Ele Willoughby, PhD on Nostr: in the world. In ‘40, spurred by tragic U-boat sinking of a boatload of refugees, ...
in the world. In ‘40, spurred by tragic U-boat sinking of a boatload of refugees, she put her mind to national defense. Torpedoes were guided by single frequency radio signals vulnerable to jamming. She had the idea that if multiple frequencies were employed, like a radio station which varied its channel unpredictably, it would be impossible to find & jam it & the signal could be encoded across a broad spectrum. The difficulty would be in synchronizing transmitter & receiver. 🧵3/
Published at
2024-11-09 13:15:13Event JSON
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