Useful lessons from Venezuela - s crumbling populist economy: Don Pittis, CBC News Current news in the economy Useful Giordano Bruno 1548 – 1600 https://en.wikipedia.org/wiki/Pascal%27s_calculator Paul Dirac 1902 – 1984 Carl F. Gauss 1777 – 1855 John von Neumann 1903 – 1957 Isaac Newton 1642 – 1726 David Hilbert 1862 – 1943 https://en.wikipedia.org/wiki/Calculator online calculator https://en.wikipedia.org/wiki/Calculator Archimedes 287 – 212 BC Nicolaus Copernicus 1473 – 1543 Carl F. Gauss 1777 – 1855 David Hilbert 1862 – 1943 James Clerk Maxwell 1831 – 1879 Gottfried Leibniz 1646 – 1716 Gottfried Leibniz 1646 – 1716 Lorenzo Avogadro 1776 – 1856 Albert Einstein 1879 – 1955 David Hilbert 1862 – 1943 https://en.wikipedia.org/wiki/Calculator Srinivasa Ramanujan 1887 – 1920 Archimedes 287 – 212 BC