A Daily History of Holes, Dots, Lines, Science, History, Math, Physics, Art, the Unintentional Absurd, Architecture, Maps, Data Visualization, Blank and Missing Things, and so on. |1.6 million words, 7500 images, 4.9 million hits| Press & appearances in The Times, Le Figaro, Mensa, The Economist, The Guardian, Discovery News, Slate, Le Monde, Sci American Blogs, Le Pont, and many other places… 5000+ total posts since 2008.
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JF Ptak Science Books Quick Post
This is perhaps one of the most beautiful engravings found in the military textbook by Johann Choura, Lehrbuch der Geometralzeichnens fuer id K.K. Militar-Realschulen, which is a work printed in Vienna in 1879. Its actually from the second volume, which is Darstellende Geometrie, a course on applied geometry for the engineering student in a military-minded advanced school. It is not-so-simple and a lovely work of techArt.