14. A Good Idea in Theory, but a Failure in Practice

Antonio Petrini’s idea was good in theory, but it failed in practice. In order to work, the gunpowder in each barrel had to ignite simultaneously – extremely difficult even with modern technology, and nearly impossible in the 1600s. A difference of a tiny fraction of a second would send one ball ahead of the other, to whip around the muzzle and scythe the cannon’s crew instead of the enemy. So Petrini dropped the project. However, the concept of a double-barreled cannon continued to crop up from time to time in subsequent centuries, as tinkerers with mayhem on their minds sought to transform it into a practical reality. One such instance occurred in 1862, when a dentist named John Gilleland raised money from the Confederate citizens of Athens, Georgia, to make a double-barreled chain cannon.



