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6 AP-HP, Dèpartement d'Epidèmiologie et Recherche Clinique, Hôpital Bichat, Paris, France: APHP, Centre de Pharmacoèpidèmiologie, Paris, France: Univ Paris ...
JaredOwen on MSN6d
How an oscillating fan functionsEver wonder how a tabletop fan moves side to side? A simple 4-bar mechanism, hidden gears, and a clever pin system make it ...
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