(Our pal, Camber, the old son-of-a-gun, found this one in his email box. It's been circulating on the net. Is it myth?) In the heyday of sailing ships, all war ships and many freighters carried iron cannons. Those cannon fired round iron balls. It was necessary to keep a good supply near the cannon. But how to keep them from rolling about the deck....?(snip) Click here to read complete article.