Bill Gates has unveiled a waterless toilet

He says it could save half a million lives.

Bill Gates changed the world of technology when he founded the tech giant Microsoft. Billions of dollars later, it appears that Bill is getting bored of dominating the world of technology, and instead he's going to change the way we use the toilet. He has invented a brand new toilet that intends to destroy harmful bacteria and prevent disease. The futuristic toilet doesn't need water or sewers and uses chemicals to turn human waste into fertilizer. Speaking at an expo in Tokyo about this new invention, Mr Gates said: "The current toilet simply sends the waste away in the water, whereas these toilets don't have the sewer. "They take both the liquids and solids and do chemical work on it, including burning it in most cases." He even held up a jar of human feces to emphasise his point. According to Sky News, Gates compared the change from traditional toilets to waterless models as similar to developments in computing around the time he founded Microsoft in the mid-1970s. He believes that lives would be saved as a result of the money saved in healthcare costs from the switch to a waterless toilet. The toilet, which is the brainchild of research projects funded by the Bill and Melinda Gates Foundation, is finally ready for sale after years of development.