Nice: A reusable tablet that kills bacteria in water. https://www.kqed.org/science/916677/stanford-develops-chiclet-sized-device-that-purifies-water-using-sunlight Nice: A reusable tablet that kills bacteria in water. On Facebook Related Posts:Graphene Device Sops Up Sunlight, Heats to 160 Degrees Celsius…Thinking about different aspects of location tracking in terms of...Interesting approach: Figure out exactly what makes a bacteria…Interesting: A "car-sized" meteor exploded in the atmosphere…