• Zetta@mander.xyz
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    25 days ago

    Char, just like how heat shields used to reenter the earths atmosphere work

    • usualsuspect191@lemmy.ca
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      25 days ago

      It’s also why a solid wood beam does better in a fire than steel. Once the outside is charred it shields the inside and the beam can keep a good bit of its strength before eventually failing once the outer layers get burned through. The steel heats up quickly and goes soft long before its melting point.