We also "draw" people putting a spin on the tennis ball to make it spin around the side of the net from central court and land in the other court today. Just because the media of the time showed something doesn't mean that it is true. Forts fired super-heated shot to help start fires on ships, but not explosive shot. When a cannon ball hits the wooden side of a ship, it causes some kind of "explosion" where splinters and dust fly everywhere (and usually didn't damage a ship nearly bad enough to sink the ship, most damage was crew and rigging damage). Painters who knew very little about life at sea may have been enthralled with the majestic sihps and such and exagerated details.
It is not uncommon for popular and supposedly relyable media sources to be completely off in their interpretations of things. Popular Mechanics frequently refer to a phenamena in which a pocket of air is trapped under the wing of an airplane blah blah blah. This is completely unscientific and such and as an aerospace engineering student, I can confidently claim it as false. In the same way, the media in the past may not have always been very accurate. I would not trust the media of the 7th century as a source for fact. Historians always refer to archeological finds, military letters, records, etc. and very rarely if ever do they refer to a painting to prove their point. Can you trust paintings from the 19th century of davy crocket's adventures to tell you what was true about the 19th century? Absolutely not. It would be absolutely ridiculous to assume that because someone painted something ridiculous happening with davy crocket in the 19th that it really happened.
Historians used media from a time period to tap into the culture of the time period and not to prove fact.
And plus if bombs were used in a cannon ever, the battle line would be much less effective. The bombs would render the heavy armor of the battleships very inaffective and the hulls of even the toughest ship of the line would be torn to shreads in only a broadside or two (if the hulll was itself was not torn apart, the internals would be and there would be nothing left to fight with). Why did the ships last long enough to move into boarding actions? They weren't using bombs. And if other ships were using bombs, why would the navies of the world who needed the firepower the most not use them. It seems quite logical that bombs were not used.
I did not know you could get bombs from the fort though. I will not use any though. I like chainshot anyway <img src="style_emoticons/<#EMO_DIR#>/smile2.gif" style="vertical-align:middle" emoid="
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