RE: Optical telegraph from the time of the Napoleonic war

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dindar (63)in #norway • 7 years ago

Great to learn about optical telegraph which was used during war time. Nice history you have shared @siggjo
Thanks for the learning article.

7 years ago in #norway by dindar (63)

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siggjo (64) 7 years ago

Thanks for your comments about the optical telegraph @Dindar
Nice that you like this history since more than 200 years ago.

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