This is neat! It’s an old video that explains how a car’s differential works to keep tires on different radius turns spinning together.

How a differential gear works — a-ha generating video – Boing Boing.

Posted by MikeS, filed under history, science, technology. Date: April 5, 2013, 1:46 pm | Comments Off on How a differential gear works — a-ha generating video – Boing Boing

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