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The Ridiculous Engineering Of Jet Engines

Veritasium · explainer · Watch on YouTube

Aviation & aerospace engineeringMaterials scienceMechanical & precision engineering

What it is

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 Hacker News recommends it

Commenters send it to people asking how engines survive such temperatures, and call it fascinating and worth watching.

  • 2 people recommended it
  • 2 different months
  • 1 strong recommendations
  • first 2025, last 2026

What HN commenters said

  1. “is absolutely fascinating & well worth a watch”

    How turbine blades are grown as aligned single crystals

    beambot, 2026-07 · Strong recommendation · in “World-First 'Super Alloy' Could Transform the Way Metals Are Made”

  2. “he posted a deep-dive into the the engineering of jet engine turbine blades.”

    Deep dive into single-crystal superalloy turbine blade engineering

    hnuser123456, 2025-11 · Recommendation · in “NTSB Preliminary Report – UPS Boeing MD-11F Crash [pdf]”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: jet engines, superalloys, single crystal blades, turbine cooling, materials science, veritasium

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