I'm surprised no one's built a mechanical version of flappy bird using a differential analyzer[0]. With two disk integrators and some differentials it's possibl

I'm surprised no one's built a mechanical version of flappy bird using a differential analyzer[0]. With two disk integrators and some differentials it's possible to integrate the equation of motion for the vertical direction, because forward motion is constant this is all the 'computing' we need to do. We can sense hits to pipes using physical pipes and a feeler on a spring. We could use a looping set of pipes, but it should also be possible to do randomization too. A simple way to do this is to have a four sided rectangular block with different pipe configurations on each side. As it is looped around, it gets spun randomizing the orientation like a slot machine, and then we lock the orientation to one of the four. It might be difficult to carry out the integration fast enough. Although it would be funny if we ran it off a scooter engine to integrate at high speeds. [0]https://twobithistory.org/2020/04/06/differential-analyzer.html https://twobithistory.org/2020/04/06/differential-analyzer.h...