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I have a world that consists of hundreds of different caverns inside an earth-sized planet. Each of these many caverns consists of many different biomes, such as plains, Jungles,deserts,etc. Howev...
For my science fantasy story, I need a particular setting for my world. I need a planet (Earth or earth-like), habitable and with complex life forms like our planet. However, over time, this planet...
Premise In a world set 10^40 years from now, or in cosmological decade 60 (a cosmological decade is a long term measure of time such that each successive increment represents a ten-fold increase i...
We have escaped the galactic government, and now our greatest endeavour yet, life in space. How shall these gargantuan space entities move and travel through space? The whale or other in question...
We have escaped the galactic government, and now our greatest endeavour yet, life in space. How will these gargantuan space entities eat and survive in space? The whale or other in question is th...
In my Sci-Fi universe, I want humans to, initially, have two traits to their spaceship building: Really good drive systems, at least compared to other races. Complete and utter lack of any sci-fi...
Is it reasonably possible for a type of human to exist that rapidly tans in the presence of large amounts of sun/radiation and loses it again afterwards, in a matter of minutes? Also, how might suc...
Reading this answer I realized that for my purposes I don't really want a fully steampunk world. All I want is lack of cars and planes as we know them, and lack of oil, or inaccessible deposits of ...
Space bodies like planets, asteroids and comets are formed by the remaining materials of stars explosions. Therefore they are usually made up of several elements. There is the possibility that a p...
Belsaria is the City of Fountains. The capital of Nowheria, it's truly a civic marvel, due to the thousands of fountains that jet water into the air at every intersection and in the courtyards of a...
I am writing a book in which criminals get their hands on a polymer which resembles chewing gum , but alters their saliva. This allows them to burn holes into walls made from plastic used as buildi...
I'm in the point of my story when two main characters meet each other, ally and start a rebellion against gods. One of my main characters is a wolf-girl (anime tendencies bruh) however she'll one o...
I am creating a fictional universe where humanity's evolution followed a different path that it did in ours (evolution might not be the best word, but bear with me). Long ago, in said universe's e...
What would be able to explain a visor like device that can see the past or future? I'm trying to make it as little as clarketech as possible. Any ideas?
According to wiki, The speed of gravitational waves in the general theory of relativity is equal to the speed of light in a vacuum Not bad enough to send data (message or information) to ot...
This question relates to an attack on a biological space vessel. My vessel is a space station made from wood, with an oxygen-rich atmosphere inside it. It is under attack and the attackers have de...
In a world where people are not allowed to (or choose not to) make use of electron flow current, would it be possible to construct an electric generator using ionic conductors such as tubes with sa...
My question stems from What would a space fighter look like? After reading through @dsollen's question can a human fighter pilot fully grasp 3 dimensional frictionless movement in space? I started...
Appearance The ''vipers'' are semi aquatic humanoids species with webbed fingers on both hands and feet, they also have 2 fins on each leg and their legs are covered in scales from the feet up to ...
This world takes place in the remains of the Eastern United States, devastated by 3000 years of neglect and climate change. The Mississipi river is pretty much a gulf now, which has caused everythi...
There are several ways to directly convert acoustic/mechanic signals into optic signals (e.g. opening/closing a shutter, or the acousto-optic effect). Is there any way to do the reverse, without us...
I would like a realistic evolutionary path for non-hominid humanoids, but evolution is extremely complex and varied, so I will narrow the question to examining how evolution might occur in felines ...
So we humans get big into genetic modification and figure out how to make ourselves photosynthesize through our skin, and somehow it generates enough energy to be worth our while. Obviously we'd st...
The basic concept of this planet is that, the planet has a tilted axis (you probably guessed that already) which results in the South Pole constantly facing towards the sun. This would result in th...
I have built a Tchou-Tchou 'hyperloop' wagon that reaches 310Â km/h on a 500 meter test rail. One of my investor customers wants to try the Tchou-Tchou, but I am a bit concerned about his safety. T...
