It’s an electromagnet pendulum analog circuit. Whether you’re building it, or just studying the schematics, this is a fun way to brush up on the non-digital side of the craft. The pendulum is ...

While technically not an electromagnet, it is possible to build a similar device that will weakly pull on copper and aluminum, and [Cylo] shows us how it works in a recent video you can see below.

Remember - these variables are controlled (or kept the same) because to make it a fair test ... the magnetic field and hence the stronger the electromagnet. Hazard Consequence Control measures ...