61–70 of 111 posts
Earlier quoted context omitted.
Wool my friends. It is the only way.
but wool is so itchy and scratchy, isn't it?
This doesn’t explain why the interstitial fluids and cells themselves in a birds feet avoid freezing. Presumably, either their feet can simply be maintained at slightly above freezing or they use some form of antifreeze. Does anyone know?
I feel like I’ve read articles about birds feet not getting cold from four different sources (Reddit, YT, Twitter and now HN) in the past week. Why is everyone suddenly so interested in birds?
IDK but I picked up one of my hen this morning and thought "Wow, her feet are COLD." Bird feet may not normally get frostbite or whatever, but they certainly do get cold.
This is anecdata. I am also not a bird. Inspired by Wim Hof, I've started doing short barefoot snow walks. Within days, even between multiple walks on the same day, my feet became more cold-tolerant. They now recover from the cold faster, stay warm in the snow longer, and when I'm indoors, my feet are no longer cold without socks. My feet used to be cold to the touch and feel cold subjectively without socks.
I don't have a proper opinion on Wim Hof and his methods. On one side, he seems a nice, genuine person. On the other, I've read things that didn't necessarily add credibility to his methods. Plus, his appearance on Gwyneth Paltrow's show (considered by many non scientific) was a bit of a downer for me.
Earlier quoted context omitted.
Interesting. From my experience, coldness of feet is correlated with blood circulation. There are periods when my feet are cold (going together with the restless legs syndrome at night), and I think it goes away when circulation improves. My theory is that exposing feet to elements is another trick to improve blood flow to them, I’ve been meaning to try that.
If you don't have any snow to walk through, just give 'em an ice water dip. You can do your whole body, too, with similar benefits. It's uncomfortable, but what isn't... In my experience, and I've not found any studies to support this, restless legs correlates with oxygen levels vs carbon monoxide and/or carbon dioxide levels. Check your air.
This is anecdata. I am also not a bird. Inspired by Wim Hof, I've started doing short barefoot snow walks. Within days, even between multiple walks on the same day, my feet became more cold-tolerant. They now recover from the cold faster, stay warm in the snow longer, and when I'm indoors, my feet are no longer cold without socks. My feet used to be cold to the touch and feel cold subjectively without socks.
Acclimatisation is real. I've noticed a trend in the UK over the past 20 years or so. Previously many people, like my parents, used the central heating minimally. It would come on in the morning just to take the edge off in the winter. But that was pretty much it. Nowadays people are trying to keep their house the exact same temperature year round. That means it's warm in the winter and (if you have ac) cold in the s…
This is anecdata. I am also not a bird. Inspired by Wim Hof, I've started doing short barefoot snow walks. Within days, even between multiple walks on the same day, my feet became more cold-tolerant. They now recover from the cold faster, stay warm in the snow longer, and when I'm indoors, my feet are no longer cold without socks. My feet used to be cold to the touch and feel cold subjectively without socks.
I don't have a proper opinion on Wim Hof and his methods. On one side, he seems a nice, genuine person. On the other, I've read things that didn't necessarily add credibility to his methods. Plus, his appearance on Gwyneth Paltrow's show (considered by many non scientific) was a bit of a downer for me.
Earlier quoted context omitted.
HVAC systems. The outgoing air goes through a heat exchanger to transfer heat to the colder incoming air.
As far as I know, most HRVs are cross-current. I don’t know why.
Rotating disk heat recovery devices can also recover humidity.