History of Alexandria Severus after temporary abolition by Augustus. Monumental buildings were erected in Alexandria through the third century BC. The Heptastadion connected Pharos with the city and the Lighthouse of Alexandria followed soon after, as did the Serapeum, all under Ptolemy I. The Museion was built under Ptolemy II; the Serapeum expanded by Ptolemy III Euergetes; and mausolea for Alexander and the Ptolemies built under Ptolemy IV. The Ptolemies fostered the development of the Library of Alexandria and associated Musaeum into a renowned center for Hellenistic learning. Luminaries associated with the Musaeum included the geometry and number-theorist Euclid; the astronomer Hipparchus; and
The Fractal Geometry of Nature The Fractal Geometry of Nature The Fractal Geometry of Nature is a 1982 book by the Franco-American mathematician Benoît Mandelbrot. "The Fractal Geometry of Nature" is a revised and enlarged version of his 1977 book entitled "Fractals: Form, Chance and Dimension", which in turn was a revised, enlarged, and translated version of his 1975 French book, "Les Objects Fractals: Forme, Hasard et Dimension". "American Scientist" put the book in its one hundred books of 20th century science. As technology has improved mathematically accurate, computer-drawn fractals have become more detailed. Early drawings were low-resolution black and white; later drawings were higher