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adele peters 4 minute read if you walk along the westerdok canal in amsterdam, you might not notice a line of bubbles moving across the surface. but underwater, a tube stretches along the bottom of the canal, pushing air upward. it's a pilot test of new technology, called the great bubble barrier , designed
that are drifting not only on the surface, but also underwater," says philip ehrhorn, the coinventor of the device, who works on technical development at the startup that created it, also called the great bubble barrier. an air compressor--connected to renewable energy from amsterdam's local grid--pumps...
https://www.fastcompany.com/90454481/a-simple-burst-of-bubbles-is-keeping-this-river-clear-of-plastic