The London Tube | I Didnt Know That

Follow Richard Ambrose and Jonny Phillips on an underground journey as they explore the London Tube and learn how to drive a tube train. Mind the gap! ➡ Subscribe: About I Didn’t Know That: Two industrial scientists, Richard Ambrose and Jonny Phillips, explain the science behind everyday life... from microwave ovens to beating a lie detector. Get More National Geographic: Official Site: Facebook: Twitter: Instagram: About National Geographic: National Geographic is the world’s premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what’s possible. The London Tube | I Didn’t Know That National Geographi