The Astronomers Tycho Brahe and Johannes Kepler

Mathematician at the court-in-exile of the Holy Roman Emperor, Rudolf II, in Prague. He was arrogant, conceited, and obnoxious. While at university he had a duel with a fellow student over which one was the best mathematician. Tycho may have been the superior mathematician, but he was not the better duelist: during the encounter he lost his nose,

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Birds and Frogs - American Mathematical Society

Meanwhile, the mathematician Roger Penrose discovered the Penrose tilings of the plane. These are arrangements of parallelograms that cover a plane with pentagonal long-range order. The alloy quasi-crystals are three-dimensional analogs of the two-dimensional Penrose tilings. After these discoveries, mathematicians had to enlarge the

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Alice’s Adventures in Wonderland

Alice’s Adventures in Wonderland Lewis Carroll With illustrations by John Tenniel This .pdf file was made available through Lenny’s Alice in Wonderland site:

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Riemann Surfaces - University of California, Berkeley

Riemann Surfaces Dr C. Teleman1 Lent Term 2003 1Originally LATEXed by James Lingard | please send all comments and corrections to teleman@dpmms.cam.ac.uk