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Post by Donar on Jan 27, 2023 5:18:42 GMT -5
The top of Mt Everest has something like 33% the air density of earths surface. Mars is around 1% iirc. Correct, it’s around 32.5% and Mars is even lower than 1%. I learned it somewhere that when the air is thin enough, objects start to lose heat through radiational cooling and the closer a vacuum the more the radiational cooling. It’s the main reason the Earth keeps losing heat to space. I also made a mistake in one of my replies: you wouldn’t freeze in space, but your saliva and blood would boil. Objects emit a certain wavelength of radiation constantly depending on their temperature, but the lower the air density, the higher is the relative share of radiative heat flux vs turbulent heat flux/convection and molecular diffusion. |
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Post by caspase8 on Jan 27, 2023 5:40:53 GMT -5
A+ by Martian standards. F- by Terran standards.
The POR is extremely short. 3 years on earth correspond to about 1.5 years on Mars. So these averages aren't too reliable, especially since Mars has an unstable axial tilt.
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Post by massiveshibe on Jan 27, 2023 7:57:20 GMT -5
Interesting study on how Martian temps might feel to us Earthlings journals.ametsoc.org/view/journals/bams/95/4/bams-d-12-00158.1.xml With an average temperature of −63°C and winter lows of −120°C, Mars sounds far too cold for humans. However, thermometer readings from Mars are highly misleading to terrestrials who base their expectations of thermal comfort on their experience in Earth's much thicker atmosphere. The two-planet model of windchill described here suggests that Martian weather is much less dangerous than it sounds because in the meager atmosphere of Mars, convection is a comparatively feeble heat transfer mechanism. The windchill on Mars is expressed as the air temperature on Earth that produces the same cooling rate in still air, in Earth's much denser atmosphere. Because Earth equivalent temperature (EET) is identical to the familiar wind chill equivalent temperature (WCET) that is broadcast across much of North America in winter, it provides a familiar context for gauging the rigors of weather on another planet. On Earth, WCET is always lower than the air temperature, but on Mars the equivalent temperature can be 100°C higher than the thermometer reading. Mars is much colder for thermometers than for people. Some frontier areas of Earth are at least as cold as midlatitude Mars is, year round. Summer afternoons in the tropics of Mars might even feel as comfortable as an average winter day in the south of England. Sunshine on Mars should be about as warm as it is on Earth. Heat balance and clothing emissivity are also briefly discussed.By that logic you wouldn’t freeze in space either since there is no air there to suck the heat from you. By the same logic the Earth would keep getting warmer infinitely as the heat wouldn’t have anywhere to go. My parents traveled to the highlands of Peru this year. They went to an elevation of 4000m above sea level, the temperature was around 10C during daytime and -5C at night. When they returned here (1200m above sea level and temperatures around 15C at day and 5C at night), they said that it felt colder here than in Peru. Why do climbers also freeze to death on Mount Everest? Why would this be the case if mountains had less air to steal the heat from our skins? Oops. My parents said it actually felt colder in Peru than here, I was too sleepy last night and couldn’t think straight. The temperature difference was only around 5C between here and there during daytime. |
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Post by Strewthless on Jan 27, 2023 8:11:36 GMT -5
A+
I used to live nearby. I loved the long summer afternoons when I could take off my spacesuit and bask in the generous 2C temperatures.
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Post by Cheeseman on Jan 27, 2023 8:37:41 GMT -5
F
Obvious reasons.
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Post by 🖕🏿Mörön🖕🏿 on Jan 27, 2023 8:51:44 GMT -5
B+ by Martian standards.
Could be worse.
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Post by Steelernation on Jan 27, 2023 11:28:10 GMT -5
^Nice to see Steelernation being humiliated. But heck, I thought it was a fictional climate too, just to show you that real world climates can be "unrealistic" as well! In all seriousness steelerboy, if you don't like to rate "stupid fictional climates" then don't bother commenting! It ain't hard... I was not humiliated, I made a mistake, got corrected and fixed my post. Real world climates aren’t unrealistic as they all exist. And I don’t mind fictional climates, I like dream climates a lot, as long as there’s some semblance of realism that could theoretically exist. I see absolutely no point in a thread of a super unrealistic climate that has 0 meteorological explanation. Id rather call out moronic dribble when I see it than ignore it. And you could say the same…just ignore it when people complain about your fictional climate |
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Post by Ethereal on Jan 29, 2023 4:28:06 GMT -5
^Nice to see Steelernation being humiliated. But heck, I thought it was a fictional climate too, just to show you that real world climates can be "unrealistic" as well! In all seriousness steelerboy, if you don't like to rate "stupid fictional climates" then don't bother commenting! It ain't hard... I was not humiliated, I made a mistake, got corrected and fixed my post. Real world climates aren’t unrealistic as they all exist. And I don’t mind fictional climates, I like dream climates a lot, as long as there’s some semblance of realism that could theoretically exist. I see absolutely no point in a thread of a super unrealistic climate that has 0 meteorological explanation. Id rather call out moronic dribble when I see it than ignore it. And you could say the same…just ignore it when people complain about your fictional climate Fair enough I guess. I just think we should encourage people here to post more often, even if they create unrealistic fictional climates. Not saying fictional climate should be AdriannaSmiling-esque type though. |
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Post by Crunch41 on Feb 4, 2023 22:41:45 GMT -5
It's real! Still gets an F.
A+ for the joke though.
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Post by MET on Feb 4, 2023 22:43:05 GMT -5
F, because it is too cold.
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Post by CRISPR on Feb 11, 2024 1:49:05 GMT -5
F--------- without a spacesuit, F- with
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