Chapters:00:00 Why Submarines are like glass cannons01:11 How Submarines are tracked using sound03:34 Why diesel submarine are stealthier than nuclear submarines05:20 That time two submarines collided underwater07:13 Why submarines need to stay lower in the Arctic compared to the equator08:39 How can airplanes hunt submarines?09:07 Can submarines be detected when they stick out their periscope?10:01 How to destroy a submarine once it’s detected12:28 Why submarines sometimes trail a really long wire