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Backpacker Magazine – September 2012
Survival Lab: Emergency Water
Without a drink, a hiker can die in as little as a day. We tested three techniques for conjuring H20 out of thin air. Plus: 5 easy ways to stay hydrated in hot climates.
Pee Bottle (Andrew Bydlon)
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Tags:
- Survival |
Solar Still
RESULTS Best for wringing pure water from a plentiful but questionable supply (salty, muddy, choked with dead possums). In four hours of partial sunlight, our still condensed 1/4 cup of water from a motley source of moist earth, a handful of greens, and a sprinkle of urine.
DO IT Best bet: Find a hole in a sunny area. Next best: Dig a 2-by-2-foot one with a flat bottom, or several smaller holes if the ground is hard. Add green vegetation, nonpotable water, or urine, then place a cup in the center. Spread a watertight material (rainfly, plastic) over the opening, pull taut, and seal the edges using rocks and soil. Use a stone to weight the sheet above the cup so the water drips into it.
TIP Save sweat: Dig at night in soft soil.
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READERS COMMENTS
I have witnessed transpiration bag method work very well. It seems a black plastic (garbage) bag draws more dew in the sunlight quicker than the clear plastic bag. Consider one caution while choosing different tree/bushes to bag. You might want to avoid black cherry (Prunus serotina) as it off-gasses hydrogen cyanide in levels that may be detrimental to humans. I do not know if there is sufficient data in this area presently. reference: TOXICOLOGICAL PROFILE FOR CYANIDE, U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES, July 2006
Lijiang is located in the upper reaches of the Jinsha River, has a long history, beautiful scenery, majestic natural environment, the descendants of the ancient Qiang, Naxi hometown.
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Old Town of Lijiang 2,400 meters above sea level, is the center of the city of Lijiang Naxi Autonomous County, is one of the historical and cultural city, is a national key scenic spots.
     Here is located in Yunnan, Sichuan and Tibetan roads, ancient times, frequent business travel activities, prompting locals flourishing population, and soon became famous bazaar and town. Generally believed Lijiang city began in the early Song Dynasty.,i hope you will like it!
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