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
Celsius 41.11 "Celsius 41.11" took place at the Loews theatre in Georgetown (Washington, D.C.) on September 28, 2004 and was attended by the author Jerome Corsi and the sister of the pilot whose plane crashed into the Pentagon on September 11, Debra Burlingame. "Celsius 41.11" was also shown at the first Liberty Film Festival. Both Lions Gate Entertainment (the distributors of "Fahrenheit 9/11") and Fox Searchlight (which specialises in the distribution of independent films) declined the opportunity to distribute the film to cinemas. David Bossie, the film's executive producer, believed that the distributors rejected the film on ideological grounds, whilst Lionel Chetwynd