Meteorology known as the first "anemometer". In 1607, Galileo Galilei constructed a thermoscope. In 1611, Johannes Kepler wrote the first scientific treatise on snow crystals: "Strena Seu de Nive Sexangula (A New Year's Gift of Hexagonal Snow)". In 1643, Evangelista Torricelli invented the mercury barometer. In 1662, Sir Christopher Wren invented the mechanical, self-emptying, tipping bucket rain gauge. In 1714, Gabriel Fahrenheit created 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 was demonstrated by
Anders Grøndal Anders Grøndal Anders Grøndal (born 4 March 1984) is a Norwegian rally and hill climb driver. His co-driver is Trond Svendsen. He has so far won: 5 Norwegian championship gold, 3 Norwegian championship silver, 2 Norwegian championship bronze Anders Grøndal is the third generation rally driver in his family. He grew up with motorsport. His grandfather Nils Fredrik Grøndal and father Stein Grøndal were active rally and rally cross drivers. His uncle Knut Fredrik Grøndal was also a Norwegian hill climb champion. In 2002 Anders and the team visited former works driver John Hauglands Rally School to see what the