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I was wondering about feasibility of small 'shell' world build around something very dense, like black hole or some 'artificial mini star' that could also be source of energy, and of course gave us...
I want to use a handwavium gravity field generator on my spaceships, but this has several problems. Generating gravitational fields of peculiar shapes is not a difficult thing to do in this settin...
I'm thinking primarily in terms of the macronutrients, carbohydrates and proteins. I know that fats are 9 calories per gram and both proteins and carbohydrates are 4 calories per gram, which makes...
So Vanadium is present in fossil fuel reserves, and in present in some organics on earth, I figure that if a planet was rich enough in Vanadium a species could ingest it, then the vanadium could be...
In my Pathfinder RPG campaign setting I have two continents separated by an isthmus. An artificial canyon carved through the isthmus from one ocean to another divides the continents. The canyon i...
Although (as far as I've seen, I haven't done in-depth research) the original/older version(s) of the succubus legend just have them as demons who seduce you, more modern interpretations seem to ma...
Start with a planet just like Earth as of today (whatever today means when you are reading this). For simplicity's sake, disregard mankind's continuous spewing of greenhouse gases into the atmosphe...
What I am imagining is some sort of gargantuan beast that encloses a star with its monstrous jaws and then feeds off the rays released by the sun to power itself. I am curious what kind of creatur...
I'm designing an intelligent alien species in which child rearing is a very labor instensive and lengthy process (their progeny take a little more than a decade and a half to mature), so much so th...
Horizontal gene transfer via retroviruses that change an organism's germ line DNA exist, even in humans, and account for a minority but not insignificant portion of the genomes of many, if not most...
There are many organisms that sometimes reproduce asexually and sometimes reproduce sexually (even snakes and sharks!). There are also a fair number of organism that reproduce sexually but have a ...
I am creating a planet which is similar to earth (but slightly smaller), with similar climates and resource distribution. It is inhabited by 3 races, one of which are humans, and the other relevant...
Firstly, I'm not looking for an organism that gives birth to two separate species (like a human that gave birth to a human baby and a puppy) as I'm fairly sure that is impossible (though feel free ...
Consider an earth-like world without any flying species. What could be the possible (I'm looking for a physics or chemistry/biology answer) cause of this? Set aside trivial solutions as "rando...
TL,DR: Kinetic weapons are great at taking down shields, but can't take out the hull. I need an explosive that works in a vacuum to take out the hull. Nukes are out, since they'll hit the atmosphe...
My question refers to a capital ship. Ideally, the ship wants to stay as low as possible. Does the mass of the ship affect its possible orbits? If so, what is the lowest orbit possible for this shi...
My race use a weapon which has the same dimensions and mass as a kinetic rod. The difference is that it's also a high explosive. It explodes after impact, causing the already weak structure to be b...
In a world similar to us, but in which an evil mastermind is trying to create an armour to force their country into submission. Our villain is trying to make it out of a ceramic composite. What wou...
I've been thinking about worlds like Keplar-62e, thought to be covered in deep oceans, and wondering about floating reefs. Could a bio-structure substantially similar to terrestrial coral hold eno...
As suggested in this article, the evolution of the adaptive immune system didn't actually give vertebrates a huge benefit, it just led to an escalation of the arms race between vertebrates and path...
I have a humanoid character with wings, made possible by a little fictional magic, but I'm trying to keep it as scientifically correct as I can. All right, so she has wings, but walking through bu...
I want the temperature of the earth's poles to be higher so that they have a temperate European climate with yearly temperatures averaging 15-20 degrees Celsius. What will the climate of the rest ...
Ok, Space Elevators have fallen out of the limelight, sorry for them, but the concept is intriguing just the same, so here it goes. One of the worst problem space elevators face is the fact that t...
I've been reading a few books lately, principally the Warhammer 40,000 descriptions of Earth and the Night's Dawn Trilogy, and it's got me wondering just how far down we could bury a planet under a...
I'm trying to build a setting in which humankind would have no other choice than to live underwater to survive. Suppose there was a nuclear war in which a huge part of the human population died, ...
