For almost a century, until the 1960s, soda bottles in the US were generally meant to be returned.
"We have to try and test to find this optimisation of friction, of back-driveability," says David Kehr, president of humanoid robotics. "It's really a big puzzle."
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Фото: Илья Наймушин / РИА Новости
Temnothorax kinomurai queens survive by invading the nests of a related ant species and co-opting its workers.