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Q&A

Posts tagged earth

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Q&A Could a Spaceship Enter/Exit the Atmosphere Without Landing

Would it be possible for a spaceship of some sort to descend from space and through the atmosphere of an Earth-like planet, not land, then turn around and head back into space? In other words, coul...

9 answers  ·  posted 7y ago by C. S. Wright‭  ·  last activity 6y ago by C. S. Wright‭

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Q&A What technology could enable silent communication?

Has a device been invented that can lower a person's voice by various decibels (as in the loudness of their voices)? This would be to enable silent communication as in whispering at a much lower ra...

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

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Q&A Can hydroponics and aquaponics replace traditional agriculture on the village level where soil is eroded?

I'm working on a post-apocalyptic desert scenario in the near future where people live in small, loosely connected communities that trade with each other on a small scale and might have agreements ...

5 answers  ·  posted 6y ago by H3R3T1K‭  ·  last activity 6y ago by H3R3T1K‭

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Rigorous Science Contamination of orbital warehouses

So I'm thinking about orbital warehousing of raw materials but I'm wondering whether one would actually need an orbital structure to store the goods inside or could you just strap a booster to the ...

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

Question space earth
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Q&A What would cause a deep vertical gorge in a mountainside, on Earth?

I'd like earthquakes to cause deep gullies along some mountainsides of my planet. Here on earth, vertical fault scarps can form from earthquakes, but the examples I see online tend to be less gully...

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

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Q&A Lighter-Than-Air Bridge Technology

Imagine a very long bridge (Visbi Bridge - named after the designer) across an immense canyon - really almost a wide deep gorge -use on an earth-like world. My concept is that part of the support o...

8 answers  ·  posted 9y ago by clarkland‭  ·  last activity 6y ago by clarkland‭

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Q&A What is the smallest change that would allow an Earth-like planet to have atmospheric COâ‚‚ levels of several percent?

Start with a planet just like Earth as of today (whatever today means when you are reading this). For simplicity's sake, disregard mankind's continuous spewing of greenhouse gases into the atmosphe...

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

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Q&A How many moons can form around this alternate Earth?

Say in an alternate timeline, Earth developed with more moons. Many, many many more moons. In fact, it developed with the absolute maximum amount of moons a planet of its size and mass can physical...

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

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Q&A Is there a way to have coal but not oil?

Reading this answer I realized that for my purposes I don't really want a fully steampunk world. All I want is lack of cars and planes as we know them, and lack of oil, or inaccessible deposits of ...

10 answers  ·  posted 6y ago by Mołot‭  ·  last activity 6y ago by Mołot‭

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Q&A Plant/mineral that could preserve fresh meat without anything other than fire?

My character kills a goat in the mountains and eats some of it for dinner. What kind of plant or mineral could he use to preserve the meat to carry with him so that it stays fresh and doesn't becom...

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

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Q&A Can a human survive acceleration from 0 km/h to 310 km/h, and then back down to 0 km/h, all in 500 meters?

I have built a Tchou-Tchou 'hyperloop' wagon that reaches 310 km/h on a 500 meter test rail. One of my investor customers wants to try the Tchou-Tchou, but I am a bit concerned about his safety. T...

8 answers  ·  posted 6y ago by Drag and Drop‭  ·  last activity 6y ago by Drag and Drop‭

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Q&A Climates if Earth had large axial tilt (45 or 90 degrees)

Has anybody made any serious calculations of what the climates on Earth would be if our planet had a larger axial tilt? The most interesting are the cases of 45 and 90 degrees.

4 answers  ·  posted 7y ago by Milchar‭  ·  last activity 6y ago by Milchar‭

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Q&A Could life on earth survive after the sun becomes a white dwarf?

It's my first time writing an original story and I have this idea, but I don't know if it could be scientifically feasible. My story would be medieval fantasy with magic, but I wanted to add a twis...

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

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Q&A How can I tilt a planet's rotation axis?

The rotational axis of the Earth is slightly tilted now, but I would like to tilt it to 90° - something like Uranus has - and make the Earth rotate with one pole always facing one direction - eg. ...

8 answers  ·  posted 7y ago by RudolfJelin‭  ·  last activity 6y ago by RudolfJelin‭

Question planets earth
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Q&A What can prevent moderately advanced humans from driving megafauna to extinction?

The consensus (1, 2) is that the reason most continents have relatively few large animals compared to Africa is that humans, even stone age humans, were able to drive them to extinction. African a...

9 answers  ·  posted 8y ago by System‭  ·  last activity 6y ago by System‭

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Q&A A world with a moon orbiting much closer than ours

The world I am envisioning is a rocky planet with oceans, plate tectonics, atmosphere, and several other similarities to our globe. The mass and size is roughly equal, but its moon is orbiting much...

4 answers  ·  posted 9y ago by fantasia‭  ·  last activity 6y ago by fantasia‭

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Q&A Is planetary drill possible?

I was wondering would a planetary drill be possible? The drill should go inside the planet on one side and exit on the other. Would that kind of a drill be possible on Earth and if not on what kind...

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

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Q&A Why would a species of subterreanean worms consume metal?

In my latest draft, a worm-like species buries itself deep below the crust of their world and consumes/gathers tiny amounts of heavy metals. Can you think of any plausible reason why a wormlike cr...

7 answers  ·  posted 7y ago by System‭  ·  last activity 6y ago by System‭

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Q&A Could rare earth (REE) strata form as magmatic cumulates?

I'm building a mining colony world with large mine-able deposits of rare earth elements (REEs). One source of REEs on Earth is alkaline carbonitite magma. On Earth, I believe, it is thought to be d...

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

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Q&A How to calculate maximum altitude difference between metro stations?

For story purpose I am trying to design a mass transit system for a perfect city. Right ... maybe not so perfect, if you look carefully into the details, but actually the mass transit system is sup...

2 answers  ·  posted 6y ago by Shadow1024‭  ·  last activity 6y ago by Shadow1024‭

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Q&A Is a 1:1 Earth possible in a binary system?

I'm trying to build as close to a 1:1 Earth as possible, but finding information on a non-jovian moon-based planet is extremely hard to find. I tend to ramble trying to explain things in a non-list...

4 answers  ·  posted 6y ago by 1312412‭  ·  last activity 6y ago by 1312412‭

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Q&A Effect of impact of a pure gas comet?

I'm not even sure if gas comets can exist naturally -- feel free to comment on that in the answers. But assume that somehow a large block of frozen hydrogen/helium/oxygen/nitrogen is tumbling throu...

4 answers  ·  posted 7y ago by SRM‭  ·  last activity 6y ago by SRM‭

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Q&A What can temporarily disrupt Earth's magnetosphere?

I'm trying to find some type of space weather or other natural occurrences that would result in the intensity of Earth's magnetic field dropping for a few hours to maybe a week or two at most. Pola...

2 answers  ·  posted 6y ago by C. Hess‭  ·  last activity 6y ago by C. Hess‭

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Q&A Plant and Animal Life in a Taller Tibet--Possible or Not?

Back home, the Tibetan Plateau averages 4,950 meters above sea level with its highest point being Mount Everest, 8,848 meters--29,029 feet--above sea level. At such heights, problems are resulted ...

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

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Q&A How could a human civilization have happened to live underground, in Antarctica?

Let's assume a human civilization have been living for centuries, nay millennia, in a very large cave, not too deep under Antarctica - deep enough not to freeze, but shallow enough not to die becau...

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

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Q&A If Earth spin decreased, how can I get it spinning faster?

The question Could we still live if Earth's spin speed slowed down by 90% assumed Earth's spin speed slowed down by undefined human activities (as if climate change was not bad enough). One answer ...

12 answers  ·  posted 9y ago by Peter M. - stands for Monica‭  ·  last activity 6y ago by Peter M. - stands for Monica‭

Question physics earth
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Q&A Is there a scientifically valid explanation for a circle of islands?

A couple friends and I have started a world called Lothaucan. On this world there is a continent called Novara with a circle of islands as its key feature. (seen in the mid-left of the image) I...

9 answers  ·  posted 7y ago by Elvesflame‭  ·  last activity 6y ago by Elvesflame‭

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Q&A If Earth was tidally locked to the sun, where on the surface would the climate be mildest or most hospitable?

This is specifically about the climate, and where on the planet it would be mildest. Imagine Earth, rotating at the usual distance from the sun. Except, it is tidally locked to the sun; a so-calle...

5 answers  ·  posted 6y ago by Fred the John‭  ·  last activity 6y ago by Fred the John‭

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Q&A How could a planet have plate tectonics but zero or weak earthquakes?

How could an earth sized and broadly / liberally earth-like planet have plate tectonics but still experience zero or weak / little earthquakes? How can I have the weakest earthquakes possible while...

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

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Q&A Climate conditions and/or atmospheric changes required for the Everboom

Relating to this question: Ensuring an endless war, and an endless stalemate In a planet such as our Earth, what climate conditions and/or atmospheric changes would be required for the formation a...

2 answers  ·  posted 7y ago by Nahshon paz‭  ·  last activity 7y ago by Nahshon paz‭

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Q&A The Moon has a magnetic field instead of the Earth; what are the changes in navigation?

I'm curious as to what the implications to any navigation system are: ship trekking aviation etc. Will their compass change shape (as being spherical), or might they dump the compass alltogeth...

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

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Q&A Climate disturbance after flying islands appeared in the sky?

2017, flying islands just appeared in the sky. Different places in the world, different sizes. The biggest one is about the size of the Corsica french island. They have similar ecosystem than Eart...

1 answer  ·  posted 7y ago by BorisDaBlade‭  ·  last activity 7y ago by BorisDaBlade‭

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Q&A Are these conditions for a planet realistic?

Since I'm creating a "new world" for my story, I wanted to know if the following conditions would work for an Earth-like planet: Its moon (more or less same size as our moon) being much closer (...

4 answers  ·  posted 7y ago by C. Marshall‭  ·  last activity 7y ago by C. Marshall‭

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Q&A Mobile phone with tower independent long distance communication features

Tech level: more or less comparable to contemporary. Location: forsaken, habitable planet with population of approximately 10-20 milion. Wealth level: first world equivalent Covering capital, ma...

6 answers  ·  posted 7y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭

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Q&A If the earth spun the other way, what would be different?

Assuming it just spins at the same rate, the other way. Axial tilt is the same, year length is the same. Perhaps winds and ocean currents? What would the effect be on geography? Would deserts or r...

3 answers  ·  posted 7y ago by Carlos‭  ·  last activity 7y ago by Carlos‭

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Q&A Air routes around a "hurricane eye" on a tidally locked planet

On a tidally locked Earth-like planet a big part of long distance air routes would have to approach the hurricane eye and some may even benefit from it. On Earth aircraft are able to save time and...

2 answers  ·  posted 7y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭

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Q&A What is this bacteria producing that is so sickly yellow?

An illness has been slowly spreading throughout the inhabitants of my agrarian society, decimating villages. The first sign of infection is the excessive production of slimy yellow saliva, and sinc...

1 answer  ·  posted 7y ago by System‭  ·  last activity 7y ago by System‭

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Q&A Is there any way to tidally lock Earth to the Sun in its current state?

I've been toying around with the idea of a tidally locked Earth. Spent the better majority of today figuring out weather patterns, habitable zones, etc, but I missed one big detail: How the hell di...

4 answers  ·  posted 7y ago by wollington‭  ·  last activity 7y ago by wollington‭

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Q&A An epidemic kills all plant-life on Earth. What would happen to the fauna? Is there some realistic time-line when happens what?

I was wondering what would happen to life, when an infamous epidemic plague would be able to infect and kill any imaginable plant, be it on land or in the waters. Would the lack of oxygen eventual...

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

Question earth-like earth
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Q&A Could intelligent life on Earth have been seeded by precursor aliens?

This idea comes up quite frequently in science fiction, but there has not been a question about it yet on Worldbuilding.SE. Is it possible that intelligent life was brought to Earth by an alien ci...

5 answers  ·  posted 9y ago by bazola‭  ·  last activity 7y ago by bazola‭

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Q&A What would an Antarctica without ice look like compared to other continents?

Lets suppose that Antarctica at some point lost most of its ice (due to global warming or some other plausible reason) and now most of its bedrock surface is exposed. Compared to other continents,...

4 answers  ·  posted 9y ago by Notaras‭  ·  last activity 7y ago by Notaras‭

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Q&A Sky Color on a planet orbiting binary stars

Here is the situation. A planet fairly similar to Earth is orbiting binary stars, one O or B type and one F type. Sometimes the stars are close together in the sky, sometimes far apart, sometimes o...

1 answer  ·  posted 7y ago by Arget‭  ·  last activity 7y ago by Arget‭

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Q&A Swapping the sunny side of tidally locked planet

For story reasons I need a situation with a planet around red dwarf, which already has had the equivalent of a Great Oxygenation Event. Simultaneously I also like the planet to be mostly without ac...

3 answers  ·  posted 7y ago by Shadow1024‭  ·  last activity 7y ago by Shadow1024‭

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Q&A What kind of star should I use for my world?

If I want an Earth-like planet, what kind of star can I use to achieve that ? According to the Harvard stellar classification, our Sun is a G-class star. The best would be to have: Temperature ...

5 answers  ·  posted 9y ago by Vincent‭  ·  last activity 7y ago by Vincent‭

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Q&A How would our sky look like 100 million years in the future?

Right, you are standing on Earth 100 million years in the future and observing the sky. What would you see during night and how would a day look like when you look up. Weather is not relevant (no c...

2 answers  ·  posted 7y ago by Raven‭  ·  last activity 7y ago by Raven‭

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Q&A Earth's rotation stopped

Let's say through some magic or other, the Earth's spin came to a halt (to the point that the same side now always faces the Sun) How would this process feel? Obviously it would depend on how long...

4 answers  ·  posted 9y ago by colmde‭  ·  last activity 7y ago by colmde‭

Question physics geology earth
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Q&A How can we have dragon-sized butterflies?

I'm writing a species of dragon-sized butterflies¹ as flying mounts into a low-magic fantasy setting², and would like to know if these creatures have to be imbued with magic, or if they could jus...

10 answers  ·  posted 7y ago by System‭  ·  last activity 7y ago by System‭

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Q&A How high can a city be built on a mound in a flood plain?

This is a followup to this question about city building on flood plains. There is a civilization that developed along the rich varzea flooded forests of an enormous rainforest river, larger than ...

2 answers  ·  posted 7y ago by kingledion‭  ·  last activity 7y ago by kingledion‭

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Q&A Terraforming a low oxygen Earth-like planet

My colonists have been terraforming a planet for centuries. They chose this exo-planet for its many earth-like qualities (size, gravity, Goldilocks zone, volcanos, similar sun). However, it is like...

2 answers  ·  posted 7y ago by Mazel‭  ·  last activity 7y ago by Mazel‭

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Q&A Weather effects of the Snakebot of Doom

While asking another question about Jormungandr, the Snakebot of Doom, a point was made that it is so big and hot that it might produce its own weather effects. To that end: Jormungandr is 446 me...

1 answer  ·  posted 7y ago by Monty Wild‭  ·  last activity 7y ago by Monty Wild‭

Question weather earth