Semi-OT: "watch electricity hit a fork in the road"

[BigEd]

In this video we see an experiment up, a high speed oscilloscope, and a rather informative animation made from the measurements. We actually see the flight time on a wire.

I've cued it up but if you want the quiz start from the beginning
https://youtu.be/2AXv49dDQJw?si=l8bc1zp4QA35pYqh&t=593