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In my fictional planet, forests grow not on soil, but on vast spongy mats of fungi. Traditional Earth-like feet would struggle to get grip on the squishy ground, so most megafauna taxa have feet li...
Exploring the idea of "living" matter, (possibly non-carbon based if necessary), decomposing by bacteria (or similar) into sugar. In our world, sugars are held quite valuable by living systems, so...
I want to have an Earth-sized planet (with similar gravity) with an extremely low-density atmosphere (comparable to Mars) at most of its surface. Complex life, including an information-age civiliza...
The Rygyphae are a species that lives in the geothermal pockets, areas heated by volcanic activity. The rest of the planet is nothing but frozen ice and rock, but these pockets are lush jungles ful...
There have been countless online articles that go into painstaking detail about the implausibility of Godzilla existing in real life. But, let's just assume that a creature like Godzilla naturally ...
The Black Sea is a brackish body of water, that used to be separate from the Mediterranean. Further back, it was likely part of the Mediterranean before the last ice age. How long would it, or for ...
In Charles L Harness's 'The Paradox Men', a spaceship crashes on earth several years before it launches, having circumnavigated the universe faster than the speed of light. It is a good read, but ...
I'm aware that 'tatooine' worlds don't make good habits for planets, normally. From what I've read, either a planet has to orbit one star really closely, or orbit both stars from a really long dist...
I remember reading somewhere that some intellectuals from the medieval period thought the equator would be uninhabitable because it would be too hot. That made me ponder about a worldbuilding idea ...
Say a computer running an AI exists on a planet with no biological life. Say it has access to a rather extensive preexisting manufacturing plant and can control a fleet of machines capable of perfo...
Here's the plan for the proposed system of FTL communication. A huge pole made of the strongest solid in existence (or whatever solid would work best for this scenario, if no solid exists that wo...
Space is filled with all kinds of things that are unkind to cloth, such as dust and radiation, and they are the reason why sticking a nylon national flag on the moon isn't permanent. In my world I...
In the future, space travel is common, so common, in fact, that commercial transport is available to most people, like air travel is to us. As a passenger on a vessel of Galactic Spacelines, half ...
Consider a near-future situation where humans have begun to explore the solar system, most groups are still working to start a profitable mining operation and only a few ships have gone beyond Jupi...
Many mythological humans vary in depictions. Let's use Trolls from Scandinavia as an example. Some are said to be giants compared to humans (I'd imagine twice the height), and some, like Danish Tro...
The ships would be permanently extra planetary and manned by 4-5 crew. All life support water, food, oxygen and propulsion being produced by bacterial cultures (not necessarily the same). With all...
This is part of a series of questions about biological hydraulics, the fist one being here. My tetrapods have hydraulics in the thighs of their hind legs. To push or pull fluid from closed chambe...
How difficult would it be for a human to survive on a planet with an atmosphere 2-5 times as thick as Earth's but with gravity like Venus? Would such an atmosphere be survivable? If yes, then how ...
Okay so I am making these arthropod looking humanoid mammalian species, so think of a human with armadillo armor and jointed sloth arms. And I have heard that the pancreas produces Chitin so my que...
My question is simple: In theory, would an industrial revolution driven exclusively by alcohol fueled internal and external combustion engines in the early 1800s be practical? What effect would th...
Background As a parody of the super soldier questions and as an efficient way of organizing these questions I will now start this series of questions about Pseudo-Arthropod Primates. Questions fr...
In the year 2340 on the planet Ionia, a small colony of about 20,000 people was founded. They were camped out near a small lake between two canyons. The colonist all came from advanced planets like...
Could a cow produce bottled milk? The answer is, of course, no; there is no way a cow could do that; obviously. Perhaps I should be more clear on what I'm asking. Is there any way a mammalian cr...
In my world, people have powers based on the four fundamental forces. One of my characters can generate spontaneous gravity to crush his opponents. He's also resistant to his own power (so I ignor...
Is it possible to have a structurally self-supporting hollow Earth where the weight of the shell is balanced against the atmospheric pressure inside? It must be human habitable (gravity is nice b...
