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Q&A

Posts tagged apocalypse

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Q&A Would a sun-blocking asteriod field be created if something big was to smash into the moon?

I'm wondering if it is plausible that a large asteroid (interstellar in origin? Or, perhaps launched from the Kuiper Belt by something big with a lot of gravity?) would be able to smash into Luna a...

3 answers  ·  posted 6y ago by OnePie‭  ·  last activity 6y ago by OnePie‭

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Q&A What could post-apocalypse humans do about dangerous, genetically augmented dogs?

So, out in Colorado, in the city of Den (population 1600), there is a huge problem. Before the war, a geneticist lab was trying to create police dogs that were stronger and superior to normal dogs....

8 answers  ·  posted 6y ago by DT Cooper‭  ·  last activity 6y ago by DT Cooper‭

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Q&A What would kill all flora on Earth and what would happen with the atmosphere

I need an Earth where the atmosphere has become unbreathable for humans and animals because all plants have died. But everything else should stay pretty much the same. So here are my questions: ...

7 answers  ·  posted 7y ago by yado‭  ·  last activity 6y ago by yado‭

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Q&A A ravine ~15 miles (~ 24 km) deep on average opens up in the Himalayas. Do we survive?

A ravine the size of the Mediterranean in area and ~15 miles (~ 24 km) deep on average opens up over the course of a few days in the Himalayas. A size comparison of the Mediterranean Sea to the U...

3 answers  ·  posted 6y ago by MageGuy‭  ·  last activity 6y ago by MageGuy‭

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Q&A What useful information could a post-post apocalyptic world glean from a 4chan-like resource?

My post-post apocalyptic society (200+ years after the fall) is extremely technologically stratified, with the haves hoarding near-future technology and the have-nots making do with pre-industrial ...

1 answer  ·  posted 6y ago by Carduus‭  ·  last activity 6y ago by Carduus‭

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Q&A Everything alive in the world dies this instant. Without bacteria to decompose anything, what happens to the remains? What does this look like?

So when I say everything, I mean everything. Humans, animals, plants, fungi, bacteria, all dead. If the bacteria and other detritovores and decomposers can't decompose anything since they themselve...

11 answers  ·  posted 6y ago by Sydney Sleeper‭  ·  last activity 6y ago by Sydney Sleeper‭

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Q&A How long would it take for an array of introduced alien fauna to form functional ecosystems on a near-future "Dead Earth"?

Imagine that, in the near future, pollution, overpopulation and war leads to a massive extinction where almost all chordates, some invertebrates and many plants are wiped out. Small, resilient plan...

4 answers  ·  posted 6y ago by SealBoi‭  ·  last activity 6y ago by SealBoi‭

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Rigorous Science The last ride of The Magic Schoolbus: Termination of the ignorant

It's been 21 years Ms. Frizzle has been doing her best to educate the masses. Even with all the knowledge available provided on the internet, not only do people not take advantage, they choose to ...

1 answer  ·  posted 8y ago by bowlturner‭  ·  last activity 6y ago by bowlturner‭

Question apocalypse
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Q&A Effects of a supermassive ship colliding with a planet

The basis of my story revolves around a single survivor escaping a massive colony ship gone critical above the skies of an alien world. After his escape via escape pod, the ship crashes halfway acr...

3 answers  ·  posted 6y ago by Don'tQuestionTheMuse‭  ·  last activity 6y ago by Don'tQuestionTheMuse‭

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Q&A Amount of Farmland Needed to Produce Biodiesel

Consider a post-Apocalyptic society of collective farmers that has access to a waning supply of modern farm supplies, a small, independent power grid, and a enough knowledge to keep themselves fed ...

2 answers  ·  posted 6y ago by Geoffrey Carlton‭  ·  last activity 6y ago by Geoffrey Carlton‭

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Q&A How would a big cat evolve to climb on and jump between ruined modern buildings?

So, in a post-apocalyptic setting, when humans have gone extinct and their cities fell into ruin, I was wondering what animals might evolve to conquer the ruins of our cities. Notice: I know that ...

2 answers  ·  posted 6y ago by SealBoi‭  ·  last activity 6y ago by SealBoi‭

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Q&A If the world were blown to pieces, what would remain?

My question involves the earth being blown up using theoretical dark energy. In this scenario, the crust and mantle are destroyed by precisely placed weapons so that all that remains is the core. W...

4 answers  ·  posted 6y ago by Rocky Norton ‭  ·  last activity 6y ago by Rocky Norton ‭

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Q&A What would happen if magnets stopped working?

I asked a similar question earlier: What would happen if electricity stopped working?. But I was also thinking about what would happen if magnets stopped working. This question is very related to w...

10 answers  ·  posted 8y ago by AMACB‭  ·  last activity 6y ago by AMACB‭

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Q&A Generating and storing power in a post-apocalyptic world

Say that an apocalyptic even takes place, a genetic disease wiping out most of humanity in a matter of years. So, there are no bombs, nuclear winter, or any sort of event that messes up the environ...

7 answers  ·  posted 6y ago by Bora‭  ·  last activity 6y ago by Bora‭

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Q&A Scavenging metal resources in post-apocalypse after 100 years

This is another question for a setting I mentioned in previous questions (currency, ammo). The setting is: It's happening in post-apocalyptic SE Europe (Balkans specifically), about 60-80 years fr...

1 answer  ·  posted 6y ago by Bora‭  ·  last activity 6y ago by Bora‭

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Q&A How would lack of sunlight affect a human population?

Other than photosynthesis being an issue, if the Earth's surface became inhospitable and humans were forced to live underground, what biological changes would they be expected to go through to adap...

7 answers  ·  posted 9y ago by James Hunt‭  ·  last activity 6y ago by James Hunt‭

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Q&A Industrial Prerequisites for Mechanized Warfare (Post-Apocalypse Edition)

So the Human World has fallen apart: the grid is down, governments have imploded, the economy is in shambles, people have died in the billions, global warming has made severe weather (much more) co...

7 answers  ·  posted 6y ago by Geoffrey Carlton‭  ·  last activity 6y ago by Geoffrey Carlton‭

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Q&A Post-apocalyptic weapons industry

The situation is the usual, we have lots of junk metal lying around in cities, great but not impossible difficulties with logistics (meaning that a few railroads are in operation at immense cost, b...

2 answers  ·  posted 6y ago by VTu‭  ·  last activity 6y ago by VTu‭

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Q&A What could humans do to render the earth uninhabitable?

If a hostile group wanted to render Earth or an Earth-like planet completely unfit for human life, what could they do to go about achieving that end? By uninhabitable, I mean a planet on which hum...

16 answers  ·  posted 9y ago by ckersch‭  ·  last activity 6y ago by ckersch‭

Question apocalypse
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Q&A The land grows evil and corrupted ... but why?

BACKGROUND A corruption has seized hold of the land, turning great swathes of it into a poisonous waste that humans may only enter at their peril. Perhaps all who enter the waste grow sick or go m...

25 answers  ·  posted 6y ago by Random‭  ·  last activity 6y ago by Random‭

Question apocalypse
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Rigorous Science What if a traversable wormhole hits the earth?

So, I the question of what if a black hole hits the earth has been asked to death by various people, but what if the somewhat tamer wormhole hits the Earth? In particular, we'll say that one mouth...

2 answers  ·  posted 6y ago by PyRulez‭  ·  last activity 6y ago by PyRulez‭

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Q&A What would life be like on the remnants of a shattered planet?

The year is 2089. The political shenanigans of the day have gotten more out of hand than usual and violent zealots have detonated the Earth's largest deposit of plotium devicide, an extremely versa...

2 answers  ·  posted 8y ago by ApproachingDarknessFish‭  ·  last activity 6y ago by ApproachingDarknessFish‭

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Q&A What could be an event which would wipe out most life on Earth and cause massive changes to Earth's ecology, but which humans can survive in bunkers?

So as the title describes, I need an apocalyptic event which is survivable by cryogenically preserved humans in hermetically sealed bunkers underground (or somewhere else). This event should wipe o...

4 answers  ·  posted 6y ago by Leo‭  ·  last activity 6y ago by Leo‭

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Q&A Climate Change after a Sudden Drop in Emissions

Suppose we have a world that saw a sudden collapse of civilization, not so violent that humans are suddenly struggling to survive but severe enough to cause humans to revert to a mix of city-state,...

3 answers  ·  posted 6y ago by Geoffrey Carlton‭  ·  last activity 6y ago by Geoffrey Carlton‭

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Q&A Train-World: Storing RHUs for decades to centuries

...no, I mean, supposedly, I believe there is more about it than mere kans on our part. Installations like this one are found all along the spoorwegs, and yes, around some you should tread light...

3 answers  ·  posted 6y ago by dot_Sp0T‭  ·  last activity 6y ago by dot_Sp0T‭

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Q&A What (and how long) would it take for all the water from a Great Flood to go away? How much would such an event shape the geography of the world?

Many worlds have an apocalyptic/cataclysmic event. If mine is a Great Flood, how long would it take for much of the world to be habitable land again? Keep in mind, by the events of the present, the...

1 answer  ·  posted 6y ago by Virdex_‭  ·  last activity 6y ago by Virdex_‭

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Q&A Would it be feasible for a series of coronal mass ejections (CME) from the sun to cause E1 EMP damage to electronics on Earth?

I am envisioning an apocalypse scenario where a majority of vehicles and electronics are disabled and a vast majority of Grid infrastructure is destroyed. The Carrington Event in the 1800s produced...

3 answers  ·  posted 6y ago by Goliathat‭  ·  last activity 6y ago by Goliathat‭

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Q&A Can osmium replace calcium or be placed in with it to make an organic human exoskeleton

I am trying to design my main character in my post-apocalyptic series to have a very dense, organic, durable skeleton. The skeleton should also be able to handle gun fire, a sledge hammer impact, a...

4 answers  ·  posted 6y ago by Amoeba‭  ·  last activity 6y ago by Amoeba‭

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Q&A Is this a fairly decent description for a post-apocalyptic fiction story?

Okay so the story takes place up in the northern hemisphere around glaciers and polar bears and all that good stuff, its main character is named Xavior and he is a good human adapted to the radioac...

1 answer  ·  posted 6y ago by Amoeba‭  ·  last activity 6y ago by Amoeba‭

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Q&A Could I intentionally trigger a Yellowstone eruption?

I'm very interested in a post-eruption setting in the continental United States. Unfortunately, it looks quite unlikely that a serious caldera-forming eruption is in our near future. However, we'r...

6 answers  ·  posted 8y ago by Avernium‭  ·  last activity 6y ago by Avernium‭

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Q&A When the Moon comes crashing down (wait, it doesn't)

EDIT: Yup, totally misguided here: http://www.physlink.com/Education/AskExperts/ae429.cfm Drifting away. So, no lunar catastrophe for me (without some other handwavium) I've read somewhere tha...

2 answers  ·  posted 9y ago by user3082‭  ·  last activity 6y ago by user3082‭

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Q&A How to rapidly make an Earth-analog turn into a scorching wasteland?

First of all, I'd like to make a disclaimer, and that is that I'm in a brainstorming phase as of now so this question will be generally vague. This also means that any ideas you're willing to propo...

8 answers  ·  posted 7y ago by Billy Joe Bob‭  ·  last activity 6y ago by Billy Joe Bob‭

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Q&A By how much would I need to suddenly increase Earth's gravity to give an extinction-level event?

Assume Earth of today was altered overnight. Some percentage of the more common elements of Earth's bulk (silicon, iron, and so on) are replaced with something much heavier. This changes the ov...

4 answers  ·  posted 6y ago by Leezard‭  ·  last activity 6y ago by Leezard‭

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Q&A Building Noah's Ark

The current topic challenge is apocalypse, so I figured I might as well come up with a question about surviving one. A man named Noah somehow learns that there will be a large flood within one yea...

3 answers  ·  posted 9y ago by HDE 226868‭  ·  last activity 6y ago by HDE 226868‭

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Q&A Could a solar superstorm or distant supernova wipe out all our extraterrestrial technology?

I'm imagining a universe where interplanetary, but intrasystem, space travel is common (e.g. at a similar level to The Expanse books/TV show) - but not necessarily our local solar system. Perhaps w...

4 answers  ·  posted 6y ago by jimbofreedman‭  ·  last activity 6y ago by jimbofreedman‭

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Q&A How to desiccate your world?

Mankind is adrift. Only few millions of people survived, they are struggling to stay alive. Food is hard to find and plants do not grow (mostly). Water cannot be found on surface, the only way to ...

14 answers  ·  posted 7y ago by A.Danzi‭  ·  last activity 6y ago by A.Danzi‭

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Q&A How many people are required for a healthy re-population of the Earth (Post-Apocalypse)?

In my particular Earth, much has remained after the human-killing virus, and nature is thriving - even taking over the cities. It's beautiful. But I have separated the healthy populace in orbit u...

10 answers  ·  posted 9y ago by Mikey‭  ·  last activity 6y ago by Mikey‭

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Q&A Mining for waste

Post apocalypse. What resources will be most abundant or useful if mined from Twentieth Century landfills. Easy things like steel and aluminium are obvious, but what else is likely to be worth digg...

3 answers  ·  posted 6y ago by Bert Olio‭  ·  last activity 6y ago by Bert Olio‭

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Q&A Would solar cells last?

Post-apocalypse how well would photo-voltaic solar cells hold up? They are solid state so I expect they would do okay for a while, but would they remain functional for 100+ years. I know that du...

5 answers  ·  posted 6y ago by Bert Olio‭  ·  last activity 6y ago by Bert Olio‭

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Q&A Can hydroponics and aquaponics replace traditional agriculture on the village level where soil is eroded?

I'm working on a post-apocalyptic desert scenario in the near future where people live in small, loosely connected communities that trade with each other on a small scale and might have agreements ...

5 answers  ·  posted 6y ago by H3R3T1K‭  ·  last activity 6y ago by H3R3T1K‭

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Rigorous Science What's the most efficient way to destroy civilization from orbit?

What's the easiest way for your stereotypical aliens to destroy civilization from orbit? I'm taking "destroy civilization" to mean the destruction of all large-scale forms of governance, but bonus ...

31 answers  ·  posted 8y ago by Nathan Ringo‭  ·  last activity 6y ago by Nathan Ringo‭

Question apocalypse
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Q&A Can a dedicated amateur astronomer spot a rogue asteroid?

Meet Joe. Joe is generally an average person with one special trait: He loves astronomy and star gazing. However, Joe has a great paying job as a web developer. He earns 120 000 USD yearly and has...

5 answers  ·  posted 6y ago by Pavel Janicek‭  ·  last activity 6y ago by Pavel Janicek‭

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Q&A How would nuclear fallout affect the oceans?

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, ...

7 answers  ·  posted 6y ago by neondrop‭  ·  last activity 6y ago by neondrop‭

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Q&A What sort of animals would inhabit my world?

This world takes place in the remains of the Eastern United States, devastated by 3000 years of neglect and climate change. The Mississipi river is pretty much a gulf now, which has caused everythi...

1 answer  ·  posted 6y ago by Nuclearwalrusnetwork‭  ·  last activity 6y ago by Nuclearwalrusnetwork‭

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Q&A Methods of containing/combating "grey goo" Von Neumann nanomachines?

The grey goo end-of-the-world scenario in which lots of little microscopic Von Neumann self-replicating machines basically eat everything to make more of themselves. Eventually everything is grey ...

7 answers  ·  posted 9y ago by neph‭  ·  last activity 6y ago by neph‭

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Q&A What kind of apocalyptic event can be predicted years before it happens?

I'm looking for a realistic apocalyptic event, which can't be prevented, but can be accidentally predicted long before it actually happens. By the prediction I mean a scientific prediction, of cour...

18 answers  ·  posted 6y ago by Sanko‭  ·  last activity 6y ago by Sanko‭

Question apocalypse
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Q&A How many people would survive the nuclear winter after a full-scale nuclear war, and where?

Could anyone could survive a nuclear war and all that follows? I have read many things saying they would, and read other science-based answers, but they all talked about a nuclear war that was re...

4 answers  ·  posted 7y ago by TechPro19‭  ·  last activity 6y ago by TechPro19‭

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Q&A How can a person without Geiger counter and modern education in physics learn the concept of radioactivity?

Imagine there are two regions, one of which has a significantly higher level of radiation. Think of Pripyat (higher level of radiation) and its surroundings (lower levels). How can a person withou...

5 answers  ·  posted 8y ago by DP_‭  ·  last activity 6y ago by DP_‭

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Q&A Is it conceivable, or at the least verisimilar, for Plutonium radioisotope generators/atomic batteries to power a small manufacturing town?

A small manufacturing town serves as a comparison. The worldbuilding significance is for an underground facility with, in addition to a medical center, small-scale chemical production, a machinist ...

1 answer  ·  posted 6y ago by System‭  ·  last activity 6y ago by System‭

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Q&A How could the planet Jupiter be flung out of the Solar System

Working on a bit of a story that includes the ejection of the planet Jupiter from the solar system rather suddenly with all of the planets staying generally within it. I understand this is complica...

2 answers  ·  posted 6y ago by AJH‭  ·  last activity 6y ago by AJH‭