(This is called the triboelectric effect, and it's the reason electrostatic dust filters work. It's also the ... the race to bring electricity into the home was well underway.

So we know grounding is important, but how does it work? Why does connecting to ... The Earth (ground) has a potential of ...

So, Greg, that circuit that we made, would that work in ... circuits at home? How do you think circuits have changed our lives? What would our homes have looked like before electricity was discovered?