Here's a
long (50 minute) video from National Geographic on technological advances that have made submarines what they are today. Looks pretty good:
You'll have to put up with the Brit-sounding narrator calling us "sub-MARE-in-ers" rather than "Sub-mar-EEN-ers".
Read the complete post at http://bubbleheads.blogspot.com/2013/04/national-geographic-video-on-submarines.html
Posted
Apr 21 2013, 08:20 AM
by
The Stupid Shall Be Punished