Toilet Design Takes the Cake

Solar-powered toilet wins big for innovative design
Toilet Design Takes the Cake
Caltech's solar-powered toilet and wastewater system prototype on display at the Reinvent the Toilet Fair hosted by the Gates Foundation.

Michael Hoffman, engineer and professor of environmental science at Caltech, and his colleagues were awarded $100,000 for their solar-powered toilet at the Reinvent the Toilet Fair, sponsored by the Bill & Melinda Gates Foundation.

“The foundation is convinced, along with other...

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