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Q&A What would it look like if a portal opened to a dimension with drastically less energy?

Imagine the other dimension is much much colder. Very little light/heat/etc. Suppose the portal only allows energy transfer, so matter can't pass through. What would the consequences be? Would it...

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

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Q&A How many years before enough atoms of your body are replaced to survive the sudden disappearance of the original body's atoms?

A magician summons a person to the material world to be their servant. Their body is not made from true atoms per se, but is some kind of force projection. In most ways though, they act as a perso...

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

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Q&A How to calculate the average temperature of a planet with greenhouse gases?

I am creating a planet with an orange dwarf as its host star and which is at a certain distance from it in such a way that it receives 1 % of the light received by the Earth from the Sun. Obviously...

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

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Q&A What is my malfunctioning AI harvesting from humans?

The scenario described below is for a role-playing game. The setting is Earth-like but with a healthy dose of sci-fi. Even though the setting is sci-fi I would prefer answers be largely based in re...

29 answers  ·  posted 5y ago by Urith‭  ·  last activity 5y ago by Urith‭

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Q&A What is the best way to cause swarm intelligence to be destroyed?

In my story, there is a large group of humanoid clones that help the city function, doing mundane tasks such as cleaning and maintaining the city. Doing all of the minimum wage jobs and 95% of the...

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

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Q&A Plausibility of Ice Eaters in the Arctic

Could a creature plausibly exist with its diet consisting of consuming ice, possibly for hydration? I'm unaware if it needs a secondary diet for nutrition, but how would its metabolism feasibly w...

11 answers  ·  posted 5y ago by Maverick Alpha‭  ·  last activity 5y ago by Maverick Alpha‭

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Q&A Could a living creature produce silicon carbide?

Silicon carbide is a ceramic often used in vehicle and body armor, but could a living creature produce and use it the same way? Assume the creature was genetically engineered.

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

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Q&A If there were no space agencies, could a person go to space?

I'm writing a story and I was thinking about the ending in advance. I posted a question about how the population would be wiped out. I have developed from that and thought about the virus having no...

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

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Q&A What is more plausible, viruses in a host brain or a viral colony becoming conscious?

In my story I have a strain of virus capable of stealing parts of or changing its hosts DNA, so it could copy the abilities in nature for its next host of choice by taking the genes which control t...

4 answers  ·  posted 5y ago by Aizen-sama‭  ·  last activity 5y ago by Aizen-sama‭

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Q&A How can glass marbles naturally occur in a desert?

I had a dream that on my alien planet, there was a large desert that had naturally occurring glass marbles in the sand. My dream logic was that the sand was melted into glass and natural weathering...

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

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Q&A What is the bio-mechanical plausibility of a fox with venomous fangs?

For context, I've been working on a fantasy race for use in a science fiction novel, the gist of which is essentially a red fox that has had its genes manipulated by a supernatural force with the p...

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

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Q&A Plausibility of helium dominated atmospheres on super-Earths

I've been using this helpful diagram a lot for worldbuilding. Now I came to think about the fact that helium is more massive than hydrogen, thus a scenario where hydrogen escapes, but helium is ...

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

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Q&A Which Stars Would Best Suit For the Habitable Zone of The Nine Norse Earths?

In an alternate universe, the nine realms of Norse mythology--Midgard, Asgard, Vanaheimr, Jotunheimr, Alfheimr, Hel, Nidavellir, Niflheim and Museplheim--are actual, real-life "Earths", in the sens...

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

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Q&A Where to Put Self-Reliant, Rugged Individualists?

In fiction that tries to provide a wide diversity of cultural stances on the collectivism-individualism stances, there is often a trope that self-reliant, no-nonsense, rugged individualists (as a d...

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

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Q&A Plausibility of (large) continents on a world with hundreds of tectonic plates

Suppose an earth-like world with roughly 500 major tectonic plates. Question What is the plausibility of such a world to sustain (large) continents? Why? Further clarifications: speed of pla...

3 answers  ·  posted 5y ago by Arash Howaida‭  ·  last activity 5y ago by Arash Howaida‭

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Q&A Using Molten Metal as Mortar--Would it Work Today?

So I just got back from watching an episode of the Science Channel program Unearthed, a show focusing on archaeological discoveries. In the episode in question, the subject was on the Lighthouse o...

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

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Q&A What would the experience be like for a human transported to 4 dimensions?

Our universe has 3 global spatial dimensions - that much I know. I am almost sure, based on an incredibly shoddy knowledge of physics, that there couldn't possibly be a 4th spatial dimension that w...

5 answers  ·  posted 5y ago by Nico A‭  ·  last activity 5y ago by Nico A‭

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Q&A What configuration would provide the most protection for a male dragon's reproductive organs against mechanical and chemical attacks?

Dragons awesome (that's why sub-par writers and DMs use it as a substitute for an actually engaging story/setting) but they're still just animals, animals that reproduce. Besides it's painful to g...

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

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Q&A What could prevent players from leaving an island?

I am currently building a campaign for DnD. The main plot plays out on an island the heroes are stranded on after their ship goes off track and sinks. They discover that this island is ruled by m...

23 answers  ·  posted 5y ago by Nautha‭  ·  last activity 5y ago by Nautha‭

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Q&A Would this winged human/angel be able to fly?

I take no credit for the image below. All artwork and information belongs to Blue-Hearts on DeviantArt: (click on image for a higher resolution) I'm personally very impressed at her level of d...

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

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Q&A The Effect of Gas Diffusion on Life

Let's say world is completely flat (infinite flat world, think minecraft flatworlds) for the purposes of the question. The gasses of the world started out in a grid pattern, with each square being ...

2 answers  ·  posted 5y ago by Nepthys X‭  ·  last activity 5y ago by Nepthys X‭

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Q&A Parallel universe portals: an infinite hall of mirrors?

Parallel-Universe Portals A solid material has been discovered that, when shaped into a ring and activated (by lowering its temperature below some critical point, let's say), it forms a parallel u...

7 answers  ·  posted 5y ago by Gilad M‭  ·  last activity 5y ago by Gilad M‭

Question universe
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Q&A Alien Mammal-Like Ears

So I'm trying to design my alien life around the pressures they might face just like earth's wildlife, and most things I've made plausible life that is similar to ear but not giant dinosaur cats. T...

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

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Q&A What element could be used on a fictional metal-poor planet for biological oxygen exchange?

I'm working on a hard sf novel about humans being forced to survive on a metal-poor planet. They have to take dietary metal supplements at first but eventually a bio-engineer rigs the biochemical p...

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

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Q&A Human with super efficient metabolism

So I read recently this article as I was trying to design a sci fi alien race for my story and I found out that a human only has an efficiency of converting food to energy of about 25%. What would...

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

Question biology food