Why the wheel is round
Rotation
Biomechanical Phenomena
Human Anatomy & Physiology
Biomechanics
Life Sciences
Evolution
TECHNOLOGY & ENGINEERING
Science
"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 what our physical form cannot. Throughout history, h…
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