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His work on friction originated in studies of the rotational resistance of axles and the mechanics of screw threads, but he also saw how friction was involved in many other applications." One page, "from a tiny notebook (92 x 63 mm) now in the Victoria and Albert Museum in London, dates from 1493" and "contains Leonardo’s first statement of the laws of friction," sketches of "rows of blocks being pulled by a weight hanging over a pulley – in exactly the same kind of experiment we might do today to demonstrate the laws of friction." "While it may not be possible to identify unequivocally the empirical methods by which Leonardo arrived at his understanding of friction," Hutchings writes in his paper, "his achievements more than 500 years ago were outstanding.
He made tests, he observed, and he made powerful connections in his thinking on this subject as in so many others." By the year of these sketches Leonardo "had elucidated the fundamental laws of friction," then "developed and applied them with varying degrees of success to practical mechanical systems." And though tribologists had no idea of Leonardo's work on friction until the twentieth century, seemingly unimportant drawings like these show that he "stands in a unique position as a quite remarkable and inspirational pioneer of tribology." What other fields of inquiry could Leonardo have pioneered without history having properly acknowledged it?
Davis was “not a patient man,” jazz historian Dan Morgenstern remarks, “and I think he got impatient with himself just as he did with other people.” Jazz and other forms of music have been immeasurably enriched by that impatience.
Other bop eccentrics—like John Coltrane—brought their own personality quirks and personal struggles to bear on their styles, pushing toward new insights and experiments that shaped the future of the music.
Their peer Thelonious Monk, writes Candace Allen at , “the jobbing musician who couldn’t, more than wouldn’t, conform to the conventions of the job," seemed the odd man out.
Equally unsurprisingly, the press preferred la scandal to la réalisation scientifique. The fires of radium which beam so mysteriously..just lit a fire in the heart of one of the scientists who studies their action so devotedly; and the wife and the children of this scientist are in tears....
—Le Journal, November 4, 1911 There's no denying that the affair was painful for Langevin’s family, particularly his wife, Jeanne, who supplied the media with incriminating letters from Curie to her husband.