Each row of the wall is made from a set of 216 magnetic balls, the rows are 52, the wall is made in all by 11232 magnetic balls. Why did not I use all my magnetic balls? Because at some point the wall has collapsed 🙁 … but the most dramatic thing is that the […]

A small electromagnetic cannon, I hope you did not expect a devastating power 🙂 because it is a toy. With a copper coil in which the current of 2 lithium batteries passes with a voltage of 7.4 V, a magnetic field is obtained that repels the magnet that serves as a projectile. I thank Supermagnete […]