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German physicist Gabriel Daniel Fahrenheit (1686-1736) invented a scale for measuring heat that we used to this day. Water freezes at 32 degrees Faahrenheit (written 32°F where F stands for Fahrenheit) and water boils at 212°F. Understanding the Celsius Scale Swedish astrnomer Anders Celsius (1701-1744) invented another scale for measuring heat in 1742. His scale is known as the centigrade or Celsius scale. Anders Celsius based his scale on the freezing and boiling points of water. On the Celsius scale the freezing point of water is equal to 0 degrees Celsius or centigrade (written 0°C where C stands for Celcius). The boiling point for water, on the other hand, is located at 100°C on the Celcius or centigrade scale. The Fahrenheit scale is used mostly only in the United States. The Celcius or centigrade scale is utilized throughout the rest of the world and it is also the scale used by most scientists. Conversion Forumulas The formula for converting Fahrenheit to Celsius and Celsius to Fahrenheit is not very intuitive for most people. To convert from Fahrenheit to Celcius or centigrade you need to subtract 32 degrees from the Fahrenheit temperature and then multiply the difference by five. Finally divide the product by nine. See the formula below: ![]() To convert centigrade or celcius to Fahrenheit, multiply the centigrade temperature by nine and then divide the product by five. After you do that add 32 degrees to the total. See the formula below: ![]() |
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