The music of the Spheres | Andrew Brown

Kepler founded modern astronomy by looking for a harmony that we wouldn't recognise as scientific at allPaper darkens as it grows old, but vellum just goes duller white, like the belly of a snake: looking at some of the manuscripts through which learning made its serpentine passage across the medieval world makes it obvious that you couldn't call those ages "dark". The library of The Royal Observatory in Edinburgh holds one of the finest collections of early astronomical books and manuscripts in the world, collected by Lord Crawford in the 19th century. He left them to the city on condition that they built an observatory to house them. Being civilised, the city fathers did. So there I was on Tuesday, touching the vellum of a 13th century manuscript of Alhazen, another of Aristotle, and then a first edition of Copernicus' De Revolutionibus and one of Kepler's Nova Astronomia. In the...

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