Funnily enough, we still don’t fully understand the mechanism by which static electricity is built up when rubbing things together. Professor Merrifield covers

Funnily enough, we still don’t fully understand the mechanism by which static electricity is built up when rubbing things together. Professor Merrifield covers this in a very approachable way here: https://youtu.be/0UZb07imNLU https://youtu.be/0UZb07imNLU. Skip to around 6:00 (or watch the whole thing, it’s well worth it)