All Questions
27
questions
4
votes
1
answer
301
views
Weather for a dense-atmosphere water world
In this answer, I describe a low-density water world with a surface gravity of 1g and a surface atmospheric pressure of 20 ATM. The air temperature at the 1 ATM altitude (naively, assuming a ...
- 63.3k
3
votes
3
answers
115
views
Could the differences between day and night on this desert planet allow for strictly nocturnal condensation?
Here's the basic gist of this (debatably) habitable Earth-like desert planet:
Size: Same as Earth
Rotation: 30 hours (three extra hours of daylight followed by three extra hours of night)
Revolution:...
- 14.6k
7
votes
4
answers
198
views
Analog to water in rain
While on earth it usually rains water, it usually isn't a sight to behold. To spice things up, I would like the rain to truly remind its colonists that they're on an alien world. However, this ...
- 388
19
votes
9
answers
5k
views
Does ice have to be on both poles?
If an Earth-like planet has ice, does the ice have to be on both poles? For example, could a planet have ice on its south pole but not on the north pole, year-round?
- 191
4
votes
1
answer
315
views
Are these ocean currents realistic for a planet that rotates 16 times slower than Earth?
Ocean Current Map:
The straight red lines are 60* North and South, and the straight blue lines are 30* North and South. The curved blue lines with an arrow represent cold currents, while the curved ...
- 1,583
2
votes
2
answers
207
views
What kind of atmosphere is needed for large floating organisms?
Assume you have an identical Earth-clone planet, what kind of atmosphere is required to have floating organisms? What I define as a large floating organism is something about the size of a bat, but ...
- 1,583
-2
votes
1
answer
74
views
Is my air pressure system okay? [closed]
Second question here. So in a previous question I got told to make a wind system to determine precipitation, which in turn needs and air pressure system. I've attached two images, the first is when ...
- 87
7
votes
4
answers
522
views
How can I make my often-lightning-struck mesa sound like giant drums?
Premise 1: I prefer to know if it's possible to realize this without much handwaving (hence the science-based tag) but, as this is going to be in a fantasy setting, answers which make it possible with ...
- 4,697
2
votes
1
answer
187
views
Weather forecast for colossal O'Neill cylinders?
I think we can predict with great accuracy what's the weather going to be in a small O'Neill cylinder since we get to control the humidity and air flows, etc but then a tiny variation in temperature ...
- 48k
3
votes
1
answer
148
views
Meteorological consequences of walls reaching into the sky, enclosing a large area
Suppose we walled off a 1000 km square. These walls would be made of unobtanium (so they don't break), and have no cracks or holes that go all the way through. They are also around 15 kilometres high, ...
- 2,884
3
votes
3
answers
254
views
How could a portable handheld weather machine work?
Intro: As some of you may know, the character shown in this picture is none other than the Weather Wizard, one of the Flash's most dangerous adversaries. With the help of rod-like device in his hand (...
- 415
9
votes
4
answers
383
views
If we dug a really big hole on Mars, how long would it last?
How long will a 400 km wide 30 km deep pit (trench or crater) with a relatively shallow (for stability) gradient of slope of 20 degrees from the edge to the surface of the planets crust be expected to ...
- 9,673
3
votes
2
answers
287
views
Would this setup of a terraformed moon hold up?
[Edits added in italic]
BACKGROUND
A few thousand years from now the moon has become one of many habitable places in the solar system. Economy, constant growing knowledge and human will made drastic ...
- 1,082
10
votes
8
answers
3k
views
So much smoke that the suns rays never get through?
In my book I have a city which is constantly dark. The sun doesn't reach it. This is because it's a city of waste, so all the waste gets thrown into this city and lit on fire every single day, which ...
- 593
9
votes
3
answers
240
views
Can a planet of heavy and regular rains or monsoons have little to no surface water?
There is a background planet in this story that is important due to character back story however we never visit it in this book.
It is describe as a mostly jungle planet, with regular heavy rains or ...
- 5,285