Template:Selected anniversaries/August 28: Difference between revisions

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||1845: The first issue of ''Scientific American'' magazine is published ... published by Rufus Porter (1792-1884), a versatile if eccentric Yankee, who was by turns a portrait-painter, schoolmaster, inventor and editor. While the paper was still a small weekly journal with a circulation less than 300, he offered it for sale. It was bought for $800 in July 1846 by 20-year-old Alfred Ely Beach (1826-1896) as editor, and Orson Desaix Munn (1824-1907). Together, they built it over the years into a great and unique periodical. Their circulation reached 10,000 by 1848, 20,000 by 1852, and 30,000 by 1853. Pic.
||1845: The first issue of ''Scientific American'' magazine is published ... published by Rufus Porter (1792-1884), a versatile if eccentric Yankee, who was by turns a portrait-painter, schoolmaster, inventor and editor. While the paper was still a small weekly journal with a circulation less than 300, he offered it for sale. It was bought for $800 in July 1846 by 20-year-old Alfred Ely Beach (1826-1896) as editor, and Orson Desaix Munn (1824-1907). Together, they built it over the years into a great and unique periodical. Their circulation reached 10,000 by 1848, 20,000 by 1852, and 30,000 by 1853. Pic.
||1850: First submarine cable laid: ''Goliath'' laid the cable between Dover and Cap Gris Nez in France on 28 August 1850. Unlike later submarine cables, this one had no armouring to protect it. The single copper wire was protected only by the layer of gutta-percha insulation around it. This made it very light, and it was necessary to attach periodic lead weights to make it sink. Messages sent across the cable were unintelligible due to dispersion of the signal, a phenomenon which was not understood at the time, and would be an even greater problem to the first transatlantic telegraph cable. Dispersion was a problem not fully solved on submarine cables until loading started to be used at the beginning of the 20th century. Both ends of the communication assumed that the messages did not make sense because the other end was in the midst of drunken celebrations of their success. It was decided to try again in the morning. During the night a French fishing boat accidentally pulled up the cable. Thinking the cable was a strange form of seaweed, the fisherman cut a piece out of it. He believed the metal inside was gold. The cable was never put back into service. https://en.wikipedia.org/wiki/Submarine_Telegraph_Company Pic.


||1853: Vladimir Shukhov born ... architect and engineer, designed the Adziogol Lighthouse.
||1853: Vladimir Shukhov born ... architect and engineer, designed the Adziogol Lighthouse.

Revision as of 16:18, 23 February 2019