168
July 2, 2025
Jack Kelly joins Alan on this episode of AMSEcast to talk about his book Gunpowder: Alchemy, Bombards, and Pyrotechnics. They discuss gunpowder’s accidental invention in 10th-century China and its explosive mix of saltpeter, charcoal, and sulfur. Kelly explains how gunpowder shaped science and warfare, fueling revolutions in physics, ending the era of castles, and powering colonial empires. Though once too expensive for civilian use, gunpowder later drove mining and infrastructure projects befor...