The gray sphere is about the size of a bowling ball. It's full of sensors and will allow more electricity to run through the power lines.

Sometimes when you touch something metal, you can get a little electric shock, even if it’s not connected to a power source. And it’s all because of static electricity. Static electricity is a ...

Both of these are caused by static electricity. And that’s what causes ... which flows between a cloud and the ground. And even ball lightning. When lightning happens, it heats the air to ...