In 1903 German Doctor Julius Neubronner used pigeons to deliver medications. When one of his homing pigeons lost its orientation in fog and mysteriously arrived well-fed four weeks late, Neubronner was inspired with the idea of equipping his pigeons with a camera to trace their paths, thus inventing the technique of aerial photography. This light-weight miniature camera (patented in 1908) was activated by a timing mechanism, thus capturing some really fascinating shots.