/sci/ - Science & Math

I was given an assignment at my high school do do a physics project/ presentation about whatever subject I liked and I decided to make it about electromagnetic force. In one part of my project I decided to kind of showcase the different scales of sources of electromagnetic force or radiation or whatever. So far I can only think of quasars and gamma rays (the biggest ones) but I want to make it so that it gradually progresses to bigger and bigger ones starting from pretty ordinary stuff.


Any smaller- scale suggestions would be welcome. Also please provide me with some information about the units I can use to showcase such force.

Please keep in mind I'm not any good in physics but what I'm creating is more kinda like a Kurzgesagt video, so please be considarate.