Nerd Streams
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Door closers: ubiquitous, yet unloved and often maladjusted
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How watches use tiny electromagnetic circuits to tick
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Most of the lead in your pencil ends up in the bin #science #maths
YouTube Video
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Tilting, taking turns, and winning free games: the many tricks inside old pinball machines
YouTube Video
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Your dishwasher is better than you think (tips, tricks, and how they work)
YouTube Video
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The Numitron: An obvious idea that wasn't very bright
YouTube Video
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Spintronics give a really great intuition for how inductors work
YouTube Video
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Awnings: a simple cooling tech we apparently forgot about
YouTube Video
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Passive infrared motion sensors: a two-bit camera powered by crystals
YouTube Video
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