRI uses a strong magnetic field to align the spins of hydrogen atoms in the body. What I was wondering about was if the human body experienced a magnetic field much st...

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

Question biology magnetism
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Q&A Could a medium sized mammal in the order carnivora evolve to be bipedal?

In the movie Guardians of the Galaxy (and a few others), we meet a bipedal raccoon known as Rocket (who I am aware did not evolve to be bipedal, but I am using him as an example). I honestly love t...

8 answers  ·  posted 5y ago by John Lewis‭  ·  last activity 5y ago by John Lewis‭

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Q&A Is this a realistic set of world maps?

I want to start by thanking everybody in this community as your posts have been instrumental in helping me to build my world. All I am asking for is a final review of the maps that I have created t...

4 answers  ·  posted 5y ago by Jackom5‭  ·  last activity 5y ago by Jackom5‭

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Q&A What would increasing the gravity of a moon do to its planet?

If I terraformed a moon to have enough artificial gravity/atmosphere to support life, would they end up just crashing into each other? Is there a way to not have this happen, e.g., increasing dista...

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