odd_1nt3g3r5
odd_1nt3g3r5 t1_j249bab wrote
Reply to comment by drygnfyre in TIL Snow is an excellent insulator because it consists of about 90–95 percent trapped air (fresh). This is the reason why igloos are warmer inside than outside, and why some animals in colder regions build snow caves to spend the winter while hibernating. by SunCloud-777
I’ve done winter camping and I can confirm, you can sweat inside snow shelters.
We didn’t make igloos, we made quinzees. The concept is similar, but instead of directly constructing a dome you just pile up snow as high as you can get it and then hollow out the center. After a weekend inside one, a thick layer of glassy ice built up on the inside. We were sometimes unable to knock them down when it was time to leave because the ice could withstand the weight of the 4 people who had lived inside jumping on top of it. The windchill was -40 that weekend and we had to remove layers once inside the quinzee.
odd_1nt3g3r5 t1_iyaeexs wrote
Reply to comment by April_Spring_1982 in TIL that beans are banned in Spacecraft because they can produce "1-3 cups of flatus" in an environment where there are no windows by April_Spring_1982
To expand on the bread thing - they use tortillas instead because of the lack of crumbs
odd_1nt3g3r5 t1_j24v99r wrote
Reply to comment by WalkerBRiley in TIL Snow is an excellent insulator because it consists of about 90–95 percent trapped air (fresh). This is the reason why igloos are warmer inside than outside, and why some animals in colder regions build snow caves to spend the winter while hibernating. by SunCloud-777
Yep, we were cautioned about sweating during training before our outing. Go slow, pay attention to your body, and remove layers (especially your hat, weirdly enough) if you get too warm. Sweat is deadly in the cold.