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Kids’ invention saving millions of litres of water

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It’s World Water Day and we’d all be a lot better off if we gave as much thought to its conservation as German brother and sister Daniel and Lara Krohn (both aged 9).

The pair have invented a unique method for capturing rainwater that can be re-used to keep windscreens clean (see here).

They initially built a model that captures rainwater from the windscreen, filters it and pumps it into the wiper washer reservoir. This has the potential to save over 20 billion litres of water across Europe alone.

They came upon the idea while on a holiday with their parents; “The window was dirty and we had no more wiper water so that’s when we got the idea to capture the rain water and lead it into the wiper washer tank,” Daniel Krohn says.

Ford engineers built a model into a test car and using a rain making device built by the children proved that the concept worked very well.

After winning first prize at the annual ‘Jugend Forscht’ regional competition for science projects held in Julich, Germany, Ford has developed their idea into a full-sized test car. The innovation has global attention and the potential to be rolled out across the world, including Australia. Their thinking has inspired Ford engineers to look into ways to capture water from rain and condensation.


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