3 ms·
> Also, I have no idea how they would know where they're currently located (again, no GPS).. US Naval Submarines have done this for a long time. http://en.wik
by epochwolf 14y ago
> Also, I have no idea how they would know where they're currently located (again, no GPS)..
US Naval Submarines have done this for a long time.
http://en.wikipedia.org/wiki/Inertial_navigation_system http://en.wikipedia.org/wiki/Inertial_navigation_system
- Nrsolis 14y agoAnd they are good at it. I spent some time on a submarine and navigation is one of the most critical things to the cruise.