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submitted 2 weeks ago by Kathrin@trouth.eu to c/nocontextpics@lemmy.world

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[–] shalafi@lemmy.world 4 points 2 weeks ago* (last edited 2 weeks 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.