Scientists experimenting with turning sweat into purified, drinkable water

Machine featured at soccer tournament

People attending a world youth soccer tournament in Sweden will have a chance to drink water that comes from sweat.

A group of Swedish engineers built a "sweat machine" that pulls the sweat from damp clothing and then purifies and filters the liquid until it is fit to drink.

In case some aren't sweaty enough, there is also an exercise bike attached.

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