Bill Gates may have found a new way to change people's lives.

Tag along with the Microsoft co-founder as he tours something called the Omniprocessor, "an ingenious machine...which turns human waste into water and electricity. In places without good waste treatment plants, it could be a real game-changer."

The process is, ahem, watered down, to a two-minute explanation that most of us can understand and shows real promise for helping developing countries which may not have access to clean water.

The best part? The whole process only takes a few minutes.

Anyone care for a glass of Poo-land Spring?