Viewing a single comment thread. View all comments

GreyEilesy t1_ja2gso9 wrote

Reply to comment by [deleted] in TIL about the only double barrel cannon in the world. When it was its first tested during the American Civil War, the chain snapped immediately and one ball tore into a nearby cabin, knocking down its chimney; the other spun off erratically and struck a nearby cow, killing it instantly. by ExpertPreference8481

From a simple google search, neither of those claims are true.

Ironclads were invented by the French navy and submarines have been designed multiple times since the 16th century. And even if you stretch it to only include metal submarines, there is the Brandtaucher which predates the confederacy by 10 years.

https://en.m.wikipedia.org/wiki/Brandtaucher

18