Interesting and humorous - page 252
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Dim, for that you need to have a concept of humidity in general.
Humidity is not the amount of water, although it is related to it. Relative humidity is measured by the partial pressure of water vapour. Including at temperatures below zero Celsius.
In simple terms, the proportion of water vapour pressure in total air pressure is relative humidity. This proportion is measured as a percentage of the total pressure, respectively.
The main thing is more obscure words. Partial pressure comes from what? The presence of some component of the gas. The bigger the component, the higher its partial pressure. I'm not the only one who came up with this, I also found a table like this:
Note that measuring the amount of water in grams makes the question somehow clearer and more realistic, as opposed to using the concept of "partial pressure".
What the relationship of mass to pressure is, I don't know. Whether it's linear, or whatever. I don't think anyone will say here.
ps: Pressure and quantity are directly proportional.
Maybe it's not about thermal conductivity, it's about heat capacity.
No, it's supposed to be about thermal conductivity. But you have to remember that water increases in thermal conductivity as it cools.
In our experience, in Belarus, 20 degrees below ground is much harder to bear than in the mountains, for instance.
No, supposedly in thermal conductivity. But we must not forget that water's thermal conductivity increases as it cools down.
In our experience, it's -20 in the lowlands of Belarus, which is much harder to bear than in the mountains.
Three geese rolled into asphalt
https://www.youtube.com/watch?v=i4tQacf-qjg
That's a great tableau. It answers the question that started it all - the presence of water vapour in the air at negative temperature. Specifically. In kilograms per cube.
In mountains at altitude the pressure is lower, it means that there is less water in the air.
... as well as the air itself. Percentages are another matter.
No, it's supposed to be thermal conductivity. But we have to remember that water's thermal conductivity increases as it cools.
In my experience it is -20 here in Belarus in the lowlands which is much harder to bear than in the mountains.
It'll take you a while to get down to the lowlands on your board... although it depends on what you're braking against. :)
...although it depends on what you're braking against.... :)
Catching swarms
https://www.youtube.com/watch?v=FttbqHioDgY
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Stepan Demura detained by Russian investigative authorities
http://rusjev.net/2015/10/02/stepan-demura-zaderzhan-sledstvennyimi-organami-rossii/
https://www.youtube.com/watch?v=C97XC2i0jd8
(short film)
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