You may have heard the term ball joint before and mistaken it for a ball and socket joint, which connects one bone to another. Ball joints on vehicles operate in much the same way, though. They ...
People battling debilitating arthritis in the shoulder are finding relief thanks to a revolutionary 'backward' ball and socket joint replacement. Traditional shoulder replacements use a ball-shaped ...
Ball and socket joints are useful, but making a part slide over the surface of a sphere, held by magnets, requires a lot of fiddling to get right. We admire persistence and nailing all the details.
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