1675 in science

none 1675 science 1675 The year 1675 in science and technology involved some significant events. Astronomy March 4 – John Flamsteed appointed as "astronomical observator", in effect, the first Astronomer Royal of England.Palmer Alan Palmer Veronica 1992 The Chronology of British History Century Ltd London 191–192 0-7126-5616-2Frances Willmoth Flamsteed, John (1646–1719) Oxford Dictionary of National Biography Oxford University Press 2004 http://www.oxforddnb.com/view/article/9669 2011-02-04 August 10 – King Charles II of England places the foundation stone of the Royal Greenwich Observatory near London. Giovanni Cassini discovers the Cassini Division in the rings of Saturn. Exploration April – The Antarctic Convergence is first crossed by English merchant Anthony de la Roché, who lands on South Georgia.Robert Headland The Island of South Georgia 2nd Cambridge University Press 1992 0-521-42474-7 Mathematics October 29 – German polymath Gottfried Leibniz makes the first use of the long s (∫) as a symbol of the integral in calculus. November 11 – Leibniz uses infinitesimal calculus for the first time to find the area under the graph of the function y=f(x). Physiology and medicine Antonie van Leeuwenhoek begins to use a microscope for observing human tissues and liquids. Technology February 25 – Netherlands scientist Christiaan Huygens files drawings of his invention of the balance spring, the key component to the accuracy of portable clocks and pocket watches, in a letter to the Journal des Sçavants. Births February 28 – Guillaume Delisle, French cartographer (died 1726) Deaths October – James Gregory, Scottish mathematician and astronomer (born 1638) October 27 – Gilles de Roberval, French mathematician (born 1602) November 11 – Thomas Willis, English physician (born 1621) approx. date – John Jonston, Polish naturalist and physician (born 1603) References Category:17th century in science Category:1670s in science