Old weird war technology like parachuting pigeons and and flying sharks

Peter Taylor was doing research at the UK's Imperial War Museums when he stumbled across the story of parachuting pigeons. In 1914, the British were seeking intelligence about German troop numbers and movement in Belgium. So they parachuted homing pigeons into the region from balloons and planes. Attached to the pigeons were instructions for civilians to write down what they had seen and then to allow the birds to fly back to base. Inspired, Taylor went on to collect unusual war stories and compiled them into two books, Weird War One: Intriguing Items and Fascinating Feats from the First World War and its sequel Weird War Two: Intriguing Items and Surprising Stuff from the Second World War.

"It was a mixture of proper research-talking to curators, reading books, trawling through the archives-and suitably strange research: for example, (mis)using the museum's database by typing in odd words for hours to see what came up ('Socks,' 'Disguise,' 'Secret,' 'Insect')," Taylor told Air & Space. "It's hard to have a completely sensible plan for finding strange and surprising things."

Below, an illustration of a propaganda idea involving flying machines shaped like sharks.