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With all this talk of Alien Lifeforms over the past few weeks, I have been pondering a small question. May be a simple yes, no answer. May not. Can a species accidently uplift another species? I s...
I have a super luxury space hotel. It has artificial gravity in the living and shopping area and 0g in some parts of the recreational area. There is a 0g pool available for the guests. I want it ...
This is a skeleton of a titanosaur, not quite the longest of the dinosaurs, but most certainly the heaviest! As far as we have found, we'd found no species exceeding 75 tons. This post focuses ...
Say we took an adult racing horse from Earth to a planet identical to Earth, but with half its gravity. Exactly how fast would it be able to run? Would the low gravity have any significant effect o...
I'm writing a science fiction, although I'm not from a physics background. A part of my plot is: In a futuristic Earth threatened by huge power demand and climate change, a scientist creates a qua...
Litter size varies vastly even in just the world of mammals, from the single spawn of an elephant to the up to 30 children an opossum can have. Obvious, litter size will determine population, cultu...
So, on the Planet of the Aves, Tres' sapient crows are the dominant sapient species. Given that your average bird spends plenty of time on the wing, how intuitive would they find subsonic aerodyna...
Could something like, say, elephants losing their trunks or avian species losing/gaining the ability to fly happen in just a couple hundred thousand years or would it take millions?
I'm a newbie here and I'm slowly building a story based on Ancient Egyptian mythos that revolves around a primarily solar powered city in a vast desert. There will be magic and Gods involved, but I...
Ignoring the tails humans already have. Let's say it's the year 2016. Merpeople exist. They live in the ocean or rivers, breathe air, and have to surface occasionally. They also evolved from earli...
I am wondering what the world would be like because in this story I am making, it is in the future where the ozone layer is gone and big cities have big structures that generate an artificial barri...
I was originally going to claim my world has very low levels of sulfur, resulting in a lack of gunpowder and thus a lack of guns. But after realizing how cool things like fireworks and Hwacha are, ...
In my story, a group of people were stranded on an uninhabited 600 km2 sized island. They were forced to glide there due to fuel starvation of the airplane. Its only "domesticated" animal are feral...
In my fantasy world there's the race of trolls, vastly inspired by the ones one encounters in Baldur's Gate 2 (see here). Millennia ago, they've been driven underground by orcs and elves, as well ...
Imagine that, suddenly, a rather large cone shaped hole from the core to the crust appeared. All the land mass of the cone just vanished. Which could be the changes that this event would produce i...
Assumptions - atmospheric pressure is 3 atm, but partial pressure of oxygen is comparable to earth, the rest is mostly nitrogen. Planet is tidally locked and insignificantly heavier. (for simplicit...
Gunpowder, also known as black powder, is some nasty stuff. It's extremely corrosive, it produces large amounts of obstructive grit and fouling, and using it creates a cloud of obscuring smoke. So...
In a species I am designing, they have eyesight similar to a cats, their vision at a distance is excellent, but the closer you get, the blurrier the vision is. One solution I had for this was for t...
When calculating large values with computers one is using Floating points, when calculating distances this can be a problem. The floating point problem: Eg. In early Kerbal Space Program t...
I am a skilled metallurgist and engineer and, like most well-educated people, I'm terrified by the possibility of an impending apocalypse. Let's not worry too much about what form it takes. Nuclear...
In the award winning Studio Ghibli film, Arrietty, there exists a creature known simply as the Borrower. Borrowers are a small version of human, no taller than a few inches, yet are otherwise the s...
This is the map of our Permian from 300 to 252 million years ago: As you can see, (nearly) all of the continents had joined together to create one massive landmass called Pangaea. To the sharp ...
Okay so I have a sci-fi world masquerading as a fantasy world where numerous different genetically-engineered humanoids live on nine different ringworlds orbiting an artificial Earth-mass black hol...
I'm trying to construct a most realistic desert possible. I've made a continent with my little knowledge and may ask further questions about climate and similar stuff, but now I want to center on a...
In a lot of science-fiction stories, there are people who hibernate of sorts in cryosleep. Basically something like the person's body is stored in a container which is then chilled at really really...
