Hazel Picking, who has died aged 100, was a visual signaller in the WRNS during the Second World War. As a Girl Guide, Hazel Roberts (as she was born) had been good at Morse and semaphore, and, coming ...
The Daily Galaxy on MSN
Earth’s radio bubble: How far have our signals really traveled?
The journey of Earth’s radio signals began over a century ago, following the first intentional broadcast by Reginald Aubrey ...
Morse code, the language of the telegraph, is a system of communication that's composed of combinations of short and long tones that represent the letters of the alphabet. The tones are sometimes ...
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