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36

Diesel is your freind here. The diesel engine was originally designed to run on peanut oil. In fact there are conversion kits out there that can modify various diesel engines to run on used vegetable oil. All you have to do is filter the crud out. Granted, it made your car smell like a McDonalds as you drove around, and your friends could smell your car ...


21

Electric cars and solar power battery charging. The tech already exist and there's a lot of panels and batteries around.


11

What about good old steam power? You can fuel it with everything that burn. Collapse of society probably lead to abundance of forests around, so you could ride almost indefinitely. Bonus points for finding some old quarry, there should be lot of good quality fuel, aka coal, that wouldn't be that hard to mine. EDIT: If this post apocalyptic world is ...


8

Contrary to a widely held belief, gasoline does NOT go irreversibly bad with time. In a properly closed container, gasoline will not evaporate, or oxidize, or degrade the container itself for decades and probably centuries. The only issue with modern gasoline is that it contains a little water and thereby has a "shelf life" of several months. This, however,...


8

You can run a car on alcohol. High-proof alcohol makes a pretty good car fuel. Distilling alcohol is pretty easy in a post-apocalyptic world, because both the equipment and the ingredients will be easy to come by (at least compared to most other resources in a post-apocalyptic world). People can build stills from metal pipes and boilers which can be looted ...


6

CRISPR isn't perfect Alright, let's get into the science behind CRISPR gene altering and why it can fail horribly. CRISPR is pretty awesome, it's a fairly accurate gene splicing technique which we borrowed from bacteria which lets us cuts out the parts of DNA we don't want. It's pretty accurate, given that we can give it direct parts of the DNA to cut. ...


6

If you are looking for quotes about society and how people fit into it in general, Confucius is a philosopher from Ancient China that really fits your bill. He also loves to define the perfect 'gentleman', albeit in an ancient style. Some quotes below: Manners maketh man: Without feelings of respect, what is there to distinguish men from beasts? For ...


5

Frame Shift: It's not a post apocalyptic world, but a post-war country, that happens to still have some reserves left. The people fighting in bizarro vehicles are those who don't want to or cannot find refuge elsewhere. The rest of the world could step in to pacify the country, all it would take would be the political will to station a million or a half of ...


4

Different offers Making a perfect human is quite difficult, needs lots of quality control, paperwork, etc. and therefore it's expensive. However, you can avail of the cheaper option. But this has none of the quality assurance that the "Platinum package" has, and therefore carries a much greater risk of deformities. This way you don't have to worry about "...


3

Assuming it was a slow breakdown of society rather than a fast one, there's lots of options. The most thematically appropriate feeling one is wood gas, its cheap, can be retrofitted into existing engines, and gives you that lovely arrangements of pipes and other grubbins a proper post apocalyptic vehicle needs. And if it burns badly, it will run your car. ...


3

I'd go with the traditional option: bioweapon (natural or man-made). It would have following properties: no symptoms until activation (so low probability of detection and no panic) highly virulent even before activation (so you have most of the world population affected) activates by a singular world-wide event (e.g. massive solar flare) turns most of ...


3

I can think of a couple options: Gray Goo An unstoppable swarm of nanites, or maybe even larger (e.g. insect-sized) creatures that destroy all non-bio-associated metal, would probably do the trick. Ancient stone buildings (and wood buildings with all wood joining) will mostly be unaffected, but many modern buildings will collapse, and the economic ...


2

A nearby supernova might well meet your requirements. Such an event occurring within 50-100 light years of Earth might well have adverse effects on Earth. If the distance of the supernova were just 30 light years the effects would likely be devastating. In fact the close the event the worse the effect, so you can dial up whatever level of destruction you ...


2

Yes, they can. It will look exactly like this: www.instagram.com/dietegen The energy and food problem of nuclear winter will be solved with biodiesel production in the crematoriums. The weakness of infrastructures is solved by small armed groups. Modern means of communication can be maintained through sponsorship. A crypto currency is the only means of ...


2

Several posters have mentioned wood gas, but in the United States, FEMA actually produced a guide for building a very simplified post apocalyptic wood gas generator: https://www.build-a-gasifier.com/fema-gasifier-plans/ The purpose of the report was to develop detailed, illustrated instructions for the fabrication, installation, and operation of a biomass ...


2

Methane ok ok I know the methane idea is not new for a post apocalyptic setup as Mad Max Beyond Thunderdome was already tapping the methane idea... Except: In Mad Max, the methane crudely refined from pig faeces, is only used to power the electric generator of the city (Bartertown). I propose to get a lot more out of this easy to collect/produce gas. You ...


2

It might get really loud, but otherwise nothing is going to be different than in open spaces. Depending on how close the character is to the zombie, he/she could get a contact shot. If you are thinking about ricocheting bullets of the wall, it works best, if the target is close to the ground/wall, and the character manages to hit the surface (must be hard) ...


2

“All right," said Susan. "I'm not stupid. You're saying humans need... fantasies to make life bearable." REALLY? AS IF IT WAS SOME KIND OF PINK PILL? NO. HUMANS NEED FANTASY TO BE HUMAN. TO BE THE PLACE WHERE THE FALLING ANGEL MEETS THE RISING APE. "Tooth fairies? Hogfathers? Little—" YES. AS PRACTICE. YOU HAVE TO START OUT LEARNING TO BELIEVE ...


1

There was a Lord Moulton, an English judge, who spoke or wrote about the realm of manners and why it was so important to a society. I don't know the original source, but he has been quoted several times by commentator Mark Steyn, for example: Moulton divided society into three sectors, of which he considered the most important to be the "middle land" ...


1

Benjamin Disraeli was an influential Conservative Prime Minister in the UK during the Victorian era. He has a number of good quotes about government, but also about civility and society, one of which: "It is knowledge that influences and equalises the social condition of man; that gives to all, however different their political position, passions ...


1

There is more to the sterility disease than just sterility. Where does this disease come from? How does it work? Maybe people in your world still do not really understand (a la Children of Men). The CRISPR thing was a workaround. The sterility disease does not roll over that easy. Sterility is the main thing and if a fetus dies in utero that is the ...


1

The noise of the gunshot will be contained inside the area of the stairwell, and thus be much louder than normal for the shooter. When you consider that hearing protection is required even on open air ranges for firearms, this should give you an idea of how loud the sound will be for the character doing the shooting. If the stairwell is dark, the muzzle ...


1

The other answers here are excellent. I just wish to add one point. "Even in the extremely unlikely event that some of the oil wells and oil refinery plants are still operational" That entirely depends on the setting. Say zombies. Well. Everything is still there. Now a nuclear apocalypse. Sure but how big? Did every single road and refinery got hit? Did ...


1

In my mind the hardest criteria to meet in what you posted is wrecking all the buildings. It's actually a lot easier to kill off most or all of the human population and leave them standing. The thing about the human population is that it's maintained through a really terrifyingly fragile infrastructure, and the more developed and urbanized the population ...


1

Some kind of super-hurricane would do the job. The wind plus flooding would wipe out most people, animals, plants and buildings. (Not sea life though, if that matters.) Only those at high elevations would survive, and maybe some by pure luck. You could create such a hurricane by heating ocean water which feeds hurricanes. You would probably want to have a "...


1

It would not, in general, be realistic, because there are plenty of horses in New Orleans and the surrounding areas today. Importing them would only make sense in two cases: 1) Something in the apocalypse caused the local horses to die out or become sterile. Perhaps due to a disease like malaria, whose vector (a mosquito) can't survive cold northern ...


1

If people do need something, they move heaven and earth for it. So people, somehow, using horses for transportation is fine. However the real question is does it make sense? A post apocalyptic setting would mean a couple of things. For starter cities are a lot smaller with a situation similar to medieval, particularly medieval, cities. As people can't ...


1

Early aircraft were build out of wood, canvas and wire, and this construction extended to flying boats as well. Some flying boats simply used pontoons strapped to the airplane where landing gear went, while more advanced ones used hydrodynamic hulls. Felixstowe F2. 1917 So even using WWI era technology, you still can build capable flying boats. The larger ...


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