Best Inventions of the Year 2012

Robots, indoor clouds, at home HIV kits and the rest of 2012's most important innovations, from the affordable to the extreme!

Freelance designer Gabriele Diamanti even created this solar-powered distiller for use in coastal areas in the third world that are deprived of freshwater. It is half as expensive and 67% more efficient than existing models, and his hope is that local manufacturers will adopt the open-source design and mass-produce it for local populations.