Posts tagged humans
It's well established that the human body does not do well in zero gravity. Symptoms such as fluid loss, muscle atrophy, bone mass loss are well known. Less well known problems extend to such mun...
Assuming only plausible advancements in science, a Martian colony is established before the end of the century. (Sooner if possible). What materials would be needed in regular shipments from Earth?...
Let's say that I want to colonize a planet which is basically like mars but has got an atmosphere which still has extremely low pressure but consists mainly of oxygen. The temperatures are more or ...
I'm trying to make a world that human sex ratio is 2:8 (male:female). Most of the females are homosexual, and male is not necessary for reproduction. I thought it was easy at first, just say that t...
This is the first question in a series on the physical limits of the human body. The intent of this series is to, illustrate the upper and lower limits of human biology for the purpose of buil...
I am sure most of you have seen Star Wars. In Episode IV: The Empire Strikes Back our heroes travel to Bespin, a gas planet with a habitable zone to refuel at the floating cloud city. Well of cou...
It's the year 2050, and you're the planner for a manned mission to Pluto - New New Horizons. The mission will take 5 years round trip, and there are 40 members of the crew. What's the most effici...
A top secret organization is planning to introduce a New World Order and replaces every human being (homo sapiens sapiens) with the evolved form of sub species of homo sapiens. Meaning we are sub s...
Concerning long term effects of zero gravity on humans living in space compared with those living on super earths with 1.5x to 2x G, how could the gravity differences cause reproductive failure amo...
Over the course of Homo-sapiens, we have become larger, because of diet & selection. Even in the last couple centuries. Today, we vary across geography and cultures, too, of course. Now it i...
By psychological effects of alcohol, I mean the effects from 0.060"“0.099 Blood Alcohol Content % by volume (according to this Wikipedia article), but not the physical effects, like alcohol poisoni...
In this world I'm building, a bunch of previously inactive genes in humans have started expressing, and changed newborns' metabolic system dramatically. As a result, a portion of population cannot...
Variations of this question have been asked and answered previously but I am looking for something specific. Situation: Earth's body (mantel and crust) rotate at different rates than it's core (I ...
If a human were cursed with the need to transform into a specific animal (i.e. a canine), would his DNA change after the transformation? I would appreciate help in answering this question. This i...
I am building a race of humans (or humanoid constructs) that have the ability to alter their DNA (or store a second set and use it selectively) as to gain superhuman (or meta-human) abilities. Is ...
A sizeable human population was separated from the rest of the Earth people for a long time, long enough for allopatric speciation to happen. They are no longer Homo sapiens and now have ZERO repro...
Got this idea from Antarctica in the Legend series by Marie Lu Imagine that we've become so technologically advanced that every person, ages 3 and up, has an implant in their head that tracks ever...
There are a couple of stories where humans gain chloroplasts. Here's a clip from one story: They are also infused with bacteriorhodopsin, allowing photosynthesis. It is now possible for a huma...
Imagine that we live in a setting where there are a trillion humans (see linked question). A bit crowded, I know. Further imagine that at least the entire energy output of the Sun was available to ...
This is about a fictional planet that has a solid land surface but on which the atmosphere is composed of some liquid containing hemoglobin, or some artificial blood substitute. I am not sure yet ...
Is it possible for humans to live on a world with the following conditions? Atmosphere: 50% nitrogen; 30% oxygen; 20% carbon dioxide. Climate: The rain in some areas is acidic. (Is there som...
Visiting the Worldbuilding site plays with my creativity and imagination. So I am going to describe the dream I had: I am member of a different (alien) culture, from a different star system. Also,...
Accept that we had a reason to go to Mars, managed to build a colony there, and what we found on Mars is valuable enough to ship back to Earth. There is now a self sustainable colony living under t...
Is it possible for humans to evolve to eat something like wood or stone or something similar? Any hard material you would find or any abundant resource. So is it possible that humans in the past ha...
Could a civilization exist on a planet/dwarf planet like Pluto? It is so cold and barren. Is it possible? What would they live off? They don't have to be humanoid.
I heard that some scientists placed chickens under 2.5g for 6 months, and they survived. A normal human would black out at 5g. A trained astronaut could take up to 8g before blacking out. 20g woul...
