Modern Marvels Season 7 Episode 38
Line of Defense
Fortification evolved as man tried to defend his territory from attack. From fenced-in hills to walled cities to impenetrable forts, strongholds of the past echo the history of battles for territorial control. In a 2-hour special, we examine various historical defenses, including France’s Maginot Line, a defensive string of forts with enfilading firepower; the Atlantic Wall, 3,000 miles of shore fortifications built by Germany in WWII; and the North American Aerospace Defense Command (NORAD).
7 - 38Line of DefenseDec. 05, 2000- 7 - 37Plumbing: The Arteries Of CivilzationNov. 14, 2000
- 7 - 36Inventions of War.Nov. 08, 2000
- 7 - 35Power Plants.Nov. 06, 2000
- 7 - 34Death DevicesNov. 02, 2000
- 7 - 33Remote Operated VehiclesOct. 25, 2000
- 7 - 32Combat Training.Oct. 19, 2000
- 7 - 31London UndergroundOct. 18, 2000
- 7 - 30Suez CanalOct. 17, 2000
- 7 - 29Assembly LinesOct. 16, 2000
- 7 - 28Farming TechnologyOct. 15, 2000
- 7 - 27Machine ToolsOct. 09, 2000
- 7 - 26The Body ShopSep. 17, 2000
- 7 - 25Video Games: Behind The FunSep. 12, 2000
- 7 - 24The Maginot LineSep. 10, 2000
- 7 - 23China's Great DamAug. 22, 2000
- 7 - 22Aswan DamAug. 14, 2000
- 7 - 21TrucksAug. 03, 2000
- 7 - 20The Erie CanalJul. 31, 2000
- 7 - 19Banks.Jul. 27, 2000
- 7 - 18Gold Mines.Jun. 22, 2000
- 7 - 17BusesJun. 19, 2000
- 7 - 16TrafficJun. 12, 2000
- 7 - 15Race CarsJun. 06, 2000
- 7 - 14Private PlanesMay. 31, 2000
- 7 - 13Camping TechnologyMay. 25, 2000
- 7 - 12ConcreteMay. 08, 2000
- 7 - 11Disaster TechnologyApr. 17, 2000
- 7 - 10Police TechnologyMar. 15, 2000
- 7 - 9Office WondersMar. 14, 2000
- 7 - 8Great InventionsMar. 13, 2000
- 7 - 7PrisonsMar. 06, 2000
- 7 - 6Bridges.Feb. 29, 2000
- 7 - 5The PentagonFeb. 26, 2000
- 7 - 4Space Stations.Feb. 03, 2000
- 7 - 3The ChunnelJan. 11, 2000
- 7 - 2Tower BridgeJan. 10, 2000
- 7 - 1The City Beneath Our FeetJan. 03, 2000
