HOW IT WORKS: Morse Code
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19:26
Comment fonctionnait la machine Enigma ?
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16:54
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10:04
A Century of Morse Code Keys
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14:40
More Bizarre Attempts at Perpetual Motion Machines
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6:25
Why 17 Million Telegrams Are Still Sent Every Year
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40:46
Trump finira-t-il son mandat?
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16:59
Un bruit de démarrage de vieux moteurs rares qui vous épatera les oreilles ▶3
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8:44