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
100 Degree Celsius (film) 100 Degree Celsius (film) 100 Degree Celsius is a 2014 Malayalam film written and directed by Rakesh Gopan. A women-centric thriller scripted by Rakesh Gopan, it stars Shwetha Menon, Meghna Raj, Bhama, Ananya and Haritha Parokod. Based on a real-life incident, "100 Degree Celsius" revolves around the lives of five women - a housewife, banker, IT professional, TV reporter and a college student. The film started shooting in June 2013. "100 Degrees Celsius" will be Malayalam cinema's first two-part film. It is produced under the banner of R.R. Entertainments. Cinematographer is Satyanarayanan and music director is Gopi Sundar. Debutante director