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  • Toilets of the future compete for Gates Foundation prizeadd to reading list  

    Posted on August 14, 2012 at 4:47 PM

    Updated Friday, Jan 4 at 10:45 AM

    These aren’t your typical loos. One uses microwave energy to transform human waste into electricity. Another captures urine and uses it for flushing. And still another turns excrement into charcoal.

    By Associated Press
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