Every day 100,000 flights criss-cross the globe with more than 1 million people in the air at any one time. Dallas Campbell and Dr Hannah Fry explore the world of aviation. Ep: 2 Dallas and Hannah discover some of the complex global networks and advanced technology that keep the world's aircraft in the skies. How do pilots find their way at night and how do you control the world's busiest airspace?

Originally released by PBS, 2017. Streaming video file encoded with permission for digital streaming by Infobase on June 01, 2018.

City In the Sky: Part 2 - Airborne (2:52); --Jet Men (3:13); -- Navigational System (3:27); -- Air Traffic Controllers (3:53); -- Medical Doctors (7:27); -- Cargo Movers (5:17); -- Super Terminal One (4:10); -- Carbon Composite (5:16); -- Aesthetic Design Uses (3:30); -- Simulated Lightning Strike (7:57); -- Safety Check (4:54); .