Archive for category: Challenges

Bill Gates and Caltech reinvent the wc

Bill Gates and Caltech reinvent the wc

0 / January 6, 2014 7:00 am

The challenge “Reinventing the Toilet” was conducted during August 2013 as part of the efforts of the Bill & Melinda Gates, awarding $ 100,000 to the California Institute of Technology for a toilet that is capable of producing hydrogen and electricity