Big, Bigger, Biggest Season 2 Episode 2
Submarine
At 171 m long, the USS Pennsylvania is the biggest submarine in the US Navy. It can dive deeper than a thousand feet, sail for 20 years without refuelling, and remain submerged for up to six months. The vessel carries a crew of 155 men and a deadly nuclear arsenal. Uncover the innovations in six landmark submarines, including the tiny Turtle and colossal German U-boats, that made it possible for engineers to incorporate underwater breathing, torpedos, missile launch systems and stealth technology into ever bigger submarines.
- 2 - 10TelescopeSep. 22, 2009
- 2 - 9DomeSep. 22, 2009
- 2 - 8Cruise ShipSep. 15, 2009
- 2 - 7DamSep. 08, 2009
- 2 - 6Space StationSep. 01, 2009
- 2 - 5Sky WheelAug. 25, 2009
- 2 - 4Oil RigAug. 18, 2009
- 2 - 3AircraftAug. 11, 2009
- 2 - 2SubmarineAug. 04, 2009
- 2 - 1TunnelJul. 28, 2009