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Episode 1235 min

How We Make Metal Strong Enough to Fly

How do you grow a piece of metal that can work inside a jet engine? Follow a turbine blade from a delicate wax pattern and ceramic mold to a single crystal of specialized alloy, complete with hidden cooling passages. A gentle exploration of the patient craftsmanship and surprising materials science behind flight.

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Take your time. The story starts when you’re ready.

Settle in. There’s nothing you need to remember.

Episode artwork for How We Make Metal Strong Enough to Fly

A note before you listen

Welcome back, my sleepy friends. Get comfortable, let your breathing slow, and follow along for as long as you like. If you drift off somewhere along the way, the story will keep you company.

Whenever you're ready

Something to wonder about.
Nothing to keep you up.

Find a comfortable corner. Let the day get a little quieter.
We’ll take it from here.