A look back at the winners of 'Invent a Chip 2017'

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Philipp Grube (18) from Immanuel-Kant-Gymnasium in Bad Oeynhausen won first prize of 3,000 euros for his toilet of the future. In public toilet facilities, digital access controls with automated entry and exit prevent congestion in the toilet room. The doors open without touching the door handles and the washbasins are also sensor-controlled. "Above all, this results in a higher standard of hygiene, optimized privacy and a high level of user-friendliness," he says. Second place, worth 2,000 euros, went to ...