Cold War Bunkers of AT&T Long Lines

Описание: This video describes the cold-war area nuclear protections built into AT&T (Bell) Long Lines communication shelters.

My Long Lines Videos:
The Wireless Network Before the Internet:    • AT&T Long Lines: The Wireless Network Befo...  
Waveguides and Antennas:    • AT&T Long Lines: The Waveguides and Antennas  
Power Plants, Batteries, and Generators:    • AT&T Long Lines: The Power Plants, Batteri...  

All content used in this video is in the public domain or qualifies as fair use for educational purposes.