All Questions

0
votes
0answers
4 views

What is the number of square kilometers of crops necessary to feed a population of 100,000?

Yo. I have a city. Pop. 100,000. They need to eat. Due to pantheism as their government-enforced religion, they do not eat meat. I need to know how much space in square kilometers would be needed in ...
2
votes
2answers
30 views

A world without fire - what will the military use as their main solider level weapon?

Assume that modern day earth discovers a way to create portals to another planet, travel between the two planets is fast, safe & easy. The way this works is that there are fixed points on earth ...
11
votes
3answers
77 views

If a person had control of every single cell of their body, would they be able to transform into another creature?

If a person had control over each and every single cell in his body, I.e: Cell growth Cell multiplication Shape and form of cells How cells bond/bind with each other Cell Function Would they be able ...
3
votes
3answers
80 views

Military academy in geostationary orbit

Say a novel is set 100 years from now, when a confederation of nations establishes a unified military force. (Yes, I know, but this is fiction after all) Would a military academy, training astronaut ...
0
votes
1answer
58 views

If Earth was one third it's size, and had 1/3rd it's current gravitational pull, how would life look? [on hold]

So, to start off, I am not even sure if life would develop, because I am not clear on how the mass of the planet or gravitational pull affects chemical evolution, but assuming that life did start in ...
-1
votes
0answers
35 views

If the Roman Empire had lasted 200 years later, how would history be changed? [on hold]

If the Roman Empire had lasted two hundred years later, not collapsing until the 7th century, how would history have gone differently?
6
votes
2answers
77 views

Could Xenarthrans Be Ferried Outside South America?

Right from the beginning, the xenarthrans--armadillos, sloths and anteaters--have been at a disadvantage. For the longest time, their home was an island continent, which made them extremely ...
0
votes
0answers
34 views

Terraforming the Nine Earths, Episode I: Could Cyanobacteria Thrive in Muspellheim?

Long ago, I asked a question on how to make the Nine Realms of Norse mythology--Niflheim, Muspelheim, Asgard, Midgard, Jotunheim, Vanaheim, Alfhiem, Svartalfheim and Helheim--a reality in regards to ...
2
votes
2answers
74 views

Would this “self driving” car work?

The great venture capitalist Elian Minsk has decided to start an "autonomous" car driving service. But who needs complicated AI based systems when he can hire tech support workers in India to drive ...
4
votes
3answers
82 views

Salem witch trials safe haven

With the story I'm writing I really want to find an accurate place to set up a school (preferably in New York) that was originally a safe place to go to during the Salem Witch Trials. I'm hoping to ...
7
votes
5answers
554 views

At what point in European history could a government build a printing press given a basic description?

Say a time traveler ends up back in time and has earned the good graces of one of the nations' kings by sharing some of his future knowledge. Knowing that the printing press was an important ...
3
votes
2answers
105 views

What would be the best way for a supernatural entity to fit into a physical body smaller in mass and volume?

Angels are advanced technological beings who are messengers of the gods. These extra-dimensional beings are large, upwards of 30ft tall, and resemble eldritch abominations in their true form, such as ...
3
votes
1answer
95 views

Plausible magic systems? [on hold]

I’m currently world building a high fantasy story. Within this story there are a species(most of the characters are a part of this species) that have abilities. These abilities are determined by how ...
6
votes
6answers
367 views

Externally monitoring CPU/SSD activity without software access

A secret government organization created the largest and most advanced computer cluster ever. Ridiculous amounts of money went into it, and it is decades ahead of the competition. The goal of this ...
5
votes
2answers
108 views

Seasonal Shade-Plant

There is a forest in my world with a special property: All the trees are optimised to shade as much as possible during summer and give as little shadow as possible during winter, to regulate the ...
4
votes
3answers
131 views

Could six-limbed creatures evolve from griffin or dragon to centaur?

In my setting, centaurs are related to other six-limbed creatures such as dragons and griffins (the "fur" is actually made up of tiny feathers). Assuming they were originally creatures similar to six-...
15
votes
9answers
3k views

Looking for a soft substance that doesn't dissolve underwater

I'm writing a story that takes place entirely underwater, mostly in a deep sea town and shallower city. Both are underwater and populated by beings who can survive underwater. My thinking is that ...
18
votes
10answers
5k views

What does the view outside my ship traveling at light speed look like?

World Rules: Travelers are able to move at the speed of light without disruption of their lives. Time passes "normally" for them. They think, breathe, love, cry, and steer the ship as if they were ...
7
votes
3answers
123 views

Rotation, weight and planet size

Wouldn't it be cool if giant monsters were on giant planets? Of course it would be, but unfortunately physics doesn't really like that idea. Big planets make things on them need more support, so being ...
25
votes
6answers
6k views

Could a 19.25mm revolver actually exist?

I'm working on writing a story wherein there is a revolver inspired by Guillermo del Toro's Hellboy's samaritan. My question is; can such a gun, as described below, work? Or would it be a bone breaker ...
7
votes
5answers
617 views
+50

How can a coven of witches operate as a pyramid scheme?

A crone is a witch on the path to achieving godhood by stealing the life force of others through a dark ritual. The second stage on this path is the baba yaga, a point where the crone loses all traces ...
2
votes
7answers
210 views

Alternatives to War [on hold]

In this world, violence has developed to be perhaps most definitive, means of action. Not just humans, but many other species face the harshness of battle, be it to defend their young or gain ...
3
votes
1answer
91 views

Inner ring on rotating wheel space station?

Could Space Station V, from 2001: A Space Odyssey have an inner ring? Would the inner ring have a different G-force if the inner ring was halfway between the outer ring and the hub. Would there be ...
17
votes
14answers
6k views

A steel cutting sword?

So within my world there exists a faction of monks on a secluded mountain whose scientific and philosophical knowledge outstrips the outside medieval world. And with these monks being famous more for ...
7
votes
3answers
217 views

Which moon is most favourable as a refuelling station?

My hypothetical gas giant has five major moons. Three of those moons are icy bodies with abundant water ice and volatiles. Any of these could provide fuel for translunar spacecraft, or for spacecraft ...
2
votes
4answers
163 views

Solar panels on rotating wheel space stations

What would be the best configuration of solar panels on a rotating wheel space station? I am thinking about Space Station V design and dimensions. Space Station V comes from 2001: A Space Odyssey. ...
8
votes
7answers
364 views

In an interstellar/interplanetary civilization, which would be most common/cheapest in the market: Plastic or metals?

Considering that oil is only really prevalent on earth (where dead biomatter can be compressed over millions of years into long hydrocarbons) I began to think that plastic might be just as rare as ...
4
votes
2answers
149 views

A Dozen Cubic Miles of Volcanic Ash--How Big Would the Cloud Be?

On May 18, 1980, Mount Saint Helens made American history with an eruption that took 57 human lives and killed thousands of animals. It has released only a quarter of a cubic mile of ash, but it is ...
1
vote
4answers
169 views

How would the terrain of a snow-covered mountain deter a mechanized army?

My story is set in a fortress town built below a mountain, and revolves around the struggle between the witch who protects the mountain and the tyrant who seeks to plunder it for resources (think ...
2
votes
4answers
201 views

Crete-sized floating island plausibility

Biggest icebergs have areas roughly similar to Crete and 500 meters thick, (https://en.wikipedia.org/wiki/Iceberg_B-15) I assume most of that thickness is hidden underwater, sadly I could not find ...
19
votes
7answers
4k views

Is it possible to remotely hack the GPS system and disable GPS service worldwide?

The title pretty much says it all. I'm wondering if it is possible through "digital" means only (aka any physical disruption of satellites is not allowed) to disable the US GPS satellite ...
2
votes
2answers
278 views

What is the upper bound for Lightspeed?

Followup to my lower bound light speed question. I was told on the Sandbox to split the lower and upper bound for light speed in different Questions. Yes they are similar but it is possible that ...
5
votes
5answers
510 views

What is the lower bound for lightspeed?

I am investigating the possibility of modifying the speed of light in my world. Assuming that the speed of light in a vacuum can (and in my world, is) modified, what lower bound exists that would ...
2
votes
3answers
123 views

How can I make genetic purity neccessary for a dark ritual involving possession of an elder god? [on hold]

The crawling chaos, Nyalathothep, has formed a cult on the mortal plane devoted to his cause which worships him as a god. This cult has been operating in secret for thousands of years, sowing ...
1
vote
3answers
199 views

Biggest possible Steampunk Airship? [duplicate]

I have noticed that one thing that is very common among steampunk airship art is that the size of the decks beneath the gas chamber is outrageously larger than that of the real world. Example: ...
5
votes
0answers
69 views

Temperature of gas giant's moons in a red dwarf system

im new. This is my first question. Ive read some other post that gave me valuable insight, but i still have some doubts. First, some specifics: Star: red dwarf. 80 x jupiter mass. 3 billion years ...
6
votes
1answer
174 views

What would be the effects on a planet orbiting a shedding red giant?

In a sci-fi RPG I eventually intend to run for a couple of friends, I had the idea of them visiting ancient ruins on a planet orbiting a shedding red giant. Now, ignoring the problem of intelligent ...
5
votes
5answers
305 views

Making the God-Hand Make Sense

In my world an advanced alien civilization are worshiped as gods by the human population. As the gods have better things to do than actually spend time interacting with the local fauna they created a ...
7
votes
7answers
204 views

Would intelligence affect the evolution of colorful display patters for attracting mates?

On another planet there is a group of organisms that have colorful display patterns allowing them to attract mates. Eventually a branch of this type of organism evolves the intelligence of early ...
0
votes
0answers
55 views

Start with the Macro or Micro [on hold]

1) What are the benefits to starting large and working down into the nitty gritty v starting extremely locally and filling in details as you expand? 2) What method works better for you and why?
9
votes
14answers
3k views

Natural Armour and Weapons

In my fantasy world, the magic system pretty much makes metal armour and weapons obsolete. The magic system's specifics aren't important, just note that the magic system allows the users to 'penetrate'...
51
votes
20answers
11k views

What could a self-sustaining lunar colony slowly lose that would ultimately prove fatal?

I've got a lunar colony that was set up to be self-sustaining before a collapse of life on Earth. The colony has survived on its own for several thousand years through a period of technological ...
4
votes
8answers
296 views

How to ethically utilize ability to transfer life from one human to another? [on hold]

Lets say that a method has been discovered to transfer the 'life-force' from one individual to another, killing the donor but providing the recipient with healing and an extended life. The healthier ...
28
votes
7answers
5k views

Is my plasma cannon concept viable?

I’ve developed a concept for a plasma cannon, and I need it reality-checked. The cannon would gather ammunition by pumping air into the gun through an external fan. The air would gather inside a ...
30
votes
8answers
5k views

Of strange atmospheres - the survivable but unbreathable

Most gases that are toxic to breathe also do nasty things to the skin when they're in the atmosphere at dangerous concentrations - and one is walking around without sealed protective clothing; sulfur ...
6
votes
3answers
305 views

No Iron for your fair-folk maiden? (Part 1)

Excuse the broad question but I couldn’t resist making a metal pun. So in my universe the Fair Folk encompass a large group of creatures. They live in their own little pocket universe, in which ...
3
votes
2answers
118 views

Launch window from heliopause to Earth?

Assuming an ion propulsion ship was leaving station in an orbit at the radius of the heliopause, and the most direct trajectory takes 18 months to get to Earth, would there be a launch window or could ...
8
votes
3answers
416 views

Underwater city sanitation

In a vaguely Medieval setting with some limited magic, how would an underwater city handle sewage? Sanitation was one of the biggest limiting factors in the growth of human cities, and being under ...
6
votes
5answers
325 views

How Are Humans Special? [on hold]

Setting: Far future space based science fiction. Think Star Trek: Enterprise levels of tech with more consistency and more resources if that helps. There are 4 sentient species in my setting: Homo ...
7
votes
3answers
469 views

How can I prevent holy aura from a human body from radiating too strongly?

When gods descend to the mortal plane, they must inhabit specially built bodies in order to maintain their presence and hold their aethereal energies. These bodies are built in the aethereal realm ...

15 30 50 per page