I show how I built the demonstrator for my systems & stability video.  It's an electromechanical pendulum, and it's kewl -- or it was, until I broke it making...

This is a self-answering post: if the picture below is moving, the answer is "yes, animated gifs do work".  The only remaining question is for Stephane, about whether...

@Tim Wescott just ported to his blog his famous 'PID without a PhD' article.If you are on Reddit and believe his article is worthy of an upvote, please feel free...

I have a need to connect nondestructively to an unpopulated header pin on a PCB. PCB thickness is typically 1/16" thick (1.59mm) but could be in the 3/64" - 1/10"...