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Rigorous Science

Posts tagged earth

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Q&A Possible sky colors compatible with life on earth

This question has been asked in similar forms on this site already with some good answers like here: What Color Can the Sky Be? How could the sky be orange in a breathable atmosphere? What woul...

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

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Q&A Determining factor(s) for making creatures robust to square cubed law

Premise and research I am simply trying to find a reproducible framework for use with creature-design. In my research I have found the larger an animal is, the more likely that animal is to break ...

1 answer  ·  posted 5y ago by Arash Howaida‭  ·  last activity 5y ago by Arash Howaida‭

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Q&A What if the earth was turned physically inside out?

Let's say some magic aliens come and prank us. They, in one step, remove out the innards of the earth, and put everything on the surface on the inside. They make some artificial gravity so we stay ...

3 answers  ·  posted 9y ago by PyRulez‭  ·  last activity 5y ago by PyRulez‭

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Q&A Gravity on a hollow non-enclosed world

The normal condition of life in a planet (Earth right now) is that below us is the planet's core, and above us is the sky. Now if there's a hollow planet like above, is that possible? How does ...

7 answers  ·  posted 7y ago by Hariz Rizki‭  ·  last activity 5y ago by Hariz Rizki‭

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Q&A Spotlight distribution in a hollow earth?

I've been toying with a concept for a hollow/inner Earth universe in which I would like to achieve an even distribution of light. The pickle is that the "sun" of this world operates like a beacon/s...

4 answers  ·  posted 6y ago by C. Waldo‭  ·  last activity 5y ago by C. Waldo‭

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Q&A If the Earth was part of an ultimate solar system, what would the sky look like?

I once show a picture depicticting the idea of an ultimate solar system: Image Copyright Sean Raymond In this solar system there are 8 planetary orbits, each containing 52 equal-mass, evenly-spa...

1 answer  ·  posted 5y ago by ΓΙΑΝΝΗΣ ΜΙΧΑΗΛΙΔΗΣ‭  ·  last activity 5y ago by ΓΙΑΝΝΗΣ ΜΙΧΑΗΛΙΔΗΣ‭

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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 5y ago by Neto Ananias‭  ·  last activity 5y ago by Neto Ananias‭

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Q&A Can trees and plant life grow on rock?

So I'm creating a world where the ground is mainly made of different rocks and stone in most areas - soil is sparse. Could trees and plant life grow on the stone ground if a water source is nearby...

3 answers  ·  posted 5y ago by Isra‭  ·  last activity 5y ago by Isra‭

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Q&A How tall can you build a mountain chain of bricks?

My ancient golden dragon has a lot of time, since he doesn't die of old age in my world, and a lot of magical constructs that will tirelessly built a defensive mountain chain for him. This chain w...

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

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Q&A What mechanisms need to be in place for an advanced, peaceful society to retain high testosterone levels?

While by no means a smoking gun, there is still a reasonable amount of empirical evidence on the notion that socialization and testosterone are negatively correlated. Archaeological Evidence Fro...

10 answers  ·  posted 5y ago by Arash Howaida‭  ·  last activity 5y ago by Arash Howaida‭

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Q&A How can I make raindrops bigger?

I've got an intelligent humanoid species living on a planet very similar to Earth's. However, on this planet, rainstorms are more frequent and slightly... different. Each raindrop is at least an in...

7 answers  ·  posted 5y ago by Dubukay‭  ·  last activity 5y ago by Dubukay‭

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Q&A Technology for a sci-fi airship

Sometimes old, discredited or impractical ideas come back to favor, because a new technology has evolved. Let us imagine a future Earth-like world (not early 20th century or steampunk) that would ...

9 answers  ·  posted 6y ago by fralau‭  ·  last activity 5y ago by fralau‭

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Q&A How long will it take for the amount of living to exceed the dead population?

The current world population is around 7 billion living people and 107 billion dead people. Since the population is increasing steadily and faster than ever, I was wondering if we could ever reach ...

9 answers  ·  posted 7y ago by roberrrt-s‭  ·  last activity 5y ago by roberrrt-s‭

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Q&A What would the effects be on a earth-like planet if the magnetic field was much stronger

The hypothetical world is for all intents and purposes earth or very close to it. So what would the effects be if the magnetic field were either stronger from the start of the planet, or if the ma...

3 answers  ·  posted 9y ago by Vakus Drake‭  ·  last activity 5y ago by Vakus Drake‭

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Q&A Earth tilt changes due to space launches

How many rocket launches are needed to change the axial tilt of the Earth so much that it is noticeable with instruments available today? We can assume that we are talking about the heaviest rocke...

1 answer  ·  posted 5y ago by Razvan Socol‭  ·  last activity 5y ago by Razvan Socol‭

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Q&A Does my plot point centered around eclipses make sense?

My main antagonist is an infant Great One that's been imprisoned below the Moon's surface and I want its influence and physical form to have a weakness to direct sunlight which, I think, gives me a...

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

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Q&A Creating a gas-giant based empire, how can I maximize the amount of Earth-sized habitable worlds around a gas giant?

As the title says. I need to have at least 3-5 habitable Earth-gravity worlds (preferably with atmosphere, nitrogen oxygen) as many smaller, lifeless moons as possible, and a planetary ring. (i.e. ...

1 answer  ·  posted 6y ago by Armok‭  ·  last activity 5y ago by Armok‭

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Q&A Let's plot a course between Earth and Gor

We know that Gor, or Counter-Earth, is not stable in a long-term sense. Let's handwave that away, or assume that we are dealing with a temporary span of time in which the instability is immaterial....

3 answers  ·  posted 5y ago by Columbia says Reinstate Monica‭  ·  last activity 5y ago by Columbia says Reinstate Monica‭

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Q&A How might a naturally-occuring geographical barrier between two areas *suddenly* become permeable so that a few people can cross it?

The world is Earth, probably west coast of the USA, in the throes of severe climate disaster; major storms, earthquakes, droughts, fires and floods are the norm. I am looking for a way to suddenl...

4 answers  ·  posted 5y ago by olive banks‭  ·  last activity 5y ago by olive banks‭

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Q&A What would happen if the Earth struck a tiny but immovable object

We are living on this big lump of rock called the Earth, drifting ever so continuously through space. Now imagine a tiny but immovable object in space, a single atom of 'unexplanium', locked in sp...

11 answers  ·  posted 6y ago by Martijn‭  ·  last activity 5y ago by Martijn‭

Question space physics earth
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Q&A What's the highest population the Earth could possibly sustain?

Suppose that we pare down human consumption to a minimum survivable level across the Earth, and devote the entire surface of the planet (as well as the planet's interior, if needed) to support as m...

6 answers  ·  posted 9y ago by ckersch‭  ·  last activity 5y ago by ckersch‭

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Q&A Purple soil - how would it be possible?

For one of my projects, I'm developing an inhabited Earth-like world, with the key visual difference being that much of the land is purple, instead of the brownish colour it is on Earth. My questio...

13 answers  ·  posted 6y ago by F1Krazy‭  ·  last activity 5y ago by F1Krazy‭

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Q&A Can someone help me with ocean currents? I'm really confused

I've been working on a constructed world which started out as the home of an alien race from a sci-fi story I'm writing but just became a pure world building project. As you can see from the map i...

1 answer  ·  posted 5y ago by Automatic Utopian‭  ·  last activity 5y ago by Automatic Utopian‭

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Q&A How to create the eternal storm?

The Great Red Spot on Jupiter and the numerous Great White Spots on Saturn are storm systems that encircle the globes and last for decades, centuries in Jupiter's case. These are formed on Gas Gian...

4 answers  ·  posted 7y ago by EveryBitHelps‭  ·  last activity 5y ago by EveryBitHelps‭

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Q&A Barring all structural and stability issues, how would building a ringworld around the earth affect it?

I've looked for an answer for this, but the only information I could find dealt with the ring itself. All I want to know is what would change on the Earth if all problems were solved and the ring w...

5 answers  ·  posted 5y ago by offworldavengercorp‭  ·  last activity 5y ago by offworldavengercorp‭

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Q&A Extreme adaptation: evolutionary narrative for Vantablack-like skin pigment

Premise Inhabiting my earth-like world will be humanoid beings that have a skin tone that is as dark as Vantablack. Let's assume these human-like beings share the same ancestry as humans and we ca...

7 answers  ·  posted 5y ago by Arash Howaida‭  ·  last activity 5y ago by Arash Howaida‭

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Q&A How to make a bigger planet be as similar to Earth as possible

My fantasy world is slightly larger than earth so that discovery of the continents becomes harder (about 20% surface should do it). But at the same time I want to preserve most aspects to make it l...

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

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Q&A Effects of a non-rotating Earth

Earth has stopped rotating. Maybe Superman started flying around the Earth backwards to turn back time, but hit a wall of kryptonite just when the Earth stopped rotating. Or Stupendous Man hit the ...

3 answers  ·  posted 9y ago by Seth‭  ·  last activity 5y ago by Seth‭

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Q&A What natural event could strip all of Earth atmosphere?

I was reading up on Mars thin atmosphere and was wondering how could Earth becomes like the red planet except it only has only 100 pascal (air pressure) at imaginary sea level? Mars is 600 pascal o...

5 answers  ·  posted 5y ago by user6760‭  ·  last activity 5y ago by user6760‭

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Q&A Brain-construct

I am currently reading an eternal golden braid, i've gotten as far as several lengthy chapters about the brain. He talks about neurons and symbols, what 'meaning' is and there is a lot of hypothe...

2 answers  ·  posted 6y ago by Adam‭  ·  last activity 5y ago by Adam‭

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Q&A How could I make a portal to parallel universes as scientifically realistic as possible?

[Edit: I'm not looking for 100% realism. I'm looking for an explanation as realistic as possible, possible with just few exceptions to physics.] [Edit 2: In my imagination these worlds are differe...

7 answers  ·  posted 7y ago by Darcera‭  ·  last activity 5y ago by Darcera‭

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Q&A Near spherical alien species - How can they move?

The setting On an Earth-like planet but with completely different flora and fauna there is the Great Plain. It is similar in size to the Serengeti National Park on Earth. The Plain is surrounded b...

1 answer  ·  posted 5y ago by chasly from UK‭  ·  last activity 5y ago by chasly from UK‭

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Q&A How would a civilization that has been living on a "cube" Earth differ from one on a "spherical" Earth?

Another question based off of this one here. Let's say on a cube styled Earth-like planet, there was a similar race to humans. If the differences in the planets were minimal (besides, you know, the...

5 answers  ·  posted 9y ago by Shadow Z.‭  ·  last activity 5y ago by Shadow Z.‭

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Q&A How long for Life on Earth to disappear after the magnetic field is gone?

Evil Wizard got his hands on a Handwavium Wand, and wished the Earth's magnetic field no more. Now the surface is vulnerable to solar wind, solar radiation and cosmic radiation. How long will it ...

3 answers  ·  posted 7y ago by Mindwin‭  ·  last activity 5y ago by Mindwin‭

Question earth
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Q&A Can fiber optic cables be used to pipe sunlight into an underground bunker for growing plants?

One major problem with living underground is you lose all of that wonderful energy provided by the sun. This energy is useful for many things including growing plants for food. A window is effectiv...

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

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Q&A How much does the ecosphere weigh?

So, we've gone off to another star system and decided to build a Dyson bubble--a continuous statite, supported by radiation pressure, surrounding a star--with a surface gravity of 1g to live on. N...

1 answer  ·  posted 5y ago by Logan R. Kearsley‭  ·  last activity 5y ago by Logan R. Kearsley‭

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Q&A Can we build a world in 1,000 years?

We have a fleet of sub-light speed generation ships and associated engineering devices/ships. Their original world can no longer support their species, and they must move to survive. The fleet of c...

12 answers  ·  posted 7y ago by System‭  ·  last activity 5y ago by System‭

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Q&A Can an earth-like world lack mineable iron?

This question is pretty straightforward. I would like to build an earth-like world in which humans don't have access to iron, or at least can't mine any prior to full scale industrialization. They ...

9 answers  ·  posted 6y ago by Random‭  ·  last activity 5y ago by Random‭

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Q&A A Planet Where The Four Seasons Occur Multiple Times In One Year?

Earthlings, I live on a world where most places on my planet has four seasons, just like yours does. We also have one sun and one moon, presumably. It's been not even a year since I came of age (2...

6 answers  ·  posted 5y ago by Sora Tamashii‭  ·  last activity 5y ago by Sora Tamashii‭

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Q&A How to navigate a ringed planet at night?

I'm working on a story set in an Earth-like world but with rings (say, proportionately similar to Saturn's). I'm trying to get a solid handle on how these rings would affect the sky. For the purp...

3 answers  ·  posted 5y ago by Luminocity‭  ·  last activity 5y ago by Luminocity‭

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Q&A Compass on a Ringed, Earth-like Planet

Is it necessarily a given that a compass (as they magnetically function on Earth) could be made to function similarly on an alternate, Earth-like, ringed planet? Another way of asking: is it feasi...

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

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Q&A What requires more destructive energy? Destroying a planet or splitting a planet in half

I just wanna ask which option requires more destructive energy? Option 1 : destroying a planet like earth to rubble (tiny pieces of rocks) Or Option 2: splitting a planet like earth in halves ...

5 answers  ·  posted 5y ago by Hajhar‭  ·  last activity 5y ago by Hajhar‭

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Q&A 3-Level Roadway Engineering

I'm the city designer for a new city we're calling Morrowville. Having some of the worlds top minds, flying cars have been invented, but can only fly a few feet (2-4) from the ground and not everyo...

2 answers  ·  posted 5y ago by Anoplexian - Reinstate Monica‭  ·  last activity 5y ago by Anoplexian - Reinstate Monica‭

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Q&A A Frozen Metropolis

Scientists have discovered an Earth-like planet in another solar system, with the same gravity, atmosphere composition, etc, and they decide to colonize it. There is only one problem, though. It is...

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

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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 8y ago by thatgirldm‭  ·  last activity 5y ago by thatgirldm‭

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Q&A How to explain the presence of a dense debris field around Earth?

I'm creating a sci-fi world similar to ours roughly 50 years in the future. Unobtanium, a futuristic metal and fuel source, was discovered in 2020. Its broad utility led to rapid advances across al...

9 answers  ·  posted 5y ago by cinnamon18 supports Monica‭  ·  last activity 5y ago by cinnamon18 supports Monica‭

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Q&A How to survive for a day if everyone is trying to kill you

I saw this a while ago, and it has bothered me ever since. Imagine a world where you know everyone is going to go crazy in exactly one day. The entire world's population will try to find and kill ...

14 answers  ·  posted 7y ago by Camille‭  ·  last activity 5y ago by Camille‭

Question earth survival
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Q&A Could people survive on earth if a day lasted 100 years?

Imagine we took earth and slowed it down so that a day lasted 100 years, could humans (or any life) survive? Let's assume that there are no ill effects of slowing it down, no massive tidal waves, n...

5 answers  ·  posted 5y ago by BobtheMagicMoose‭  ·  last activity 5y ago by BobtheMagicMoose‭

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Q&A How long would people live in the US if an immortality treatment was available?

Very narrow question: assuming an immortality treatment keeping people at a biological age of a fit 30's, free of infections and cancers & ruling out death by aging, how long would people live ...

5 answers  ·  posted 9y ago by JDelage‭  ·  last activity 5y ago by JDelage‭

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Q&A How can Ganymede have an Earth-like gravity without us having realized it?

Imagine a small primitive humanoid civilization that developed independently in caves under the surface of Ganymede. We can assume there's enough light that filters through the crystalline surface ...

11 answers  ·  posted 5y ago by Admiral Jota‭  ·  last activity 5y ago by Admiral Jota‭