Strongly recommended

Watch electricity hit a fork in the road at half a billion frames per second

AlphaPhoenix

Why people recommend it

AlphaPhoenix experiment measuring how current spreads along a real wire, praised for showing visually that electricity propagates as an electromagnetic wave.

Watch for: Leads naturally into the follow-up video on impedance matching

In their words

An incredible video that seems relevant to your thoughts process: Watch electricity hit a fork ...

Attie on electronics.stackexchange.com, Dec 2024. CC BY-SA.

You might appreciate this YouTube video and it's 'parent' video, which comes to the topic of impedance matching organically through looking experimentally at how (DC!)

R.M. on electronics.stackexchange.com, Jun 2025. CC BY-SA.

If you liked this