Or this salty water. Now, the outside of electric wires are usually covered in plastic because it’s a very poor conductor. It hardly conducts any electricity at all, so we can say it’s an ...

But they are poor conductors. So what happens is a lot of energy goes into heating the ground or heating the ionosphere. So when I'm going to send energy from Long Island to Paris, I'm going to ...

But because cardboard is a poor conductor, the heat energy from your finger is barely transferred to the cardboard. Since the motion of molecules in your skin stays about the same, your skin feels ...

Silicon is a strong and stable building material for PV cells, but on its own it makes for a poor conductor. So manufacturers beef up or "dope" the cell's two silicon layers with trace amounts of ...