7. Episode 7

0

. 22 min

Can a light aircraft crash due to low air density? What's the longest undersea tunnel a human can negotiate with no tanks? And how deep can a free-diver go? And hear some amazing examples of a sonic boom.

8. Episode 8

0

. 22 min

A cross between a ramp jump and a wall of death - It's tricky science. Find out why landing in crosswinds is one of the toughest challenges a pilot will face. And what is the best way to detonate an atomic bomb?