Since the 1940’s, the way battleships have measured wear on the 16in gun barrels has markedly changed. In order to prolong the life of the gun barrels, in the 1960’s they used what’s called the Swedish Additive. Watch the video to find out how this helped to reduce thermal stress. #militaryhistory #maritimehistory #interestingthings #history #navyships #ships #usnavy #battleship #historicships #philly #museumsoftiktok #shipsoftiktok #museumvisit #historymuseum | Battleship New Jersey

Vw mk1 - Martini MK1 rollin´on Air by MK1 Garage