Topic: Gates Foundation

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Hydrophobic metal made with laser-etched microscopic patterns

Scientists from the University of Rochester have created water-repelling metal by laser-etching nanostructures into the surface. Watch as water droplets bounce like water balloons off of the metal's super-hydrophobic ...

Turn human waste into drinking water – Janicki Omniprocessor

"The water tasted as good as any I’ve had out of a bottle. And having studied the engineering behind it, I would happily drink it every day. It’s that safe." This huge, potentially game-changing machine, invented ...

Poop Guy: A dad who is revolutionizing sanitation in Pune, India

Swapnil Chaturvedi refers to himself as the Chief Toilet Cleaner, and is known as “Poop Guy” in the community of Pune, India. Officially, he’s the founder of Samagra Sanitati...