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Q&A

Posts tagged alternate-worlds

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Q&A Could a habitable planet lit by the cosmic microwave background plausibly exist?

I've got this idea of a rogue planet that is moving that fast through the intergalactic void that the cosmic microwave radiation, thanks to the Doppler effect, actually provides enough heat that it...

1 answer  ·  posted 1y ago by celtschk‭  ·  last activity 1y ago by dsr‭

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Q&A What would days and nights look like on this cylindrical world?

This is yet another "literal worldbuilding" question, as in, building worlds. Inspired, in part, by this question. What if this world is a very long (effectively infinite) hollow cylindrical cavit...

4 answers  ·  posted 2y ago by Yuriy S‭  ·  last activity 2y ago by Yuriy S‭

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Q&A What is the tallest mountain possible in any gravitational environment?

In world building it is often interesting to consider extreme landscapes "“ how tall can a mountain be on Earth for example. But what is the tallest mountain possible in any gravitational environme...

2 answers  ·  posted 3y ago by Slarty‭  ·  last activity 3y ago by Slarty‭

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Q&A The Serina Series: Episode I: Cats

"Serina" is a popular speculative evolution project in which, apart from a long list of fish, invertebrates and plants, the only terrestrial chordate to colonize this terraformed moon is the canary...

2 answers  ·  posted 3y ago by JohnWDailey‭  ·  last activity 3y ago by JohnWDailey‭

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Q&A How could human-like aliens survive on Pluto?

I apologize if I continuously ask different questions about different concepts for stories. It's just that I can never make up my mind on what to write, and sometimes, my ideas change. But anyway...

3 answers  ·  posted 3y ago by Daikyu Maryu‭  ·  last activity 3y ago by Daikyu Maryu‭

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Q&A How extreme can a habitable tidaly locked world be?

I want to create a tidally locked world with a habitable (broadly Earth like atmosphere and biome that humans could breathe and live in) band stretching around the terminator pole to pole. There wo...

1 answer  ·  posted 3y ago by Slarty‭  ·  last activity 3y ago by Slarty‭

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Q&A What sort of world would help prevent an intelligent species from discovering evolution?

I'm working on a first contact story set in the near future where an advanced alien species arrives at Earth and reveals itself to humanity, but is utterly baffled by the diversity of life that it ...

19 answers  ·  posted 3y ago by Slarty‭  ·  last activity 3y ago by Slarty‭

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Q&A How could two alternate realities "blend" at a single point in space time?

From: https://en.wikipedia.org/wiki/Multiverse The multiverse (or meta-universe) is a hypothetical set of various possible universes including the universe which we live in. Together, these u...

10 answers  ·  posted 5y ago by Len‭  ·  last activity 3y ago by Len‭

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Q&A What are possible energy carriers besides ATP?

I'm thinking about designing an alien race. The race is carbon-based and evolved on a world with an average surface temperature between 40 and 60 degrees Celsius. Now, on Earth, almost all lifeform...

1 answer  ·  posted 3y ago by user73910‭  ·  last activity 3y ago by user73910‭

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Q&A Life without a bright star?

The main source of free energy that allowed life on Earth to develop was our sun. It bombards the planet's surface with photons of high energy, which provide activation energy for reactions necessa...

2 answers  ·  posted 3y ago by Franklin Pezzuti Dyer‭  ·  last activity 3y ago by Franklin Pezzuti Dyer‭

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Q&A How would humans live in a world made primarily of glass?

Setup: Earth developed in an alternate universe with small oceans and little water. A little before animals first left the oceans and began to walk on land, when all of Earth's land was barren sand...

2 answers  ·  posted 3y ago by Rory M. Tims‭  ·  last activity 3y ago by Rory M. Tims‭

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Q&A If my world is flat (obviously not possible) how would I explain the edges?

I don't want my world to be infinite, that would be a pain to draw maps for. And I need it to be flat (for a slightly unrelated reason). How would I explain why no one has looked over or seen the e...

28 answers  ·  posted 5y ago by Gray9‭  ·  last activity 3y ago by Gray9‭

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Q&A An enviroment where a bird-like creature can survive on passive feeding

The question about a diet of dust brought up a few creatures that survive on dust, however they were all insect-sized or smaller. This got me thinking about the Blue Whale, which survives on a diet...

7 answers  ·  posted 8y ago by Mourdos‭  ·  last activity 3y ago by Mourdos‭

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Q&A What effect would a red sky and/or sun have on plants and animals?

If an Earth-like planet had an older, red sun "” or maybe just a reddish sky due to some property of the atmosphere "” how would that affect the growth and/or adaptation of plant and animal life on...

1 answer  ·  posted 8y ago by Omegacron‭  ·  last activity 3y ago by Omegacron‭

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Q&A Possibile explanation for a [somewhat] realistic floating continent scenario?

I'm writing a story that takes place in a world where people live on continent-sized chunks of earth (basically the size of tectonic plates) suspended in the air, left over from some cataclysmic ev...

2 answers  ·  posted 3y ago by Dave Murdock‭  ·  last activity 3y ago by Dave Murdock‭

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Q&A What kind of gas would allow a rock to float? And what kind of rock would it be?

Scenario + question: So for the purposes of this question lets so that there is a canyon much like the grand canyon but about 50 miles deeper, so the bottom is always in shadow and it has no observ...

4 answers  ·  posted 5y ago by Gray9‭  ·  last activity 3y ago by Gray9‭

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Q&A Sound From a Super Nova

Let's say there exists an alternate reality from ours that is identical in every aspect save for one. There exists a substance in space that allows for the transmission of sound. Let's call this su...

1 answer  ·  posted 7y ago by kylie.a‭  ·  last activity 3y ago by kylie.a‭

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Q&A Make slimes great again, but how?

Slimes are seen as merely base-level enemies which don't really challenge the heroic main character, the Chosen One. My question is how to make slimes incredibly powerful without using magic. The...

23 answers  ·  posted 4y ago by System‭  ·  last activity 4y ago by System‭

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Q&A Need some help in creating silicon life in cold temperatures

I am a new person to this but I have been looking at similar questions about silicon life. I'm currently trying to create silicon-based lifeforms on a planet with a surface temperature of about, -...

1 answer  ·  posted 4y ago by Enderborn-7th‭  ·  last activity 4y ago by Enderborn-7th‭

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Q&A Areas with high energy on an Earthlike world

In an earth-like world, what can I provide as examples of areas where high energy is generated naturally? I'm looking for sources of energy other than heat, for e.g, volcanoes and geothermic vents.

6 answers  ·  posted 4y ago by Lord of the Larks‭  ·  last activity 4y ago by Lord of the Larks‭

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Q&A Designing the most boring planet ever discovered. Part 1: planetary surface

@Gryphon has made me aware of this The Least Interesting Substance It is very close but I need a planet that can form naturally. Would any of the substances mentioned in answers to that question b...

4 answers  ·  posted 4y ago by chasly from UK‭  ·  last activity 4y ago by chasly from UK‭

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Q&A Properties of a planet roughly four times as big as Earth

I have some research I want to do about a planet for a novel I'm writing. It is a fiction/science fiction novel, but I do wish to actually have some parts of the world correct in the scenes I depic...

2 answers  ·  posted 4y ago by GaryS‭  ·  last activity 4y ago by GaryS‭

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Q&A Could the equator of a world be a closed-time like loop?

Most works of fiction have quite imaginative views of time travel. Mighty machines that teleport in time instead of space. Gaping portals in space that take you to another time. Mystical beings wit...

1 answer  ·  posted 4y ago by PyRulez‭  ·  last activity 4y ago by PyRulez‭

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Q&A Rivers flowing uphill

In this article, scientists are investigating river channels on Earth, Mars, and Titan to see how rivers modify their landscapes. The following quote caught my eye: Rivers are, in a way, topogr...

9 answers  ·  posted 5y ago by Isaac Kotlicky‭  ·  last activity 4y ago by Isaac Kotlicky‭

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Q&A Electric muscles

There is a popular belief that the muscles of our body are controlled only by electrical impulses. This is not entirely a lie, but ... From what little I have researched, the nerves send a command ...

1 answer  ·  posted 4y ago by Neto Ananias‭  ·  last activity 4y ago by Neto Ananias‭

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Q&A How long would a flat Earth last?

As we all know the Earth is flat. Once upon a time a group of explorers set off with the idea of proving that the world was round and that there was a route to the spice islands the other way, but ...

2 answers  ·  posted 4y ago by Separatrix‭  ·  last activity 4y ago by Separatrix‭

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Q&A How would a "reversed planet" be able to exist?

I want to write a novel situated in a "reversed planet": there are two stars orbiting each other, and there is a little spot exactly in the middle of the two that is suitable for life. A normal pla...

10 answers  ·  posted 6y ago by JackIta‭  ·  last activity 4y ago by JackIta‭

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Q&A Creating a Matryoshka Shell World: Sectioning

In my previous two questions regarding temperature regulation and Rotations I set up the idea of creating a multi-layered shell world consisting of planetary crusts stuffed inside one another creat...

1 answer  ·  posted 4y ago by GuidingOlive‭  ·  last activity 4y ago by GuidingOlive‭

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Q&A Creating a Matryoshka Shell world: temperature regulation

In a galaxy far far away, during a fit of inspiration for a super massive marvel of technology, the Imperator dedicates an astounding 10% of energy and materials from his civilization's dyson spher...

4 answers  ·  posted 4y ago by GuidingOlive‭  ·  last activity 4y ago by GuidingOlive‭

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Q&A Arms without wrists

The human hand can be flexed at the wrist, extended and even abducted or adducted while the forearm can also be twisted in supination or pronation giving the illusion of the wrist twisting. All o...

5 answers  ·  posted 4y ago by System‭  ·  last activity 4y ago by System‭

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Q&A Papers, please: Can characters trapped in our reality acquire enough paperwork to be legal?

Being at Anime Expo last weekend got me thinking about all the "trapped in another world" anime I watched as a kid: Inu Yasha, Fushigi Yuugi, Escaflowne, etc. The general plot of these is that a hi...

18 answers  ·  posted 7y ago by thatgirldm‭  ·  last activity 4y ago by thatgirldm‭

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Q&A How could it be possible for an entire region of space to be filled with Earth like planets?

Ok, I get it, me dumb, you smart. Only smart questions allowed. In any case I'm going to leave the question unaltered in case some others might get something out of the answers. Thanks to everyon...

6 answers  ·  posted 5y ago by Len‭  ·  last activity 4y ago by Len‭

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Q&A Photosynthesis analog, plausible?

So on a planet with a chlorine based atmosphere and only a small amount of oxygen, here is my proposed mechanism for chlorine based photosynthesis. Carbon tetrachloride, since it is a liquid at 7...

1 answer  ·  posted 4y ago by Caters‭  ·  last activity 4y ago by Caters‭

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Q&A How would a species in one dimension with its own properties go to another dimension with slightly different properties?

In my world, I have three dimensions, each of which have their own special properties. From each of these three dimensions come a master race of said dimension: From the first, the master race is...

3 answers  ·  posted 4y ago by Mansoor Ahmad‭  ·  last activity 4y ago by Mansoor Ahmad‭

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Q&A How would mountains and hills have to be made-up in order to impede tunneling them WHILE still allowing them to be mined out?

In my con-world I went lengths to introduce a plausible lighter-than-air element and did rather large amounts of thinking about landmasses in order to promote the development of airship technology ...

3 answers  ·  posted 6y ago by dot_Sp0T‭  ·  last activity 4y ago by dot_Sp0T‭

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Q&A What circumference would a no season temperate climate planet have

Imagine a planet, 3/4 water and 1/4 landmass. No axis tilt so the climate is moderate throughout the year. IE peak temperatures at 100°F at equator. It orbits a sun about the size of ours and h...

1 answer  ·  posted 4y ago by Clay Deitas‭  ·  last activity 4y ago by Clay Deitas‭

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Q&A What would life on Earth be like if the Sun was replaced by two blue giants?

Allright, what i'm asking is how life would be like on Earth (which pretends Earth could develop life in the "short" life of a blue giant) if we had two blue giants in the sky instead of the Sun?

4 answers  ·  posted 8y ago by ballah‭  ·  last activity 4y ago by ballah‭

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Q&A Simulating gravity in a gravity-less universe

In my fantasy universe, there is a disc-shaped world that has a flat surface that has roughly the same atmosphere as Earth (see this); the atmosphere moves along with the world. There is no gravity...

4 answers  ·  posted 4y ago by mario_sunny‭  ·  last activity 4y ago by mario_sunny‭

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Q&A How much energy would opening a worm hole require approximately?

I'm building a story about a world where it has been discovered how to travel to any possible universe according to the many-worlds interpretation, and there's a company which is in charge of sendi...

3 answers  ·  posted 6y ago by user2638180‭  ·  last activity 4y ago by user2638180‭

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Q&A What should the size of my moons be?

(Not entirely sure if this is the right place to ask this but hopefully I'm right!) I'm writing a novel and the planet this novel takes place on has two, twin moons of approximately the same size....

3 answers  ·  posted 4y ago by doplin‭  ·  last activity 4y ago by doplin‭

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Q&A Looking for ideas for a world that requires some earth based mineral to be released into its atmosphere to render it non toxic to life as we know it,

Im busy wrtiting a Space Opera and was going to utilise the "hypothesis", or whatever you call it of an ancient civ mining gold here and utilising it to disperse into its atmosphere, in turn either...

2 answers  ·  posted 4y ago by Skyhigharteist‭  ·  last activity 4y ago by Skyhigharteist‭

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Q&A Swimming in the rain?

This question is inspired by salmon swimming up waterfalls. I am aware that it is an entirely different thing, but I felt that it was worth mentioning in understanding the question. "What would ne...

5 answers  ·  posted 5y ago by JustSnilloc‭  ·  last activity 4y ago by JustSnilloc‭

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Q&A What sort of habitats could exist Pre-Zanclean Flood which formed the Mediterranean Sea?

There is a lot of information on drying up a Mediterranean sized depression. However, there is not a lot of information on drowning such a large area or what sort of habitats could exist before the...

1 answer  ·  posted 5y ago by EveryBitHelps‭  ·  last activity 5y ago by EveryBitHelps‭

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Q&A What could be the energy source of a sentient, supermassive biological entity on an ocean planet?

In exploring the xenobiology and design for an entity (Entity X) in my fictional universe, I wanted to raise the viability of an organism that is so massive, it is visible from the planet's upper a...

1 answer  ·  posted 5y ago by frishi‭  ·  last activity 5y ago by frishi‭

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Q&A How would lower gravity affect aging in humans?

Aruani is a planet that possesses a fifth of the gravity of the Earth. Humanity migrated to this planet 6,000 years ago and terraformed it to make its atmosphere suitable for human life. Would it a...

1 answer  ·  posted 5y ago by JAMS‭  ·  last activity 5y ago by JAMS‭

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Q&A Consequences of a completely friction less surface with gravity like moon

In the year 2588, ISRO (Indian Space Research Organization) along with collaboration of NASA had discovered a new planet named Accio several light years farther than Pluto. Scientists have computed...

2 answers  ·  posted 6y ago by Karan Desai‭  ·  last activity 5y ago by Karan Desai‭

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Q&A What would it be like to live on a rapidly rotating planet?

On Earth we don't really notice many effects of the Earth spinning, apart from the day-night cycle. It took a long time for people of Earth to realise that it even was spinning, but there are measu...

4 answers  ·  posted 6y ago by SpoonyBard‭  ·  last activity 5y ago by SpoonyBard‭

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Q&A What stars and composition of gases should my planets have to have a sky for each colour in the rainbow?

There are seven planets, and each one has a different coloured sky. One has red, one has orange, all the way up to indigo and violet. Of course, they don't have a sky this colour all the time, but ...

2 answers  ·  posted 5y ago by Piomicron‭  ·  last activity 5y ago by Piomicron‭

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Q&A Is this fictional planet possible?

I was trying to make an interesting moon of a gas giant similar to Jupiter with a liquid ocean of water. The moon orbits in the equivalent orbital space of Io and is about twice the size of Mars. T...

1 answer  ·  posted 5y ago by VenusUberAlles‭  ·  last activity 5y ago by VenusUberAlles‭

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Q&A What if an Earth-like planet had no axial tilt? (impact on ecosystem)

The Premise The Earth rotates on its own axis, which is tilted by about 23 degrees. The setting for my fantasy novel is an earth like planet without the axial tilt, all other factors remaining co...

5 answers  ·  posted 8y ago by Ambarish Sathianathan‭  ·  last activity 5y ago by Ambarish Sathianathan‭

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