A video of two Galapagos tortoises mating ('imagine one sack of coal trying to climb onto the back of another sack of coal') is one of nine exhibits at the Baltic, Gateshead, that convinces art critic Waldemar Januszczak that art can bring something to the Darwin celebrations ('a mood, not a calculation; a spirit, not a result') that eludes science.
Swarm of nanorobots can remove tiny plastic fragments from water
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In just 2 hours, small metal robots can capture most nanoscopic plastic
particles from a sample of water
8 hours ago
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