Faraday Cages

In 1836, scientist Michael Faraday observed that a charge on a conductor resides only on its surface and does not impact anything enclosed within. To demonstrate this, he coated a room with metal foil, had high-voltage discharges strike its exterior, and showed with an electroscope that no electric charge reached the interior. Today, any container made of a conductor that shields its interior from electric fields is called a Faraday cage. What common modes of transportation act as Faraday cages? Discuss

Source: The Free Dictionary