On 2/26/2025 at 10:22 PM, M S La Moreaux said:

Consider a current carrying circuit with a straight side.  Because of length contraction, in the straight side the moving electrons will appear closer together than they would be if there were no current.  This gives a greater charge density, so the straight side should have a negative charge.  But this is not observed.  How come?

That's nothing.

If you have a spaceship that is travelling faster than the electricity in its circuitry how can they work? 

!

Moderator Note

Not sure if you’re being obtuse or a smart-aleck or are clueless about relativity.

If you seriously don’t know how electronic circuits can work in a fast-moving rocket, start a thread to ask. Don’t hijack someone else’s discussion.