Questions tagged [temperature]

For questions about heat and temperature. For example, such questions could ask about the temperature of astronomical objects, living beings, or space.

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What would be best way to re-melt Mars' mantle and core to revive its magnetosphere

Missing magnetosphere on Mars keeps popping up. Most likely caused by Mars core being cold, mantle not bubbly enough. Mars mantle is dormant, core does not move. What would be good way to get it ...
Peter M. - stands for Monica's user avatar
34 votes
12 answers
7k views

Is it possible for a substance to be thermally inert?

Heat is energy. Temperature is an indication of the level of heat in a substance. But the normal way to measure temperature is to observe how the substance interacts with its surroundings - most ...
rosuav's user avatar
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24 votes
5 answers
5k views

What problems would a superhuman have whose skin is constantly hot?

The basic premise is about a metahuman whose skin always emits large amounts of heat. It's usually around 300-500 F (150-260 C) degrees, but when he gets mad, in pain or in a serious fight, it can ...
Purplejack2020's user avatar
23 votes
9 answers
7k views

Why are my caves warm with nobody heating them?

The continent is split apart by a dense area of mountains, covered in glaciers. Any travelers who with to go from one part of the continent to the other would either have to cross the mountains, or go ...
MechMK1's user avatar
  • 650
22 votes
10 answers
8k views

Medieval method of measuring temperature

What methods could a medieval society (technology level around 1475-1500 AD) use to measure the temperature of a liquid? The world is similar to medieval Britain/Europe, but with more trade so ...
Korthalion's user avatar
  • 1,374
21 votes
9 answers
3k views

Polar Heat, Equatorial Cold - Climatic Effects of Inverted Global Temperatures

How does inverting global temperatures affect climate? Here exists a fantasy world similar to earth in all important ways. Except, however, that global temperatures have been flipped; it is coldest ...
user avatar
18 votes
15 answers
12k views

Superheated bullets and the damage they would deal

So, imagine that we're using technology that allows us to fire superheated bullets, and we decide to implement it against three types of opponents: Unarmored, wearing just normal clothes Lightly ...
Baka-Mastermind's user avatar
17 votes
12 answers
6k views

How devastating is a weapon that can internally and rapidly cool down a section of a human body?

Let's say in a magical world, there exists a basic cooling spell which slightly cools down an area by reducing the heat energy of everything inside it. In said world there also exists a particularly ...
votbear's user avatar
  • 463
17 votes
5 answers
5k views

At what temperature should the earth be cooked to prevent human infection?

Humans are the equivalent of bacteria to planet-eating monsters. And since, as we all know, eating humans is dangerous business, these monsters have decided to cook our great planet Earth before ...
Hugo's user avatar
  • 1,023
17 votes
4 answers
5k views

Is a world with an average temperature of 34 °C habitable for humans?

In my setting, one of the habitable (?) worlds has a global average temperature of 34 degrees Celsius (93.2 F). Is this within the human habitability range, or is it too hot?
Alexader Ferguson's user avatar
17 votes
4 answers
2k views

Would a planet with very small temperature variation (between 17 and 21 degrees Celsius) be possible?

Would it be possible for a planet-wide climate be set so that the temperature even at the poles would continually stay within a narrow range between 17 and 21 degrees Celsius? (This is approximately ...
x457812's user avatar
  • 749
16 votes
19 answers
5k views

How to make ice magic work from a scientific point of view?

I've recently been imagining a world of magic with heavy influence from chinese wuxia and xianxia. In such worlds, there's often various fire and ice magic, among other different types. Now, fire ...
Vanja Horvat's user avatar
16 votes
6 answers
7k views

Could negative kelvin be achieved?

What the title says I guess. I'm looking into ways to make a plausible exotic matter source for a story with an Alcubierre drive and I think recall that I saw that there was a possibility to use ...
Nierninwa's user avatar
  • 2,034
16 votes
6 answers
478 views

How would one determine the upper and lower temperature limits for a race of human-sized reptiles?

It's a fairly well-known fact that reptiles are ecotherms, meaning that they require outside sources of heat to stay warm and metabolize. However, being too hot can cause heat sickness (not fun), and ...
Pleiades's user avatar
  • 2,270
16 votes
1 answer
850 views

Stabilizing the Temperature On a Planet With a (Very) Long Day

Let's say my terrestrial planet has a stable circumbinary orbit around two suns similar to the Kepler-47 system, in the habitable zone, with an orbit similar to Kepler-47c. The challenge here is that ...
Midwinter Sun's user avatar
15 votes
5 answers
3k views

How can I make a black dwarf star?

In response to a question about an asteroid filled with degenerate matter, Ender Look suggested that using matter from a black dwarf would be better than using matter from a white dwarf since black ...
HDE 226868's user avatar
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15 votes
4 answers
2k views

Where on a tidally locked planet with a 25 °C maximum is the 0 °C isotherm?

I am writing a novel. In that novel, humans have settled a tidally locked planet. That planet is positioned at just such a distance from its sun that the sun heats the planet to an average of 25 °C at ...
user avatar
14 votes
4 answers
2k views

Why might an area of land be so hot that it smokes?

I'm attempting to design a desert area that could almost constantly be covered in a thin layer of smoke. It does not block out the sun but instead sticks closer to the ground. The land is hot, arid, ...
Popplio Lover's user avatar
14 votes
7 answers
4k views

How would merfolk insulate an underwater house?

If you tried to insulate your underwater home, making it water tight... wouldn't you suffocate yourself? Water does get stale, and run low on oxygen, creating a dead-zone, so wouldn't you want some ...
Johnny's user avatar
  • 4,168
14 votes
4 answers
3k views

Weather and temperature effects on leather armor

What exactly happens to leather armor in different environmental conditions, for example battles or long exposure to rain or desert heat? What can be done to negate or care for it?
David K.'s user avatar
  • 151
13 votes
2 answers
2k views

Day and night temperature on an Earth-like planet with longer rotational period

DISCLAIMER: This question was closed on Astronomy Stack Exchange as off topic, so I'll try my luck here. I'm trying to understand the climatic effects of the far future scenario of an Earth-like ...
sum1stolemyname's user avatar
13 votes
1 answer
438 views

Where do hydrothermal vents form inside icy ocean worlds?

Context: In a near-future version of our solar system, humans have established multiple underwater colonies on Jupiter's moon Europa. Many of these outposts are situated next to hydrothermal vents ...
Zxyrra's user avatar
  • 20.5k
12 votes
5 answers
4k views

What effect could drop the freezing temperature of water globally to −40 Celsius?

This question comes up from Is there a man-made or natural event that can cause an abrupt climate change within hours/a day? – trying to get KaguraRap a functional answer to an abrupt temperature drop ...
Twelfth's user avatar
  • 24.2k
11 votes
3 answers
2k views

Superheated wing blast!

So, we know that big creatures will generate lots of heat if they’re active. We also know that wings are very good at venting excess heat. Now for most animals, this heat isn’t exactly spectacular, a ...
Nick's user avatar
  • 5,273
11 votes
5 answers
2k views

Cooling Question: How can I integrate a low tech freezing system into my world?

I'm trying to design a culture that has access to cooling as a primary source of food preservation. This culture is set in the desert. They will have access to a magical stone that has the ability to ...
Thomas F. Webber's user avatar
11 votes
8 answers
2k views

Desert poles but arctic equators; trying to find out if specific way is possible

I'm trying to create a planet with a hot desert north and south pole but a cold equator. Is this possible? and if so how? And if it's heavily related to space how would night and day work on this ...
Rugiewit's user avatar
  • 111
11 votes
8 answers
3k views

What key invention allows the exploration of my hot humid world?

I want to know what key invention would allow my civilization to travel down to and explore its world at sea level. This is similar to my previous question* but this time does not assume metals are in ...
Slarty's user avatar
  • 36.9k
10 votes
4 answers
2k views

Could a world exist with a distinct line of changing temperatures between the hemispheres?

I'm trying to create a world where there's an equator-like divide running along the axis(?) of the planet and the two hemispheres are perpetually different in terms of temperature. Basically, I want ...
Morgan's user avatar
  • 141
10 votes
5 answers
408 views

Can my planet be gradually eroded by solar wind over 6 billion years?

The planet is a barren rocky dwarf planet which orbits at 0.05 AU from its star of 0.9 solar masses, at 6 billion years old. Because of this, it’s surface is melting and evaporating, forming a thin ...
Sean Holm's user avatar
  • 611
10 votes
4 answers
433 views

How would a permanently cold tower affect its environment?

In my world, physics works exactly like on Earth, except that there is a narrow, 400 foot tall magical column sticking vertically out of the ground, which is magically always extremely cold -- I'm ...
Nathan Hinchey's user avatar
10 votes
3 answers
756 views

On a frozen world, what would be the thinnest, warmest materials to make clothing from?

I have a world I've been developing whereby the entire world is locked in a cycle of perpetual winter. The "seasons" still exist but are merely a spectrum of mild cold ranging toward horrific winters....
VerasVitas's user avatar
10 votes
4 answers
333 views

Switching between poikilothermic and homeothermic metabolism

I am designing a mammal living in a warm environment (like a warm desert) which has developed a switchable metabolism, so that during the day it is cold blooded and during the night (when it is colder)...
L.Dutch's user avatar
  • 277k
10 votes
1 answer
311 views

If the Earth had 48 hour days, how much would the temperature drop at night and raise in the day?

I'm building a world that's essentially identical to Earth, except that it spins slower, making the days about 48 hours long. I'd like to know what the average temperature drop at night would be, and ...
Mocascoolai's user avatar
9 votes
8 answers
6k views

How can I heat my buildings without fire in a low-fantasy setting?

In my low-fantasy setting there is a civilization of blind people living in a very safe and isolated region of the world. Thinking about how this civilization could have developed throughout the ...
Soel's user avatar
  • 919
9 votes
3 answers
453 views

Flash-heating humans

I'm working on a version of wormhole-based FTL travel, and one of the side effects of passing through the wormhole is going to be instantaneous heating of every molecule of the thing passing through. ...
Gryphon's user avatar
  • 10.9k
9 votes
4 answers
950 views

Alien Biological Temperature Control?

I'll keep this one brief. I have an alien from a planet which has extremely cold nights and extremely hot days (the day and night cycle may be short or long, I haven't decided). When the alien gets ...
J. Doe's user avatar
  • 1,651
9 votes
2 answers
792 views

Temperature and climate "under" the gas giant in a tidally locked moon

I've begun the laborious (but fun!) process of putting another world together. Known constraints include: Habitable, (super-)Earth-sized, tidally-locked moon to a gas giant; the giant, where visible,...
Lumos's user avatar
  • 193
8 votes
5 answers
765 views

Is there any plausible in-between of Endotherms and Ectotherms?

Someone in the comment section of my previous question pointed out the energetic problem of ectotherms with human intelligence (the brain needs a lot of energy). I still want to keep my lizardfolk ...
Mephistopheles's user avatar
8 votes
4 answers
770 views

How would thermophilic fish survive?

I'm designing alien creatures for illustrations, and I'm just sketching some that might live in areas with a lot of geothermal activity. So basically, animals that live around geysers and hot steam. I ...
Maerran's user avatar
  • 83
8 votes
6 answers
363 views

Geothermal Oasis Alternatives on Ice Planet

I have an Earth analog that is nearly completely covered in ice and glaciers. I want to have oases of warmth scattered across the planet. These oases aren't tropical by any means, having just enough ...
Thalassan's user avatar
  • 2,900
8 votes
3 answers
272 views

Could a life form evolve an organ for generating temperatures less than a degree Kelvin above absolute zero?

I was thinking of a life form with a similar surface temperature to Earth, as well as a similar temperature variation to that of Earth. Could such a life form evolve an organ for generating ...
Anders Gustafson's user avatar
8 votes
1 answer
392 views

Where to find equations to calculate tidal heating in a binary planet/planetesimal system?

I'm building a very small homeworld (0.602 M$_e$) with a very large moon (0.0711 M$_e$) that orbit each other at a barycenter about 7.12 planetary radii (1 R = 0.870 R$_e$) from the primary's center; ...
Rúnatál Davino's user avatar
8 votes
1 answer
233 views

Maintain atmosphere on moon using global warming

So, a neat thing, depending on how you look at it, about greenhouse gases is that while it's causing a raise in temperature near the surface it actually makes the upper parts of the atmosphere ...
rclev's user avatar
  • 787
7 votes
5 answers
1k views

How can my fictional race of humans extend the area of their world they can explore?

This world is an alternate Earth similar size, mass and distance from its star to our Earth. The atmosphere is similar in composition to Earth except at 5000m altitude the pressure is two bar and the ...
Slarty's user avatar
  • 36.9k
7 votes
4 answers
3k views

Is it possible to use Venus' temperature to generate electricity, and how would the electricity be transferred to Earth?

Assumptions: We have materials that can withstand the temperatures/pressures/acidity of Venus. We can get to Venus and back reasonably easily (NASA does shuttles every 3 months). Here is Venus: ...
Tim's user avatar
  • 1,237
7 votes
3 answers
2k views

Could human beings evolve to have a higher body temperature in order to survive in cold climates?

Basically I want to create a world in which some of the humans have developed a higher body temperature in order to survive cold, harsh climates, such as the poles or even tall mountains. The reason ...
Feidhelm's user avatar
  • 199
7 votes
3 answers
568 views

What is the range of lava/magma viscosity on exoplanets; what conditions would have the least viscous lava lakes?

On planets of have different temperatures, conditions and chemical makeup of the lava/magma, what would be the least viscous lava around? (Relevant to an earlier question - What would an efficient ...
Fred the John's user avatar
7 votes
2 answers
539 views

Can a rogue planet have a habitable surface due to geothermal heat?

I am making a rogue planet. Right now it is a super-earth with a lot of radioactive materials in its core. It rotates very quickly as well. However, it needs to be habitable. And not just the deep ...
Infinite Delta's user avatar
7 votes
1 answer
736 views

Hot rods into space!

Based on this question about an impossible barbell planet, how hot would the bar be if it extended from halfway in the Earth's mantle to an altitude of 2r of Earth's radius? The diameter of the bar ...
Green's user avatar
  • 52.7k
7 votes
3 answers
473 views

Can my Planet Have Liquid Water at the Poles -- But Only During the Winter?

I have a planet about the size of earth. It is a desert planet with an atmosphere at 0.1 atm, made of 90% co2 and 10% n2. Water at this pressure should freeze at 35℉ and boil at 125℉. The planet has a ...
Sean Holm's user avatar
  • 611

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