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2
votes
0answers
16 views

Is Santa taking off risk creating a black hole, and will the good kids receive presents survive it?

Santa has to visit roughly 822 houses a second on Christmas day. At each house he has to stop, go down the chimney to deliver toys, then take off for the next home in a millisecond's time. As the ...
1
vote
2answers
62 views

Aliens blew up Pluto so we would stop debating whether or not to call it a planet, what happens to Earth?

It seems the Fraxians, an alien race from Alpha Centuri, have been secretly watching our television ever since we started broadcasting it (well technically I suppose 4.367 years after we started ...
2
votes
1answer
85 views

How would basic and complex life evolve in a gas giant

Obviously the chances of life arising in such inhospitable and unlikely as a gas giant are next to none. Instead let us theorize that a local orbiting moon of a Jupiter-like gas giant which contains a ...
1
vote
3answers
154 views

Departments of an Uplifted Galactic Government

One of the gods in the universe stumbled across an species with potential and decided to uplift it. Instead of uplifting over the course of a couple thousand years, the god decided to do it in one ...
5
votes
9answers
3k views

Would using carbon dioxide as fuel work to reduce the greenhouse effect?

I'm trying to find a plausible way to reduce global warming in a world past the tipping point. I recently read this article : https://www.sciencedaily.com/releases/2017/11/171127173225.htm. It ...
9
votes
6answers
2k views

How to hide your own body? [on hold]

It's the perfect locked-room mystery: the police find the victim murdered, but the room is locked from the inside. How did the killer escape? He didn't. After committing the murder, the killer ...
2
votes
2answers
106 views

Cooling the interior of a spacecraft to below the freezing point

I understand the Apollo 13 CM got down to 39°F after it was powered down following the explosion in the oxygen tank. Could the interior of the ISS be cooled (for more than 12 hours) to below 32°F ...
32
votes
13answers
5k views

Killing a star safely

A messenger from the stars just arrived in peace but has brought horrible news. A vast swarm of planet devouring phototropic insects are approaching from deep space and our only hope is to obscure or ...
6
votes
7answers
1k views

What would be the effects of (relatively) widespread precognition on the stock market?

I am working on a story in which around 1% of the world population has at least some semblance of a metahuman ability. Many metahuman abilities are advantageous in traditional employment, and I ...
2
votes
1answer
61 views

What's the climate consequences of a planet with these characteristics?

I'm designing a new planet, but I'm having some troubles figuring out the climate. The planet's rotation axis is at a 45° angle relative to its orbital plane, and each rotation takes 24h. The planet'...
2
votes
1answer
114 views

Requirements for race that lives close to a sun [on hold]

I have an idea for a race that lives on a planet that is extremely close to a sun (similar to ours), just far enough away to not be pulled in. So my question is, what would be the requirements for a ...
2
votes
0answers
96 views

What if Gnostic Christianity won out? [on hold]

If some early church father (such as Saint Paul) had at any point converted and preached Gnostic theology instead, resulting in a different dominant Christianity, what would take place? From what I ...
-2
votes
1answer
72 views

Are you able to mix amber with different elements to give properties beyond encasing and preserving? [on hold]

Is it possible to mix it with other elements to give it properties beyond preservation? Like strengthen a sword, or enhance a person's muscles. I've been looking around to see, however I've yet to ...
0
votes
3answers
72 views

How can I design the structure of a soul so that it cannot hold on to life energy? [on hold]

When Jehovah create the universe, he left it to the angels to make life as they saw fit. To this end, he gave to them a portion of his power, the demiurge, which is the spark of life used to create ...
11
votes
11answers
5k views

Can a creature sustain itself by eating its own severed body parts?

I was inspired by geckos which can sever their own tails. I wonder if a creature which has such an ability, especially with a high regenerative power to grow its body parts, can sustain itself over ...
5
votes
4answers
284 views

What's the largest an Earth-like planet can be and support Earth's biosphere?

For certain reasons I decided to not set my story on Earth. However, the planet is meant to host an Earth-like biosphere (including humans, most of Earth's species (perhaps some that didn't evolve ...
1
vote
2answers
110 views

How can an elder god's corporation remove suspicion from its plans while preserving its clandestine monopoly?

The elder god Mickeyruth seeks to enter our reality and dominate humankind. To accomplish this, he has used his loyal cult of followers to found a company called Disney. Throughout the decades, this ...
1
vote
1answer
101 views

How would a very old biosphere differ from Earth's “young” one?

On my world, the equivalent of the Cambrian/Avalon explosion happened 5 byr (2 byr after formation) ago as opposed to 0.5 byr ago on Earth. The planets rough parameters are: mass between 0.4 and 0....
2
votes
1answer
86 views

Questions about sick trees in wood

I want to write a piece of fiction about a female tree caretaker who researches a small group of beeches in a wood. When she arrives, she sees that the trees are dried out. Is it realistic to say ...
3
votes
2answers
126 views

In a 'Zootopia' situation who's in power, the Elephant or the Mouse?

Imagine a situation kind of like Zootopia with many different creatures all living in one environment, some significantly larger than others. These species aren't necessarily furries like in Zootopia,...
0
votes
1answer
178 views

Does my climate map work?

I'm looking for notes on my climate map for a continent I've mapped out. Does this set up seem plausible. Map (Imgur) [3 Previous question with general planetary conditions edit Don't have time ...
0
votes
2answers
96 views

Can ice magic freeze blood?

In my story, one of my main characters has ice powers. She can turn water into ice, she can conjure ice (sucking moisture out of air and freezing it). She can also drop someone's body temperature, as ...
3
votes
1answer
69 views

Catagorizing Gods [on hold]

In the world I'm building, the characters are facing, allying, opposing, or simply investigating various gods. It pulls from assorted world myths, legends, religions, and culture (and also recognizing ...
3
votes
3answers
156 views

How could I scientifically explain a world with day/night cycle only on the equator?

I'd like to build a world that has one pole where it's constantly day (all year long) and the weather is very hot, and one where it's constantly night (all year long) and the weather is freezing. I'd ...
1
vote
3answers
172 views

Where could materials to build a Dyson swarm come from?

Let's assume we want to build a Dyson swarm that collects over 90% of the energy from the sun and orbits between the Earth and the sun. Also assume that we want to get none of the resources to build ...
3
votes
2answers
112 views

How do I convince the general population using large monsters is the most efficient means of protecting our compact cities?

Context Monsters are a bit of a problem on this world. Though most pose a marginal threat and are categorized as vermin, others represent a serious risk to major population centers as a consequence ...
1
vote
3answers
213 views

Infinite energy, helicopters and world-wide attention

Story is set in our days, modern Earth with all it's current problems and conflicts. Let's say someone had secretly found a way to produce almost infinite (reasonably infinite, of course) amount of ...
2
votes
4answers
178 views

Helping the Roman Empire with chemistry and metallurgy [on hold]

You are a modern chemist and metallurgist and unexpectedly get sent back in time to the era of Caesar Octavius Augustus. After spending a couple years learning ancient Latin, what changes or ...
37
votes
11answers
6k views

When will the last unambiguous evidence of mankind disappear?

Humanity just disappears tomorrow, let's say it is like the Thanos-snap but it kills everyone. How long until the last unambiguous evidence of our existence disappears? What was this last relic? The ...
2
votes
3answers
158 views

Gas Giant with solid surface

I have the feeling the answer to this will come down to ''impossible'' but let's ask anyway to be sure. We know gas Giants have no solid surface and if you tried to land on one you would fall into ...
1
vote
0answers
173 views

What is the largest dragon that could take off without destroying the planet?

Inspired by this answer: Suppose there is an enormous dragon sleeping underground (let's not worry about the biomechanics of how such a creature could exist). One day, it wakes up, shakes the earth ...
4
votes
3answers
642 views

The plausibility of a pack-hunting carrion-eating snake

I was thinking of a hypothetical species of snakes that join together for protection called Ladôni, due to their habit of mobilising in massive beds which make them resemble a large multi-headed snake....
0
votes
2answers
175 views

In a stable medieval fantasy population, what should be the yearly birth rate per 1,000 people?

For a human or human-like stable, small settlement population, living in medieval fantasy, how many yearly births per 1,000 inhabitants are expected? Assuming: There is no major epidemic. There are ...
1
vote
3answers
92 views

what is the proper physical build of a fantasy adveturer? [on hold]

I am trying to make a game and I want the characters to look somewhat like they could actually be someone who goes around slaying monsters, fighting evil over lords and their henchmen, all while still ...
11
votes
15answers
3k views

Who or what determines if a curse is valid or not?

I'm making a fantasy world and wanted to incorporate curses and geases into the story. When I say "curses" I mean two types, but mainly this: The type where you write your curse and either: perform ...
-1
votes
0answers
92 views

Does a black hole have a speed limit for absorbing matter? [on hold]

Does a black hole absorb all matter at the same speed regardless of whether it is light or normal matter? Say it begins to suck in a photon and also some asteroid. Will both objects be accelerated/...
1
vote
1answer
109 views

Effects of multiple moons on a planet

Judging by our own planet we know what the effects of a moon on a terrestrial planet are. We also know that if a planet has two moons on the same side you would get insane tides and that two moons on ...
1
vote
2answers
89 views

Required RPM for a Hamster wheel style Habitation ring on a spaceship to generate roughly Earth-ish gravity [duplicate]

I'm looking at a ship that is pretty big. About 720 feet from nose to tail, with two stonking big rockets on the sides, these will flip for deceleration. At roughly the same rotational pivot point, in ...
4
votes
3answers
217 views

Can you prevent a star from dying with infinite energy?

In my story, an advanced alien civilization that can travel to other universes has created an infinite energy source, named "an amvelian core". This core resembles a small sphere in appearance (about ...
7
votes
1answer
169 views

Can a person who gained immunity to a disease become an infectious carrier?

If a person is sent out of their hermetically sealed community and in the process becomes immune to a deadly disease. When the person returns will the immunity make them a carrier and infect/kill all ...
9
votes
15answers
3k views

What could make large expeditions ineffective for exploring territory full of dangers and valuable resources?

Some sort of cataclysm suddenly creates a territory full of deadly monsters and other dangers, but also valuable resources. Trivial example: a magic volcano suddenly erupts and the mountain is now ...
17
votes
11answers
6k views

Which modern firearm should a time traveler bring to be easily reproducible for a historic civilization?

Eureka! Our hero just discovered the secret of time travel, but what to do with it? "I know!", he says. "I will travel back in time as far as I can and hand them a modern firearm. They will learn how ...
5
votes
1answer
137 views

Kinetic weapons - establishing an upper limit when dealing with grey goo

This answer to my last question suggested, rightly, that there are targets dangerous, and large scale, enough that there is neither overkill nor spillover damage when it comes to attacking a planetary ...
8
votes
4answers
612 views

How would thermophilic fish survive?

I'm designing alien creatures for illustrations, and I'm just sketching some that might live in areas with a lot of geothermal activity. So basically, animals that live around geysers and hot steam. I ...
5
votes
1answer
117 views

Terraform Mars with Phobos dust?

According to the following reference, a few tons of infalling space dust cause the Martian clouds: https://www.sciencedaily.com/releases/2019/06/190617125120.htm. These clouds can boost local surface ...
23
votes
7answers
3k views

Demographic consequences of closed loop reincarnation

My question is inspired by the Tolkienesque elven cycle of rebirth, but with a twist. Suppose "elves": Do not experience aging after reaching maturity and do not die of old age or diseases Mature ...
2
votes
2answers
98 views

Is it possible for theoretical particles such as tachyons to interact and/or bond with normal matter

I understand that particles such as tachyons don't really exist and are unlikely, but say for the sake of this question they do. Would these particles bond or interact with atoms? By interactions I ...
6
votes
2answers
285 views

Escaping a blackhole with an Alcubierre drive?

If your ship just got trapped inside the event horizon of an super massive black hole, could the ship "accelerate" back out with an alcubierre drive?
14
votes
4answers
4k views

Is surviving this (blood loss) scenario possible?

So my character (16 yr old girl) got a deep cut (inches across) from a dagger across her torso and is knocked unconscious. (She falls onto her back) She had just enough time to contact her friends ...
4
votes
2answers
186 views

If Earth Were a Gas Giant's Moon

Here is what we know of Earth: Mass: 5.972 sextillion metric tons Diameter: 7,917.5 miles Density: 5.51 grams per cubic centimeter Rotation: 24 hours Revolution: 365 days Core: 760 miles wide, ...

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