Solenoid - electric Engine - How to make

This pulse motor runs at 7.5 volts, 180uA
3 ball bearings. 1 * 3 * 1 mm.
Runs for months.

[@electronic7979]

Very nice project 👍

[@josephqaqish2598]

beautiful work , in the coil

[@Buzzhumma]

Nice work Batman

[@elfe-guerrier]

Un super condensateur, à la place de la pile, ça marcherait aussi ?

[@user-nk1ez1ng4r]

Hello, how are you my friend? I saw what you did and I liked that. I have a simple idea, but it may change the fate of the electrical connection. If you can help me, I will not forget you. I hope you can communicate with me. Thank you.