Veritasium’s “Why don’t jet engines melt?” unpacks how these beasts push air, squeeze it to insane pressures and temperatures, then extract power without turning into molten metal. You’ll see a full engine walkthrough, a trip inside Rolls-Royce’s precision casting facility and the material science magic—nickel-based superalloys, single-crystal blades and internal cooling channels—that make turbine blades survive 2,000°F airflows.
Along the way there’s a bit of history, crystal-structure animations and a sand-injection stress test to prove just how tough those blades are. By the end you’ll know why modern jet engines can run hotter than their metal parts’ melting point—and live to tell the tale.
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