It seems so ordinary and simple, but it took early humans a long time to figure out the wheel from what I’ve heard and I can’t understand why.
In: Engineering
Because we didn’t have a use for the wheel, more specifically the wheel-axle, until other cultural developments like roads became more widespread.
Another fun fact about the wheel/axle: like most technology, it was invented once and spread throughout the world. It’s not a obvious thing that each culture comes up with, nor inevitable.
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