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Innovation (lemmy.world)
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[-] superkret@feddit.org 3 points 6 months ago

The theory I learnt in school was that they placed the bricks on a row of tree trunks that served as "wheels" or rather, a type of conveyor belt.
The trunk that was freed at the back by pulling the brick forward was placed in front again. Not sure if that's still the current theory.

this post was submitted on 04 Aug 2024
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