Condenses water from the air. May not be too useful in a dry climate, but Texas is at its worst when the humidity is insanely high. Looks ideal for emergency water.
Can't find anything about how long it takes in various temp/humidity combinations, but even if it took all day to fill that bottle, that's still a lot when you're away from any other source.
http://fontus.at/
Sorry, Bear Grylls, couldn't find one that generates urine directly.
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