The bookcases in Johan Molenbroek's office are overflowing with volumes on ergonomics and biome-chanics. Over four decades, you build up quite a collection. "Students come here to borrow books and ask questions," he says. "The most recent query was about an operating table. A student had to design one suitable for hip surgery requiring the patient to lie in a strange position, their leg at a weird angle. The student was wondering if that was possible."
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