• Fermion@feddit.nl
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    16 days ago

    Thermal insulation: yes

    There’s uncharred wood less than an inch from glowing embers. That temperature differential is kinda insane. Wood is a great thermal insulator. It just happens to also be a fuel.

    • shalafi@lemmy.world
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      16 days ago

      My forestry prof showed us pics where a steel I-beam had melted (bowed down), yet charred lumber was still structurally sound. Made me a believer.

      He was the same man who introduced the idea of “dead air space” as insulation to me. Yeah, that was a life changer. I understand so much more now.