Ash vs. Sand: The Deadly Difference
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But wait—if ash is just rock dust, why is it worse than ordinary sand? Sand erodes too, yet planes fly through dust storms. The difference is melting point. Sand's silica melts far above engine temperatures, so it only scratches. Ash's glassy particles melt far below, so they don't just scratch—they transform. Full video — Why Volcanic Ash Melts Inside Jet Engines: https://www.youtube.com/watch?v=55Uo9XRMGNw
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