Bicycle Bottle Turns Air Into Water

Forget water into wine - the next big thing is air into water.

Industrial design student Kristof Retezár has created a prototype for the ultimate cycling accessory: a self-filling water bottle that fills up as you move along.

It works using principles of thermoelectric cooling. As humid air passes into the bottle, it is cooled down by a solar-powered system, with the water present in the air forced to condense into liquid. In the right conditions, it can collect up to 0.5 litres per hour, enabling cyclists to venture for longer into places where there is little freshwater available.

Ultimately, Retezár plans to extend the principle, aiming to refine it with a purification system for use in polluted cities and also for general living in places of high humidity, but with scarce groundwater. He is also aiming to mass produce the device and is currently looking at crowdfunding and investment options.

Water great idea.

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(Images: Kristof Retezár)