Energy

Machines that harvest, store and deliver energy.

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  Inside a wind turbine

  A 3 MW geared turbine with a 100 m rotor, 24 parts. Start it in a rising wind, then follow a runaway after a pitch failure.

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  Inside a lithium-ion pouch cell

  A 60 Ah electric-car cell, 18 parts from the pouch down to a 300× view of the electrodes. Drive and fast-charge it, then see lithium plate out in the cold.

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