MODERN SCIENCE THEATER: The California Institute of Technology, otherwise known as Caltech, is a private research university that is working with the Bill & Melinda Gates Foundation to build a toilet ... more 
MODERN SCIENCE THEATER: The California Institute of Technology, otherwise known as Caltech, is a private research university that is working with the Bill & Melinda Gates Foundation to build a toilet that will improve sanitation in developing countries. less 
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