The Ridiculous Engineering Of Jet Engines
Veritasium · 2 HN recommendations
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Veritasium explains how jet engines run hotter than their components' melting points, using cooling air and single-crystal superalloy turbine blades. It covers how the blades are grown as aligned crystals.
Why HN recommends it: Commenters send it to people asking how engines survive such temperatures, and call it fascinating and worth watching.
“is absolutely fascinating & well worth a watch” Read on HN ↗