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13.1k posts
 
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Q&A Could life arise using iron pentacarbonyl as a solvant?

Iron planets are planets which lack a significant mantle. These planets are essentially lone planetary cores. Since water and iron are unstable together iron pentacarbonyl and other exotic metal-ba...

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

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Q&A How would oceans of supercritical CO2 on Venus-like exoplanets look like/behave?

Carbon dioxide turns supercritical above a pressure of 73 atm and 304.25 K (31.10 °C). The surface of Venus fullfils these conditions. The density of the air at the surface is 67 kg/m3, whi...

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

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Q&A Is there a way to trap a super-being like Dr Manhattan?

This linked video explains who and what Dr Manhattan is and what are his super-powers Dr. Manhattan's Superpowers EXPLAINED. Dr Manhattan character is from Watchmen Here some quotes from Wikiped...

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

Question super-powers
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Q&A What modification is needed so a creature can't fart, while it can still excrete?

As the title says, what modification is needed, so a creature cannot fart while still being able to excrete their waste? So creatures that can't excrete or doesn't have an anus like the Demodex i...

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

Question biology xenobiology
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Q&A Is it possible to map the firing of neurons in the human brain so as to stimulate artificial memories to the amnesiac person?

As the title says, Is it possible to map the firing of neurons in the human brain so as to stimulate artificial memories to the amnesiac person? This is based on this similar question; Is it possi...

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

Question brain memory
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Q&A What different biological aspects would facilitate an elite race of warrior aliens?

A bit of backstory: I'm attempting to create a militaristic alien race composed of elite warriors capable of conquering the galaxy. They posses a variety of "enhanced" abilities such as immense str...

5 answers  ·  posted 5y ago by Rhysing‭  ·  last activity 5y ago by Rhysing‭

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Q&A What would be the fate of a second satellite at the mid-point between the Earth and the Moon, with half the mass of the Moon?

If this hypothetical moon were to come to exist between the Earth and Moon, how long would it survive? And could it transition to the moon's orbit, as a subsatellite? To clairify, this scenario is...

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

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Q&A A perpetually foggy forest at the base of a mountain range

What type of climate would I have to have to face a perpetually foggy forest at the base of a mountain range?

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

Question geography
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Q&A Life-supporting climate for an organolithium planetary environment?

I'm looking to design one of my warring planets around organolithium chemistry with seas and precipitate primarily composed of a clear organolithium solvent liquid - possibly ammonia. I've searched...

1 answer  ·  posted 5y ago by Vogon Poet‭  ·  last activity 5y ago by Vogon Poet‭

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Q&A Could a land vertebrate re-evolve gills after moving back into the water?

I know there are examples of land vertebrates moving back into the oceans, such as in the case of whales, and marine reptiles, but in every case that I know of when a land vertebrate moves back int...

3 answers  ·  posted 5y ago by Anders Gustafson‭  ·  last activity 5y ago by Anders Gustafson‭

Question evolution
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Q&A My mysterious "ruins" wander around and change on their own, what'd be a rational way for them to do that?

Civilization is fairly young in my setting. Thus, the sheer number of ruined buildings and abandoned structures, found throughout the wilderness, seems strange. The ruins vary a lot: has-seen-bett...

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

Question engineering
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Q&A Maximum scale for "bumblebee" flight?

Bumblebees famously cannot fly under fixed wing aerodynamics--and they don't. Rather, they "row" the air, moving their wings back and forth and varying the pitch to push air down like a reciprocati...

1 answer  ·  posted 5y ago by Logan R. Kearsley‭  ·  last activity 5y ago by Logan R. Kearsley‭

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Q&A How Would Organic Material Erode If Petrified

So in my world, the main Antagonist has the ability to drain the life from things around her, turning them to stone in the process. That made me wonder how organic material would erode if it were p...

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

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Q&A Would cobalt make a moon blue?

Would abnormally high levels of cobalt on a moon cause it to appear blue to those on the planet it orbits?

2 answers  ·  posted 5y ago by Mock 10‭  ·  last activity 5y ago by Mock 10‭

Question moons unusual-color
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Q&A Is there any biological reason an extremophyllic organism could not make a diamond?

In theory, could any organism using protein folding or another biological process "assemble" the diamond allotrope of carbon, if it were at the correct pressure to do so? In other words, could some...

2 answers  ·  posted 5y ago by Vogon Poet‭  ·  last activity 5y ago by Vogon Poet‭

Question biology
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Q&A The Itsy-Bitsy Insect Has Made a Web. How Differently Would it Look From Spider Web?

In an alternate Earth, a mass extinction wiped out a percentage of the most successful phylum ever--Arthropoda. All that survived of the class Arachnida were the really small varieties--the ticks,...

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

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Q&A How much processing power would a real time Edited Reality headset need to render video in real time

Imagine a VR headset with built in camera & AI with object recognition & photo editing software. The camera records the image. The AI is trained to pick out 'undesirable' images, objects,...

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

Question technology
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Q&A Air Pressure in a Purely Underground Setting

I'm working on a completely flat, underground world, where "world" means "universe" rather than the equivalent of "planet". Here's what I have so far: The world is a flat, apparently infinite (in...

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

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Q&A Dr. Frankenbull's Problem: How To Tell Aurochs From Bison

The mad scientist community is...mad, to put it kiddie-appropriately. Their logic has the tendency to make 0% sense 100% of the time (provided, of course, that they ever bring it up.) So you can ...

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

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Q&A 'Nuke the sky' to make a rocket launch a tiny bit easier

My aliens want to build the heaviest chemical rocket possible: They never were much into space travel, since their planets' gravity is about 1.5 of ours. They made lots of bad experiences fighting ...

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

Question atmosphere rockets
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Q&A Can a human crew handle cyclic extended high relativistic speed operations?

This question hopes to make a space tug crew's life tolerable. A supply pipeline links two civilizations. Due to the long travel time between the ends, cargo is "thrown" at the other side in unman...

2 answers  ·  posted 5y ago by Vogon Poet‭  ·  last activity 5y ago by Vogon Poet‭

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Q&A Could you fly a Boeing 747 on Venus?

I have been making a future colonization scenario where people have vast colonies on Mars and cloud top bases on Venus. These things are unbelievably large. I've already thought of a way to travel ...

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

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Q&A How can human biology be built to allow consistent usage of 100% of the body's muscles without wear and tear?

The island of Themascryia is a nation of amazons, an all-female race that spend their lives training for battle. They are currently under siege by foreign invaders. This army comes from a powerful ...

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

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Q&A The location of a geostationary moon in the sky?

On a planet with a geostationary moon, how can I determine the position in the sky of the moon depending on the position on the planet surface? For example, Pluto's Charon. The moon wouldn't move ...

2 answers  ·  posted 5y ago by user5318865‭  ·  last activity 5y ago by user5318865‭

Question moons
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Q&A Is there a possible way that humans could experience rapid physical transformation into something more animalistic?

Physical transformation relies on evolution, which typically works n the scale of millions of years and in accordance with environmental needs. However, is there any plausible way maybe through th...

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