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How 3D Glasses Helped Win World War II

3D glasses may not be the most obvious warfare tool. But that’s exactly what it took for the Allies of WWII to outwit Hitler.

A BBC documentary reveals how they used three-dimensional photos to stop Nazi weapons of mass destruction before they could bomb Britain. Dubbed Operation Crossbow, the mission entailed Spitfire pilots photographing battlefield Europe. The photos were then sent to the Royal Air Force (RAF) Medmenham in Buckinghamshire to make sense of the hidden clues. Hitler was heavily investing in his new V weapons in the hope they could win him the war. Fortunately, Medmenham had a secret weapon of its own, a simple stereoscope which brought to life a detailed picture of the enemy landscape based on the tens of million photos taken by pilots from Britain’s RAF Photographic Reconnaissance unit, generating 36 million prints.

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