All Questions
12
questions
19
votes
3
answers
3k
views
Eating Titan's oceans
Imagine a Mark Wattney-like scenario, only on Titan and involving a decent-sized base being isolated instead of a single person. There is not, and never has been, the possibility of growing potatoes. ...
- 2,081
12
votes
5
answers
3k
views
How can I feed an entire population on corpses?
In the grim darkness of the far future, there is only war. The world has become a barren wasteland that is inhospitable to the the human race, which has been forced to take residence in hive cities. ...
- 38.5k
2
votes
1
answer
263
views
Chemoautotrophs and human edible food? [closed]
Autotrophs are lifeforms that consume simpler molecules than the large protein, carbohydrate and lipid molecules that heterotrophs like humans ingest, these large molecules are made by autotrophs and ...
- 369
2
votes
1
answer
139
views
What’s the longest amount of time that a can of soda could stay fresh? [closed]
In the fallout series, people are often seen drinking Nuka-Cola, a rip-off of Coke. The earliest fallout game is 80 years after the war, the latest was 210 years.
So how the hell could soda last that ...
- 841
2
votes
3
answers
522
views
Life without excretion?
Is it possible with some chemicals as intake for humans to completely convert the food/chemical to energy to survive?
This is similar to when we are talking about clean energy where water and some ...
- 1,911
56
votes
10
answers
8k
views
What could cause sugary rain?
In a world very similar to ours, rain has a high concentration of simple carbohydrates in it, enough to sustain life on the surface. After some rainfall, this sugary rainwater is left behind and some ...
- 12.2k
-4
votes
3
answers
1k
views
Can humans survive using only minerals as food? [closed]
In a world of no living organisms, space travel reaches the planet with the chemical composition of the earth but no living organisms are present and the space traveller has few types of equipment to ...
- 1,911
1
vote
6
answers
419
views
What food would be 3D printed to solve hunger?
In my world, humanity has made the ultimate invention: A machine that takes raw elements and converts them into anything one desires, like a universal 3D printer.
The only thing it needs is a supply ...
12
votes
15
answers
7k
views
How can I make medieval folks addicted to food?
Let’s say I have a time machine and I travel back to medieval Europe. I befriend a girl and she needs my help to save the business of her mother: a restaurant, inn, tavern, etc.
I travel back to the ...
- 4,544
4
votes
2
answers
372
views
Is it possible to synthesize a nutritional food source entirely from electricity to replace land based agriculture?
Lets say you have a geothermal or nuclear power plant and nearby you have system which converts that energy into nutrient porridge. This nutrient porridge must have everything the human needs to ...
- 61
96
votes
14
answers
27k
views
Lembas bread (2000 kCalories per bite)
In The Lord of the Rings, the elves invented an incredibly nutritious bread/biscuit; as Legolas clearly says, only a small bite is just enough to satisfy the needs of an adult man for 1 day.
An adult ...
- 3,940
6
votes
6
answers
472
views
Mechanisms behind different metabolisms for regular and synthetic food
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 ...
- 173