#222047 - 04/21/11 12:09 AM
Re: Surviving While Wet
[Re: Pete]
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Pooh-Bah
Registered: 07/11/10
Posts: 1680
Loc: New Port Richey, Fla
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a little physics...it takes an additional 540 heat calories (1000 heat calories = 1 food calorie) to evaporate 1 gram of water to a vapor if the water is already at 100C... so for every 2 grams of water you evaporate using your body as a heat source, you are using up a little over a food calorie of energy... there are about 20 drops in a gram (ml) of water
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#222053 - 04/21/11 02:05 AM
Re: Surviving While Wet
[Re: LCranston]
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Geezer
Registered: 01/21/04
Posts: 5163
Loc: W. WA
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I don't remember where I read this, don't know if it's true, don't know how it would be an option if there was no snow...
The advice was to roll in the snow in your wet clothing, as the snow will absorb the water. Or most of the water. If it does work, would it work well enough so you wouldn't have to undress to wring out the clothing?
Any thoughts on this? True? False?
Sue
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#222054 - 04/21/11 02:38 AM
Re: Surviving While Wet
[Re: Susan]
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Old Hand
Registered: 02/11/10
Posts: 778
Loc: Los Angeles, CA
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The purpose of rolling in the snow while wet is exactly that,the snow will absorb alot of the water,& It will also create a Barrier for cold wind to penetrate,so you are warmer than otherwise.It actually works as,I've done it some many yrs ago in the Military for Survival training,& though it worked,I still froze up quite a bit,until we huddled together to create more warmth.
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#222063 - 04/21/11 03:16 AM
Re: Surviving While Wet
[Re: CANOEDOGS]
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Pooh-Bah
Registered: 09/01/07
Posts: 2432
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some eye opening advice i got some years ago was that drying fleece by wearing it uses up a lot of calories. It helps a lot if you work to aggressively remove as much water as possible from fleece before putting it back on. Wringing doesn't work too well but spinning it over your head, letting centrifugal force remove water, and whacking it down hard on a flat, dry surface, both remove a considerable amount of water. Work it for a minute or two and you can get fleece remarkably dry. That and the exercise helps build heat. You still will have some moisture left but far less than what you have with just a quick shake.
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#222079 - 04/21/11 02:09 PM
Re: Surviving While Wet
[Re: LCranston]
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Carpal Tunnel
Registered: 03/11/05
Posts: 2574
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Consider carrying a backpackers towel to dry off. Even a tiny one 12 x 18 will do
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#222081 - 04/21/11 02:13 PM
Re: Surviving While Wet
[Re: CANOEDOGS]
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Journeyman
Registered: 01/04/08
Posts: 81
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just my thoughts from a "dip" in the Mississippi River at 10 below zero.it's a long story i have told here but it involved saving our dog Spoken as someone who had to rescue my (just married) wife's dog from drowning because he "JUST would not let go of that stick wrapped in lake weeds", I empathize. The question I have is did someone accompany you on your walk back to the car, and the subsequent drive home? I would be worried if you took off on your own for the walk and then had problems. If you did have company, would it have changed your mind regarding waiting for 911 if you had to go it alone?
_________________________
Men have become the tools of their tools. Henry David Thoreau
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#222082 - 04/21/11 03:04 PM
Re: Surviving While Wet
[Re: CANOEDOGS]
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Geezer
Registered: 01/21/04
Posts: 5163
Loc: W. WA
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"...i went to bed and slept for hours..note that,slept for hours.i would think anyone who get wets and comes out of hypothermia is going to be in the same situation and not have a ounce of energy left to do very much of anything except recover."
Very nice piece of information! And it sounds entirely logical. Another thing to be aware of, although it doesn't fit the TV/movie syndrome...
Sue
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#222088 - 04/21/11 04:16 PM
Re: Surviving While Wet
[Re: LCranston]
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Journeyman
Registered: 01/21/10
Posts: 60
Loc: Sonoma County, CA
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I've been running on the treadmill at the gym a few times a week and, when I do, I get my cotton shirt about 70% saturated (gross, I know). When I leave the gym, I toss on a fleece over the cotton t-shirt. 5 minutes later, I'm home and too hot in the 62* house to wear the fleece. Once removed, the cotton t-shirt begins to chill me pretty quickly, even with body temp up from the run, 62* ambient and no wind. If I take it off and stand around making the morning brew in just my shorts, I'm much warmer than with the wet shirt on.
All this to say, if you're wearing cotton and you get wet, I think you're better off removing it entirely. If I recall correctly, the aboriginals of Australia weathered generations of winters unclothed next to fires...
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