As basic as the lever or pulley, the simple concept called “Rolamite” promises a revolution in mechanical design. What’s a Rolamite? It looks like a simple gadget made with 2 rollers and a steel band, but it’s much more. As basic as the wheel, the lever, or the hinge, it is the only elementary machine discovered this century. Its use will be widespread — in everything from switches, thermostats, and valves to pumps and clutches, and as almost frictionless bearings.

this makes me wonder if there is a list of basic mechanisms? sort of like the atoms of language, or the most fundamental algorithms

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