Have you ever wanted to block out signals, like to make sure your cellphone or other device is totally offline? In this video, MacGyver Technical Consultant Rhett Allain explains what a Faraday Cage is and how it works so that you can apply the principles at home. Don't miss the full episode that this Mac Hack comes from, "UFO + Area 51" (Episode 22, Season 2). Stream full episodes of MacGyver on CBS All Access.
