zondag 22 september 2019

Morse code has an amazing 175-year history, and is still used in the digital age https://t.co/KniauV2oi9 #technology https://t.co/I2YtsuHwkS #EUInternationalAcademy RT https://t.co/ab5v8qKXCI https://t.co/qWIOZSLIDf #stijnonline #euiapress


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