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Q&A How to cross the Earth's core in a straight line

My superhero generates a force field which lets him and his equipment sustain the extreme conditions found inside the Earth. He decides to travel from the Geographic North Pole to the Geographic So...

3 answers  ·  posted 6y ago by user53220‭  ·  last activity 6y ago by user53220‭

Question reality-check earth
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Q&A Can A Theia-Like Object Make Earth Richer?

Let's start with a little backstory--our planet underwent an impact-coalescence cycle only once, 4.5 billion years ago, when a Mars-sized object named Theia destroyed the infant Earth in a glancing...

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

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Q&A All the Radioactive Metals Inside Earth's Core--How Would They Affect Convection?

In relation to a recent question of mine, this alternate Earth still has its core consisting of 84% iron, but the other 16% contains the greatest concentrations of all known species of heavy metals...

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

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Q&A Are there currents in space? Space flotsam?

You know how there are some beaches in the world where tons of sea glass or other random sea trash washes up, just because the currents and the shape of the land naturally collects it all there? I ...

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

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Q&A What profession would a person with super-immunity benefit have advantages in?

In my fictional world, we have our John Doe (main character), an ordinary man who happens to be given a drug in the initial stage of testing that gives the user super-human immunity to biological v...

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

Question biology society
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Q&A How can my creature keep sand out of its mouth?

Excerpt from the great Dalian Holy Book "The Dark God, the Tayan, was first formed when the gods above sent a curse down to the surface, to remind our people of our dependence on our gods. If the ...

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

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Q&A Effects of Hot Jupiters on habitable planets

Essentially, I'm designing a solar system for form of alien life. For the sake of ease, the star is roughly similar to the Sun, and the habitable planet follows an orbit anywhere between Earth and ...

2 answers  ·  posted 6y ago by N Francis‭  ·  last activity 6y ago by N Francis‭

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Q&A Viability of Scansoriopterygid wyverns

Scansoriopterygidae was a family of theropod dinosaurs that lived during the Jurassic, the most well-known member of which was Yi Qi. They are thought to have been arboreal insectivores, and conver...

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

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Q&A Is it possible for a naturally occuring star system to have 120 planets?

In my book series (link here), there is a star system at the northern edge of the galaxy called the Ryu system. I am planning for this star system to be huge, encompassing 120 planets. The vast m...

4 answers  ·  posted 6y ago by The Weasel Sagas‭  ·  last activity 6y ago by The Weasel Sagas‭

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Q&A A planetary region with no night and no tidal locking?

Without tidal locking, would it be possible to have a planet with a region roughly the shape and size of the USA and Canada in which it is always "day"? (By day I mean at least as bright as a clear...

5 answers  ·  posted 6y ago by Xandar The Zenon‭  ·  last activity 6y ago by Xandar The Zenon‭

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Q&A Is it possible to rule a galaxy without mastering teleportation?

I would like to know if a very advanced civilisation could rule an entire galaxy without mastering teleportation or any other method that allows traveling faster than light (unless you give mathema...

14 answers  ·  posted 6y ago by user53220‭  ·  last activity 6y ago by user53220‭

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Q&A Can corals build faster than the ocean takes away?

Setting In a tropical shore, where a great river empties into the sea, there is a zone of very high tides. The water level rises and falls by meters every day. In this challenging ecosystem, alter...

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

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Q&A Could an intelligent race of seals craft tools effectively?

A while ago, I asked a bunch of questions about my alternate Earth timeline, which contains plausible fantasy creatures. One of the concepts I've devised more recently is a solution for mermaids (M...

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

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Q&A How to have high tides in the tropics?

The Bay of Fundy sees the world's highest tides, with ocean water advancing and withdrawing as much as 20 meters or more within a single day. Here is a list of the 50 tidal stations around the wo...

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

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Q&A How to calculate rainfall; record highs

There are numerous programs and resources that can be used to ascertain pretty exactly the average temperature and general climate of a region. But is there any way to get a quantitative estimatio...

2 answers  ·  posted 6y ago by Antarctica07‭  ·  last activity 6y ago by Antarctica07‭

Question climate
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Q&A Feasibility of electrically heated steam engine

I was looking into the Dobles of years past after watching videos of Jay Leno's Doble E-20 and was trying to imagine how one could make the steam car a viable competitor to EVs and obviously one of...

6 answers  ·  posted 6y ago by Blake‭  ·  last activity 6y ago by Blake‭

Question steampunk vehicles
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Q&A Geostationary moon

My planet is very Earth-like with a day length of 26.87h. The moon has a radius of about 1550km, a mass of $5.2\times10^{22}$ kg and orbit 45500 km from the center of planet. My scenario is that t...

1 answer  ·  posted 6y ago by Jean-Abdel‭  ·  last activity 6y ago by Jean-Abdel‭

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Q&A How would a Mars colony living in a giant dome protect against rapid decompression?

Giant dome concepts are beautiful, but I can't help but wonder how they could be so fragile. If there is even the tiniest rip, the whole thing would rapidly decompress. How would you protect agains...

8 answers  ·  posted 6y ago by Programmer4Life‭  ·  last activity 6y ago by Programmer4Life‭

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Q&A Terraformed planet orbiting a blue star

A planet was terraformed in humanity's distant past by technologically superior beings. The planet is very similar to Earth. I understand blue stars are highly radioactive and thus don't have real ...

1 answer  ·  posted 6y ago by Nipiti Splix‭  ·  last activity 6y ago by Nipiti Splix‭

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Q&A How can a remote planet with little to no sunlight have high wind speeds?

I saw this question here: Can I have wind turbines on my base? and someone else asked about how the planet can have 60-100mph winds without very much sunlight to cause the energy differential, to w...

6 answers  ·  posted 6y ago by J0hn‭  ·  last activity 6y ago by J0hn‭

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Q&A How would flora be affected by longer night than day cycle?

Night/Day Cycle I'm trying to make a fantasy world with a longer night cycle than day. With the advice of Renan, 12 hours of proper night, 4 hours of near/partial dark and 8 hours of good light....

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

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Q&A Would this simplex ternary system be stable?

I'm trying to make a trinary star system but I'm not sure how it would work. The primary star is an M0Ve star (red dwarf flare star). The orbits of the other two stars are slightly more complicated...

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

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Q&A How can a portal that connects two planets affect the environment?

In my world there are two planets within the same solar system, which are connected approximately every seven cycles through a portal that opens for a few days. The planets are very similar. The ...

11 answers  ·  posted 6y ago by Hedufigo‭  ·  last activity 6y ago by Hedufigo‭

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Q&A What type of acid could burn through skin and any type of metal?

This is my first time using this site and i'm excited to get answers to roadblocks that have prevented me from finishing my writing in the past. However, you may have to excuse some mistakes I make...

2 answers  ·  posted 6y ago by Anti-Logic‭  ·  last activity 6y ago by Anti-Logic‭

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Q&A How long does a derelict spaceship last in orbit?

This is the premise: the occupants of a spaceship die hundreds of millions of years in the past orbiting above a Earth-sized planet. It has a supercomputer that allows the ship to still fire its ro...

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