Re-invent the toilet winner!

A toilet that uses power from the sun to break down water and human waste into fertilizer and hydrogen has won the Reinvent the Toilet Challenge put on by the Bill and Melinda Gates foundation. The $40 million program aims to tackle the problems of water, sanitation,...

How to test a new toilet?

Last year the Bill and Melinda Gates foundation gave $3 million in grants to eight engineers to build a new type of toilet that functions without electricity or plumbing. More than 2.6 billion people across the globe lack access to clean toilets; this problem is so...