interestingengineering

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German engineering firm GICON has raised the world's tallest wind turbine to 365 metres in Schipkau, eastern Germany, using a telescoping lattice tower and bridge-building jacks to lift a 3.8 MW turbine to a 300-metre hub. We break down how it was built, why the wind up there is worth chasing, and the cost and yield questions it still has to answer when it switches on in November.

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China has put its first intelligent grain-leveling robot to work at a Sinograin depot in Beijing, taking over one of the dustiest, most exhausting jobs in grain storage. Spiral-bladed wheels carry it across loose grain without sinking, while laser radars and a central route planner keep a team of robots from colliding. Three robots can level a 1,400-square-metre granary in under a day, a job that took three workers three days.

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Tesla has finally unveiled its next-generation Roadster at SpaceX's test site in McGregor, Texas, where it drove upside down on a ramp, flipped in mid-air and leapt over a row of Teslas using cold-gas thrusters. The car comes in three versions, and the top Rocket trim, a one-seater that is not approved for public roads, is the one Tesla says can fly. Musk says production starts in 2028.