gears exist in nature (cricket legs, IIRC) lever exists (bone spurs as attachment points for tendons, extending the effective lever arm) chain is definitional - do molecular bonds count as joins? wheel also definitional - does whole organism count? https://en.wikipedia.org/wiki/Rotating_locomotion_in_living_systems#Known_instances_of_rotation_in_biology …https://twitter.com/tmwaring/status/1101140497966526465 …
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"you'd spent time thinking "so, if TJIC ..." " ... well I hadn't THEN!
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