Meteorological instrumentation rain gauge. In 1714, Gabriel Fahrenheit creates a reliable scale for measuring temperature with a mercury-type thermometer. In 1742, Anders Celsius, a Swedish astronomer, proposed the 'centigrade' temperature scale, the predecessor of the current Celsius scale. In 1783, the first hair hygrometer is demonstrated by Horace-Bénédict de Saussure. In 1806, Francis Beaufort introduced his system for classifying wind speeds. The April 1960 launch of the first successful weather satellite, TIROS-1, marked the beginning of the age where weather information became available globally. This was also used to measure the temperature of the surrounding air. A thermometer measures air temperature, or
Uppsala University as leader of the ecumenical movement. The university became prominent in the sciences in the 18th century with names such as the physician and botanist Carl Linnaeus (1707–1778), the father of biological and mineralogical taxonomy, and his numerous important pupils, the physicist and astronomer Anders Celsius (1701–1744), inventor of the Celsius scale the predecessor of the Celsius scale, and the chemist Torbern Bergman (1735–1784). Another scientist from this era is Emanuel Swedenborg (1688–1772), better remembered today as a religious mystic. Several of the elements were discovered by Uppsala scientists during this period or later. Jöns Jakob Berzelius, one of the