Editing Torpedo (section)

===Contact detonation===
When a torpedo with a contact fuze strikes the side of the target hull, the resulting explosion creates a bubble of expanding gas, the walls of which move faster than the [[Speed of sound#Speed of sound in liquids|speed of sound in water]], thus creating a [[shock wave]]. The side of the bubble which is against the hull rips away the external plating, creating a large breach. The bubble then collapses in on itself, forcing a high-speed stream of water into the breach which can destroy [[Bulkhead (partition)|bulkhead]]s and machinery in its path.<ref name ="Branfill_Cook_2014">{{cite book |last=Branfill-Cook |first=Roger  |date=2014 |title=Torpedo: The Complete History of the World's Most Revolutionary Naval Weapon |url=https://books.google.com/books?id=Fk2uBQAAQBAJ&pg=PA157 |publisher=Seaforth Publishing |page=157 |isbn=978-1848322158 }}</ref>