I am writing this during a cold snap in December, which in the Northeast U.S. means temps in the low 20-degree F range. During my morning walk, an acquaintance returned my hello outside the coffee shop with a nod and the pithy “Cold enough to freeze the balls off a brass monkey.” The words hung for a moment, both in the air, due to his frosty breath, and in my mind, due to something I’d once heard.
Back in the Age of Sail, crew sometimes stowed cannonballs in pyramidal stacks beside the cannon. You’ve seen this. The top level of the stack had one ball, the next level down had four, the next had nine, the next had 16, and so on. Four levels would provide a stack of 30…
