We sure wish we’d had a teacher like [Danko Bertović]. He built this beautiful circuit sculpture to teach his students how to count in binary and convert it to decimal and hexadecimal. If you… ...

[Osgeld] built himself a binary clock. He didn’t take the time to explain his project, but he did post beautifully hand-drawn schematics and pictures of the circuit (PDF) as he was building i… ...

Moreover, the mechanical logic gates and circuits can be executed simultaneously, giving rise to the prospect of a parallel logic processor in just a single mechanical resonator.

Let's take the example further, and convert each hexadecimal digit to its decimal equivalent and then add them: (16 2 x 1) + (16 0 x 15) + (16 0 x 4) = (256 + 240 + 4) = 500. Hex and binary in action.