Interesting. So in the frame of reference of the electrons, the protons are moving and so closer together due to length contraction, and in the frame of referen

Interesting. So in the frame of reference of the electrons, the protons are moving and so closer together due to length contraction, and in the frame of reference of the protons, the electrons are moving and so closer together due to length contraction. When the cat in the video is stationary, it's in the same frame of reference as the protons, and with the electrons closer together will see a net negative charge and be attracted to the wire. I suspect that this argument is incorrect, however.