Today marks the birthday of Sir Barnes Wallis who was a military engineer and aircraft
designer. His most notable work was creating the 9000-lb bouncing "dambuster" bombs of
WW2. These bombs were specifically engineered to destroy the German Mohne and Eder
dams on the 17th May 1943. The innovative cylindrical bombs were released by a
specially-formed RAF 617 Squadron. At a low altitude and high speeds, rotating the bombs
backwards it would cause the bombs to bounce along the surface of the water, right up to the
base of the dam (Sir Barnes Wallis was inspired by people skipping stones as a pastime).