Swiss Researchers invent a new Toilet
22 universities and research facilities submitted proposals
to the Bill and Melinda Gates Foundation in 2011 for the 'Re-Invent the Toilet
Challenge' (RTTC). Goal of the competition: invent the toilet of the future!
Prerequisites: the new toilet should need no sewer and no outside energy
source, should be part of a recycling and treatment system for wastes and
should cost no more than five cents per day and person.