How do submariners know how thick the ice is above them to gauge whether they can safely surface through it? - Quora
How much does a Los Angeles class submarine weigh? All I can find is displacement but what is the physical weight? - Quora
How do submariners know how thick the ice is above them to gauge whether they can safely surface through it? - Quora
How thick would the glass, plexiglass, etc. have to be for a submarine if even possible like on the Seaview? - Quora
![Mastering Physics Solution, "A research submarine has a 10-cm-diameter window that is 9.0 cm thick. - YouTube Mastering Physics Solution, "A research submarine has a 10-cm-diameter window that is 9.0 cm thick. - YouTube](https://i.ytimg.com/vi/Q__gnye1JAA/maxresdefault.jpg)