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13.1k posts
 
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Q&A How might a carnivorous species subsist on a cycle of cannibalism

Let's say a carnivorous species loses all available food sources, and they begin to eat one another to survive. Let us also say that prion diseases are not an issue for this particular predator. As...

17 answers  ·  posted 7y ago by Shanenopolis‭  ·  last activity 6y ago by Shanenopolis‭

Question biology xenobiology
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Q&A Does my Fast-as-Light travel method run afoul of causality or relativity?

I am writing a hard science fiction story and I want to avoid violating known physics, while still enabling some of the classic mainstays of science fiction under the auspice of sufficiently advanc...

8 answers  ·  posted 6y ago by TPK‭  ·  last activity 6y ago by TPK‭

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Q&A Are there physical laws making this kind of revival impossible?

AFAIK, inanimate bodies and life forms are in the end a large set of subatomic particles (and atoms, and molecules) and energy. Unless my basic knowledge of Physics fails me, you can return a parti...

6 answers  ·  posted 6y ago by Pablo‭  ·  last activity 6y ago by Pablo‭

Question physics death
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Q&A Creating a scientifically semi-valid super-soldier, part 3: Physical shock resistance

Part 1 here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton Part 2 here: Creating a scientifically semi-valid super-soldier, part 2: nervous system In most movies, comics an...

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

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Q&A How would an alien civilization realistically monitor earth?

If a Kardashev Type III alien civilization wanted to monitor the earth (and its inhabitants' progress) via a satellite/orbiting object, how would they realistically transmit data from this object? ...

6 answers  ·  posted 6y ago by Oli Fog‭  ·  last activity 6y ago by Oli Fog‭

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Q&A Solar radiation overflow

Assume that you are in an alien star system. Your ship is currently being hit by a phenomenon called solar overflow, which messes up your electronics and can kill you without good shielding. It is ...

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

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Q&A How to colonize this planet?

About 39 light years away is a lush, biodiverse planet, called Leena. It is the fourth planet from a yellow star. The planet is a prime target for human colonization, as probe bots have discovered ...

20 answers  ·  posted 6y ago by Canyon Runner‭  ·  last activity 6y ago by Canyon Runner‭

Question flora colonization
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Q&A How would lower gravity affect aging in humans?

Aruani is a planet that possesses a fifth of the gravity of the Earth. Humanity migrated to this planet 6,000 years ago and terraformed it to make its atmosphere suitable for human life. Would it a...

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

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Q&A How could a country broadcast digital data through tap water (instead of radio waves)?

Background: I'm toying with the idea of an alternate Earth that never developed wireless technologies. Radio transmitters, Wi-Fi, etc... were never invented, meaning that light-speed communication ...

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

Question chemistry
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Q&A Could black holes be a better source of energy than stars?

In my story, set in the far(ish) future, humanity discovers a way to extract energy from black holes (perhaps via the Penrose process?), which sparks conflict as various factions attempt to take co...

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

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Q&A Earthquake modeling on a fictitious extraterrestrial moon

Thanks in advance for any input you can provide! I have a moon called Vieneo http://www.risetvp.com/Vieneo which has some geological modelling of faults and epicenters over some range of time: ...

2 answers  ·  posted 6y ago by Jason Reskin‭  ·  last activity 5y ago by Jason Reskin‭

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Q&A Feasibility of organisms with translucent upper craniums

After reading this post about a sort of translucent biological visor I was inspired to incorporate a similar design. I'd like to create an organism with a translucent upper cranium, serving no purp...

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

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Q&A Human hybrids and prion diseases

How genetically different do my human-arthropod hybrid have to be to humans to not be at risk of prion diseases when eating humans? I don't want my monsters to eat a brain for a quick snack and the...

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

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Q&A Reality Check: What sort of jaws would a venomous and omnivorous creature have to carry a human in its mouth?

A book that I'm currently writing called Surge features an enemy faction called the Degenerates that are heavily inspired by the Scythians (Indo-Iranian horse nomads that ruled the Eurasian Steppe ...

1 answer  ·  posted 6y ago by Arbiter Elegante‭  ·  last activity 6y ago by Arbiter Elegante‭

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Q&A How would an aquatic, air-breathing species organise its spaceship interior?

It's easy to imagine how would a water-breathing aquatic race outfit its spaceship - take a normal spaceship, insulate it, fill it with oxygenated water, possibly add some enhanced turbines to pump...

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

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Q&A Creating a scientifically semi-valid super-soldier, part 2: nervous system

Part 1 here: Creating a scientifically semi-valid super-soldier, part 1: Skeleton This question is about a complete rebuild of the nervous system. The question as proposed here: Improving human re...

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

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Q&A How far would reflected light penetrate into the interior of a McKendree cylinder from windows at each end

A McKendree cylinder is a rotating space station that is 920 km (580 miles) in diameter, and 4600 km (2900 miles) in length. This version would orbit the sun at 1 AU (at the same distance as earth...

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

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Q&A What are the ley lines this nomadic people uses to follow the same path year after year?

In the world I'm building, there is a race of people whose main shtick is that they can detect the magnetic fields of their planet and use them to navigate. In one of their cultures, the people are...

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

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Q&A Could powered exoskeletons enable humans to fly?

I have seen people saying that humans can't fly even with wings because our arm muscles aren't strong enough. Given that one of the uses of powered exoskeletons is to increase strength, would th...

7 answers  ·  posted 6y ago by Ajnatorix Zersolar‭  ·  last activity 5y ago by Ajnatorix Zersolar‭

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Q&A Armor increasing strength

Many games have various side bonuses on their armors other than just defense. These bonuses can often be active things like having a ghost thrall to protect you when wearing a special armor or mor...

6 answers  ·  posted 6y ago by Ekaen‭  ·  last activity 6y ago by Ekaen‭

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Q&A What adaptations would an alien have to chew food in a humanoid manner without a tongue?

On Earth, most animals have tongues, albeit in many forms. This is due to the evolution from a common ancestor. Tongues are not necessary for communication, be it auditory or otherwise. However, th...

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

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Q&A Could a semi-permeable membrane, which releases CO2 but contains O2 and nitrogen, biologically exist?

I'm trying to create an alien which has external lungs. Air can be inhaled normally however, is it plausible that the material the lungs are made of is semi-permeable. Containing the nitrogen and o...

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

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Q&A What kind of gases in an atmosphere could accelerate oxidation processes?

Recently, looking for information for worldbuilding purposes of my story, I found a post about how in a more oxygen rich atmosphere, the oxidation processes would take place more quickly. Subseque...

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

Question atmosphere
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Q&A Long-range observation in space

Explorers are in a spacecraft located 9 AU from a planet. Is it possible to detect fairly small objects (i.e. space stations, artificial satellites, etc., both powered and unpowered) using some sor...

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

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Q&A Synthesis of Organic Life by a Machine

Given eggs and sperm, and the means to preserve them for centuries, could an artificially intelligent machine possibly produce its own "children", so to speak? Assume it has everything it and its ...

5 answers  ·  posted 6y ago by R. Greenlee‭  ·  last activity 6y ago by R. Greenlee‭