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Tinfoil is good for more than just making hats... 20th Century History (sh.itjust.works)
submitted 10 months ago by to c/historymemes@piefed.social
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In order to deceive Nazi Germany about the real target of the D-Day invasion, the Allies dropped literally tons of aluminium foil strips (then codenamed "Window", now known as Chaff) from aircraft to create the appearance of a large fleet moving across the English Channel towards Calais on German Radar screens just before the actual invasion started

Thanks to Bletchley Park reading German ciphers, Allied high command could watch the Germans fall for the deception almost in real time.

Allied Soldiers loading tin foil into airplane - Nazi German soldiers: "Herr Kommandant, ze Invasion Fleet haz been spotted on zeh Radar!"
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[–] 6 points 10 months ago*

I am not sure if the Nazis did but I read the Allied forces tried to conceal the fact that they invented radars by making up a saying that carrots improve your eye sight and that is how they were able to spot the German planes so far away. I am about 90%-ish sure of this fact

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