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Small solar panel, a battery, hygroscopic pads, a small pump,
some tubing and a receptacle.
Pump to be powered from a small solar panel, possibly
mounted on your hat and feeding to the battery so it
continues to work in darkness.
The hygroscopic pads absorb water out of the air constantly,
channeling it deep into the pads where the pump picks it up
and deposits it in the bottle.
The pads could also be worn close to the skin, to recycle
perspiration (Similar to the water recovery idea in Dune)
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||I imagine it would be a survival only proposition.
Water loss, especially in the arid Australian inland,
is a big part of the problem if you get lost. There's
little or no surface water and the underground
water there is available is too far down to reach.
||I envisage something that might be usable for
military applications, though not in fighting
conditions. That sort of activity uses up a lot of
water very quickly. Soldiers always complain of
being extremely thirsty during and after an