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 ...

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 ...

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 ...