Communities

Writing
Writing
Codidact Meta
Codidact Meta
The Great Outdoors
The Great Outdoors
Photography & Video
Photography & Video
Scientific Speculation
Scientific Speculation
Cooking
Cooking
Electrical Engineering
Electrical Engineering
Judaism
Judaism
Languages & Linguistics
Languages & Linguistics
Software Development
Software Development
Mathematics
Mathematics
Christianity
Christianity
Code Golf
Code Golf
Music
Music
Physics
Physics
Linux Systems
Linux Systems
Power Users
Power Users
Tabletop RPGs
Tabletop RPGs
Community Proposals
Community Proposals
tag:snake search within a tag
answers:0 unanswered questions
user:xxxx search by author id
score:0.5 posts with 0.5+ score
"snake oil" exact phrase
votes:4 posts with 4+ votes
created:<1w created < 1 week ago
post_type:xxxx type of post
Search help
Notifications
Mark all as read See all your notifications »
Q&A

Posts tagged atmosphere

This tag doesn't have any usage information yet.

This tag doesn't have a detailed wiki yet.

50%
+0 −0
Q&A How would this super-earth world be? (Creature evolution)

I have a super-earth world. The surface of the world is shallower due to extra gravity, so shorter mountain ranges and less ocean depths. The world orbits a binary star system at a distance of the ...

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

50%
+0 −0
Q&A How thick does an atmosphere have to be in order to make the sky "light up" during "daytime" human or near human ocular sensitivity?

If a planet were to have a very thin atmosphere how thick or thin would it have to be to allow there to be a daytime and a nighttime given human or near human ocular sensitivity? In other words, ...

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

50%
+0 −0
Q&A Atmospheric mixing on walnut earth

Suppose we had an Earth-like planet based on Saturn's moon Iapetus. Iapetus has an equatorial ridge, 13 km high, which runs around it. Scaling that up to an Earth-sized planet, it would have a ridg...

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

Question atmosphere
50%
+0 −0
Q&A Reasons why air travel isn't feasible, but ground travel is?

My story takes place on an Earth-like, inhabited world that is far larger than Earth, has roughly 110% of Earth's gravity, and has unusually high (and generally unexplained) EM emissions permeating...

21 answers  ·  posted 6y ago by Brian Lacy‭  ·  last activity 5y ago by Brian Lacy‭

50%
+0 −0
Q&A Is it possible for any creature to stay on an altostratus cloud without falling down? what are its limits?

I am working on a story. i want to know if is it possible for creatures like snake, eagle, vulture to stay on an altostratus cloud without falling down. if possible the limits on how much force and...

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

50%
+0 −0
Q&A Reality Check: Planet with low gravity and water vapour

Using Artefaxian's excellent spreadsheet I have created a basic idea for my planet, but in the 'Stability Checker' part my low gravity planet is unable to hold H2O. I am wondering if it is possibl...

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

50%
+0 −0
Q&A How could bird people map the air?

For sentient avians, knowing the location and behavior of currents in the air would be vitally important. Jet streams, thermals, downdrafts, and shear layers would all be important in their daily l...

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

50%
+0 −0
Rigorous Science Is a balloon rocket launch pad possible?

Rockets consume a lot of fuel and carry not eough payload. To reduce the fuel needed, why not send it in the mesosphere? Imagine a big balloon, capable of carrying a small rocket to the mesosphere...

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

50%
+0 −0
Q&A Would the atmosphere of an alien planet with the following mixture of gases be breathable to humans?

35% O2 (oxygen) 61% Ar (argon) 1.07% CO2 (carbon dioxide) 0.93% As arsenic 2% Other trace elements On an exoplanet with a mass of 0.284 Earths and a surface gravity of .66 gs (6.44 m/s^2), would...

6 answers  ·  posted 8y ago by Z.Schroeder‭  ·  last activity 6y ago by Z.Schroeder‭

50%
+0 −0
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 6y ago by Skyhigharteist‭  ·  last activity 6y ago by Skyhigharteist‭

50%
+0 −0
Q&A How to keep this artificial water planet from evaporating or freezing?

Piggybacking on this question: Could soft matter infused with nano or pico sized magnets be used to clump together so that we could create environments with it? ...So we have a planet that has low...

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

50%
+0 −0
Q&A How would I transport an atmosphere?

An abandoned outpost from a long extinct race is discovered. It can easily be repaired and would make an ideal location for a colony, however it has been breached and any usable air has been long ...

6 answers  ·  posted 9y ago by Twelfth‭  ·  last activity 6y ago by Twelfth‭

50%
+0 −0
Q&A How does atmospheric density affect blunt force?

If one had three humanly habitable planets with the same gravity but different atmospheric densities due to composition, namely Earth, one with a denser atmosphere (about 1.5x as dense) one wit...

1 answer  ·  posted 6y ago by Not the letter A‭  ·  last activity 6y ago by Not the letter A‭

Question atmosphere
50%
+0 −0
Q&A Can you have reduced visibility (due to fog) but an atmosphere that is still breathable?

Is it possible to have an atmosphere that is essentially fog, but still be breathable by humans? I'm basically looking to have an environment where visibility is very low (for suspense reasons) ev...

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

50%
+0 −0
Q&A What atmospheric density would be required to allow a human being to fly without wings?

How dense would an atmosphere (that's presumably non-toxic) need to be in order for a human being (without wings, artificial or otherwise) to achieve unassisted flight (without killing said person ...

4 answers  ·  posted 6y ago by Not the letter A‭  ·  last activity 6y ago by Not the letter A‭

50%
+0 −0
Q&A If all the water on earth were to be displaced into the atmosphere creating a water canopy, how thick would it be?

If the water on earth were displaced to surround the earth in the atmosphere to create a water canopy, how thick would that canopy be? I apologize I should have been more specific in my original qu...

4 answers  ·  posted 6y ago by P.reid‭  ·  last activity 6y ago by P.reid‭

50%
+0 −0
Q&A What is the quickest way to perfect global warming?

The second terrestrial planet orbiting the Sun is shrouded in greenhouse gases, the entire surface of Venus is always scorching hot due to the high concentration of atmospheric carbon dioxide which...

3 answers  ·  posted 7y ago by user6760‭  ·  last activity 6y ago by user6760‭

50%
+0 −0
Q&A Advanced civilization on planet with atmosphere only in large sinkholes

I want to have an Earth-sized planet (with similar gravity) with an extremely low-density atmosphere (comparable to Mars) at most of its surface. Complex life, including an information-age civiliza...

7 answers  ·  posted 6y ago by taylor swift‭  ·  last activity 6y ago by taylor swift‭

50%
+0 −0
Q&A Avoiding preventing your own birth in a time travel paradox?

Assume a world with no multiverse theory, just a single unbroken timeline. If you were to go back in time to the town your parents lived in on day of your conception, the air displacement due to yo...

17 answers  ·  posted 7y ago by Space Ostrich‭  ·  last activity 6y ago by Space Ostrich‭

50%
+0 −0
Q&A Would a planet with sulfur dioxide atmosphere be feasible?

I'm working on a planet containing an atmosphere composed mainly of sulfur dioxide, with, notably, only trace amounts (if any) of oxygen. Is such a planet one that could realistically pop up in ou...

1 answer  ·  posted 7y ago by Keira Aro‭  ·  last activity 6y ago by Keira Aro‭

50%
+0 −0
Q&A Plants grown in planet's soil allow colonist to adapt to atmosphere

Is there a toxin which could plausibly exist in the atmosphere of a planet, which could make people sick but not too sick? Is it possible that plants grown in the soil from this planet might be ab...

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

50%
+0 −0
Q&A What can cause the formation of a water canopy above the Earth's surface?

Here is a link to the water canopy theory. My question is: how this water could end up there, high above the surface? I was thinking about two possibilities: a comet spreading ice/water as it pa...

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

50%
+0 −0
Q&A Would a circumbinary planet have a differently colored sky depending on which star was visible?

One of the things that affects the color of the sky is the wavelengths of light that the star emits, like the image in this question. Here is the image again: If you are standing on a circumbina...

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

50%
+0 −0
Q&A Looking to optimize the atmospheric gas mix and pressure for humans for minimal cellular degeneration

To build another world, I would want a perfected atmosphere that would sustain the air cycle and yet optimize a decreased cellular degeneration. i.e.: increase quality and length of life. Would ...

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

50%
+0 −0
Q&A How many "years without a summer" can society survive?

In 1815 Mount Tambora erupted throwing so much dust into the atmosphere that the year became known as "the year without a summer". *There were a few other mitigating factors but Tambora is thought ...

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

50%
+0 −0
Q&A Can you create a small atmosphere with giant walls?

Can you create an atmosphere on a celestial satellite by using giant walls? Perhaps assisted with some means of technology? In a story I am creating I want to create something different from the no...

2 answers  ·  posted 6y ago by Dayton Saragosa‭  ·  last activity 6y ago by Dayton Saragosa‭

50%
+0 −0
Q&A What kind of gases in an atmosphere could accelerate oxidation processes?

Recently, looking for information for worldbuilding purposes of my story, I found a post about how in a more oxygen rich atmosphere, the oxidation processes would take place more quickly. Subseque...

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

Question atmosphere
50%
+0 −0
Q&A Cities in a world with rapid winds and denser atmosphere?

I am looking for information on how the trees and the flora would be in a world with a denser atmosphere and stronger winds. I have read that due to the greater kinetic movement of the wind, that ...

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

50%
+0 −0
Q&A How do you get a thick atmosphere with less than earth-like gravity?

Basically: I want a highly viscous atmosphere but I want people to be able to walk around. I was thinking earth's gravity * 0.6 or similar. I was thinking that an atmosphere of Sulfur Hexafluorid...

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

Question atmosphere gas life
50%
+0 −0
Q&A How to make sure humans do not know the meteorological phenomenon rainbow?

You've got to love the rainbow, it's an awesome sight. But I don't want humans to have the pleasure of seeing the rainbow. What change to the earth, atmosphere and so on, is needed so that humans ...

16 answers  ·  posted 6y ago by Rolf ツ‭  ·  last activity 6y ago by Rolf ツ‭

50%
+0 −0
Q&A Could N2O be a major constituent in an exo-planet's atmosphere?

Say there would be plants that release a lot of N2O (nitrous oxide or laughing gas). On Earth, N2O is a trace-gas and it is pretty stable. In our atmosphere it has a half-life of > 100 years, an...

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

50%
+0 −0
Q&A How much power can you send via a laser through the atmosphere without catastrophic effects?

Assuming that you had: some sort of amazing power plant on the moon that can create an unlimited amount of power a similarly amazing solar panel on earth that can receive an unlimited amount of p...

2 answers  ·  posted 9y ago by user2813274‭  ·  last activity 6y ago by user2813274‭

50%
+0 −0
Q&A What types of challenging atmospheres might exist on an ice planet?

We know that Venus has a poisonous carbon dioxide and hydrochloric acid atmosphere at a temperate of over 800 °F, but what about an ice planet? Mars is mostly freezing with a trace atmosphere, we ...

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

Question space atmosphere ice
50%
+0 −0
Q&A Given an initially high concentration of CO2 and H2O, how efficient can I conceivably make a photosynthetic reaction?

I have been told that the high proportion of O2 and CH4 in my atmosphere are unsustainable unless constantly refreshed by an active process. I would like to sustain the following atmospheric compo...

1 answer  ·  posted 6y ago by Rúnatál Davino‭  ·  last activity 6y ago by Rúnatál Davino‭

50%
+0 −0
Q&A If there are water oceans, must there be oxygen in the atmosphere?

I am trying to create a planet that either has no oxygen in the air, or it has very little; i.e. not enough to sustain humans without the use of a breathing apparatus. Large portions of the planet ...

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

Question atmosphere ocean
50%
+0 −0
Q&A Given atmospheric composition, density and scale height, planetary radius, and escape velocity, what is the lapse rate?

My planet Mass = 0.602 MEarth Radius = 0.870 REarth Density = 5.04 g/cm3 vesc = 9.3 km/s Temperature = 272 K My atmosphere 74.84% N2 22.04% O2 1.38% CH4 1.25% Ar 0.27% H2O 0.11% CO2 Mo...

1 answer  ·  posted 6y ago by Rúnatál Davino‭  ·  last activity 6y ago by Rúnatál Davino‭

50%
+0 −0
Q&A How much gas can my planet retain in its atmosphere, based on its mass?

My planet Jasmi is 0.602 MEarth and, according to the wonderful u/shagomir's Planet Calculator Pro spreadsheet, I need to retain enough gas for just over 5 atm of pressure at sea level for a suitab...

1 answer  ·  posted 6y ago by Rúnatál Davino‭  ·  last activity 6y ago by Rúnatál Davino‭

50%
+0 −0
Q&A What atmospheric composition do I need to sustain Earth-like temperatures at my planet's orbital distance; how close should my asteroid belt be?

I need to heat my planet and I've decided that the two most plausible and controllable ways to do so are by increasing the amount of bombardment by meteoroids from a nearby asteroid belt, and by ti...

2 answers  ·  posted 6y ago by Rúnatál Davino‭  ·  last activity 6y ago by Rúnatál Davino‭

50%
+0 −0
Q&A Would crystal-asteroids filled with a gas like iodine be plausible to refract light into making a coloured sky?

So I would like a coloured sky in my world, but I want it to be plausible. I'm not so good at science and the like but I've been doing a lot of research. If crystal-like asteroids filled with col...

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

50%
+0 −0
Q&A Is a snowball planet a necessary step in the evolution of a life-sustaining ocean planet?

Still working on that world with with a 93% ocean covering. My star Xat is 1.71 LSol, and my planet Jasmi orbits at 2.14 AU. I've been warned that the resulting apparent brightness of about 37% Sol...

2 answers  ·  posted 6y ago by Rúnatál Davino‭  ·  last activity 6y ago by Rúnatál Davino‭

50%
+0 −0
Q&A How does the air remain stationary in The Big Blue?

The Parachute Cities fall endlessly, ploughing their way downwards through an infinite blue sky. The Big Blue is a universe of sorts. It certainly has no bottom, but it does have a concept of "˜do...

2 answers  ·  posted 6y ago by Joe Bloggs‭  ·  last activity 6y ago by Joe Bloggs‭

50%
+0 −0
Q&A Effects of increased air pressure on humans

This is a pretty simple question, but initial research only seems to provide the opposite end of the spectrum. What I'm wondering is if there are any known side effects of living in an environment ...

2 answers  ·  posted 8y ago by DaaaahWhoosh‭  ·  last activity 6y ago by DaaaahWhoosh‭

Question biology atmosphere
50%
+0 −0
Q&A Skydiving... From a space station

It's now the late 23rd century and there are now hundreds of space stations, orbiting approximately at the height of the (now deceased) ISS, give or take a few kilometers. Lately, the International...

6 answers  ·  posted 8y ago by Ethan Bierlein‭  ·  last activity 6y ago by Ethan Bierlein‭

50%
+0 −0
Q&A Giving a Planet Sunburn

How can I make a colonizable planet/moon that receives intense UV/x-ray radiation on parts of its surface while receiving much less on the rest of it? The most obvious way of doing this is to have...

7 answers  ·  posted 7y ago by emo bob‭  ·  last activity 6y ago by emo bob‭

50%
+0 −0
Q&A Flight within the shared atmosphere of a Rocheworld, and between the planets, with low gravity wrinkle?

In a Rocheworld scenario where two planets are tidally locked and share an atmosphere, but where both the planets are so small that their gravity is very little (as low as one of the dwarf planets ...

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

50%
+0 −0
Rigorous Science The Great Deoxygenation Event

Assume an Earth-like or super-Earth terrestrial planet in a state comparable to Precambrian or Archaen Earth. The atmosphere is mainly nitrogen and carbon dioxide, perhaps some methane, but very li...

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

50%
+0 −0
Q&A How can a small planetoid hold an atmosphere under artificial means?

Edit: Before I give up on this I wonder how could an advanced civilization create conditions on a small planetoid (Ceres sized?) to keep an Earth level breathable atmosphere? It seems like its impo...

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

50%
+0 −0
Q&A How would sunlight work in the area of shared atmosphere of a Rocheworld?

(See diagram) Presupposing that a Rocheworld can even exist... I imagine that sunlight would work more or less the same in the atmosphere of any part of an Earth like planet that was tidally lock...

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

50%
+0 −0
Q&A What are the climatological effects to the surface of a planet where the atmosphere gives way to vaccum? (diagram included)

(Please see diagrams) This is a question regarding an area of a Rocheworld scenario that I haven't found anything on. It is suggested that the OUT side of a planet that is tidally locked with an...

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

50%
+0 −0
Q&A What Color Can the Sky Be?

A good friend of mine, who's a doctor, is very well traveled, and he told me he's seen skies of different worlds take all the colors of the rainbow (and the grayscale to boot). I suspect that he mi...

3 answers  ·  posted 9y ago by Serban Tanasa‭  ·  last activity 6y ago by Serban Tanasa‭