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How it's made

Inside the factories. Real numbers, with sources.

How are everyday things made? LEGO's factory in Billund moulds 36,000 pieces a minute, accurate to two thousandths of a millimetre. KitKat makes 5,000 bars a minute and hides broken KitKats inside. Crayola turns out 12 million crayons a day in Pennsylvania. A marshmallow Peep once took 27 hours; now a machine does it in minutes. And Tesla builds its robotaxi in big chunks clicked together like Lego. Every story below links to its sources.

Stories

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