I’m a personal trainer who's tested products for five years. Of the 14 fitness trackers I tested, the Fitbit Charge 6 and the Amazfit Bip 3 Pro emerged as the best for beginners and the best value, ...

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Machine Design distills the cutting-edge landscape of advanced manufacturing through the eyes of multidisciplinary engineers, covering technical insights on the foundational and emerging principles of ...

As one of the oldest components of human engineering, gears have driven civilization for thousands of years. But now, engineers at New York University in the US have given gears a new liquid twist.