The front cover of the book is pictured below:
Veritasium: Why Does an Escalator Handrail Move Faster Than the Stairs?
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The surprising science of escalators. ▀▀▀ A huge thanks to the team at
OTIS, especially Ed Jacovino, Gregory Sefcik and Dirk Winkelhake, for their
time and...
14 hours ago
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