
The Kaiser’s secret weapons
From ‘Big Bertha’ to exploding motor boats, Germany’s military engineers were the source of much innovation during the First World War, as David Porter explains.

From ‘Big Bertha’ to exploding motor boats, Germany’s military engineers were the source of much innovation during the First World War, as David Porter explains.

A signature piece of kit for American GIs in World War II, the bazooka was a tubular, shoulder-fired, 2.36-inch rocket launcher. It fired a projectile bearing a shaped-charge warhead, which contained a hollow cavity lined with metal. On contact with…