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Bicycle Bottle System Condenses Humidity From Air Into Drinkable Water
Diggester writes The weight of water limits how much can be brought on a long bike ride. There isn't always an option to stop and fill up from a clean stream or drinking fountain, but water could be obtained from a different source: the air. Austrian industrial design student Kristof Retezár has created Fontus: a prototype of a water bottle system that condenses humid air into clean, drinkable water. His design made him a finalist for the 2014 James Dyson Award.
Yes, of all the possible places this could be used it seems bizarre he decided to focus on the cyclist market.
Point of fact: it's just an air conditioner. The only difference is that it uses mechanical power instead of electrical to run its heat pump.
It's because for most places you can make a more efficient, cheaper and more easily scalable version with a bucket, some plastic and a rock. The only drawback is that it's harder to mount on a bike.