Why the Wheel Is Round

There is no part of our bodies that fully rotates be it a wrist or ankle or arm in a shoulder socket, we are made to twist only so far. And yet, there is no more fundamental human invention than the wheel a rotational mechanism that accomplishes w...

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Böcker > Naturvetenskap & teknik > Matematik & Naturvetenskap > Biologi > Livsvetenskaper: allmänt > Utvecklingslära