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Is your olive oil fake? How to detect counterfeit pantry staples

Think you're drizzling pure liquid gold on your salad? There's a chance you're actually pouring something much less precious.
Hackaday

Sound And Water Make Weird Vibes In Microgravity

NASA astronaut [Don Pettit] shared a short video from an experiment he performed on the ISS back in 2012, demonstrating the effects of sound waves on water in space. Specifically, seeing what happens ...