11 Top-Rated Tourist Attractions in Austin - Easy Day Trips, PlanetWare Austin texas tourist info 11 Top-Rated Touris pi Nicolas Carnot 1796 – 1832 Johannes Kepler 1571 – 1630 Gottfried Leibniz 1646 – 1716 Gottfried Leibniz 1646 – 1716 Lorenzo Avogadro 1776 – 1856 Dmitri Mendeleev 1834 – 1907 Antoine Lavoisier 1743 – 1794 Archimedes 287 – 212 BC scientific calculator ln(exp(pi / 7)) Pythagoras 570 – 495 BC David Hilbert 1862 – 1943 Grigori Perelman *1966 Niels Bohr 1885 – 1962 Max Planck 1858 – 1947 Michael Faraday 1791 – 1867 Joseph-Louis Lagrange 1736 – 1813 ln(exp(pi / 7)) Euclid 300 BC Andrey Markov 1856 – 1922 John von Neumann 1903 – 1957 Isaac Newton 1642 – 1726