 The earth's air temperature is a very important weather condition because of how it affects other weather conditions. Air temperature is measured using different types of sensors, such as the dry bulb thermometer, the resistance thermometer, and the wet bulb thermometer.
The temperature is measured in either the Fahrenheit (F) or Celsius (C) scale. The Celsius scale is used worldwide, except in the United States where the Fahrenheit scale is commonly used. The Fahrenheit scale was created in 1714 by Gabriel Daniel Fahrenheit, a German physicist, who also invented the alcohol and mercury thermometers. On this scale, water freezes at 32° and boils at 212°. The Celsius scale was created by Anders Celsius, a Swedish astronomer, in 1742. On this scale, water freezes at 0° and boils at 100°. It was originally called the Centigrade ("100 divisions") scale; however, in 1948, the Ninth General Conference on Weights and Measures replaced "degree centigrade" with "degree Celsius". |
