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The process is called desalination. The most common way is by simple evaporation. You need plastic wrap, a rock, a bowl, a cup, and of course... salt water. Fill the bowl 1/3 ways with salt water and place the cup in the direct center of the bowl. Cover the bowl with plastic wrap and then place the rock in the center of the plastic wrap so that it is directly over the cup. The wrap should be slightly caving in above the cup. In survival you can use the sun, but if you have the resources use a high-powered light. Shine the light directly over the bowl. Leave the bowl untouched for a few hours. The water in the bowl will separate with the salt and condense on the plastic wrap. The rock will drag the droplets over the cup and gravity will drop it into the cup. And there you have it, fresh H2O!

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15y ago

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