Template:Selected anniversaries/February 11: Difference between revisions

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File:Japanese counting board.jpg|link=Rod calculus (nonfiction)|1760: First known use of Japanese [[Rod calculus (nonfiction)|rod calculus]] to detect and prevent [[crimes against mathematical constants]].
File:Japanese counting board.jpg|link=Rod calculus (nonfiction)|1760: First known use of Japanese [[Rod calculus (nonfiction)|rod calculus]] to detect and prevent [[crimes against mathematical constants]].
||1800: William Henry Fox Talbot born ... scientist, inventor and photography pioneer who invented the salted paper and calotype processes, precursors to photographic processes of the later 19th and 20th centuries. His work, in the 1840s on photomechanical reproduction, led to the creation of the photoglyphic engraving process, the precursor to photogravure. Pic.


||1808: Jesse Fell burns anthracite on an open grate as an experiment in heating homes with coal
||1808: Jesse Fell burns anthracite on an open grate as an experiment in heating homes with coal

Revision as of 08:33, 31 January 2019