I SAID WE NEED A BIGGER CANNON

https://en.wikipedia.org/wiki/Thomas_Jackson_Rodman

He spent about three years designing a 20-inch cannon (the largest he would create) and the work finally began on February 11, 1864. Using several of the arsenal’s furnaces, about 160,000 pounds of molten iron were cast into four separate molds, then a week of cooling followed, and the cannon was finished on a huge lathe specially built for this task. A railroad flatcar capable of holding the gun, and its large carriage weighing 36,000 pounds itself, were also made under Rodman’s supervision at the arsenal. While awaiting shipment to Fort Hamilton in New York Harbor, the large cannon drew spectators. On July 23, 1864, the Pittsburgh Gazette newspaper reported "Juveniles, aged from ten to fifteen years, were amusing themselves today in crawling into the bore on their hands and knees. A good sized family including ma and pa, could find shelter in the gun and it would be a capital place to hide in case of a bombardment…"[6]