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.

Technical Drawing–Superb Shadowing, Steamship Boilers, 1880.

JF Ptak Science Books  Quick Post

Boiler511

This is another in a beginning series on superior draftsmanship in rendering technical, physical and biological objects.  The image–boilers for the RoyalMail  Steamshp Roslin Castle, published in The Engineer on 30 November 1880–is a very contained complexity, beautifully shadowed.  [The original is available for purchase at the blog bookstore.]

Which is a detail from this:

Boiler510

And from which also comes this detail:

Boiler512

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