Boiling point of water at 1 atmosphere, 99. Warm summer's day in a temperate climate, 22☌ Degree Calculator An online calculator to add and subtract two angles given in degrees, minutes and seconds (DMS) form.Melting point of ice, 0☌ (actually -0.0001☌).The scale was officially named as ‘The Celsius scale’ in 1948 to prevent confusion with the use of centigrade as an angular measurement. This new ‘forward’ scale was widely adopted across continental Europe, generally being referred to as the centigrade scale. Enter a value in any field to see the other values. In 1742, Celsius created a temperature scale wherein 0 degrees was the boiling point of water and 100 degrees the freezing point.Īround this time other physicists independently developed a similar scale but reversed, such that 0 degrees was the melting point of ice and 100 degrees the boiling point of water. The temperature calculator allows you to convert temperature degrees between Celsius, Fahrenheit, Kelvin, Rankine, Delisle, Newton, Réaumur and Rømer. The Celsius scale is named after the Swedish astronomer Anders Celsius (1701-1744). This can be seen because the temperature interval between 20☌ and 30☌ is the same as between 30☌ and 40☌, but 40☌ does not have twice the air heat energy of 20☌.Ī temperature difference of 1 deg C is the equivalent of a temperature difference 1.8☏. The Celsius scale is an interval system but not a ratio system, meaning it follows a relative scale but not an absolute scale. This means that 100☌, previously defined as the boiling point of water, is now defined as the equivalent to 373.15K. Zero on the Celsius scale (0☌) is now defined as the equivalent to 273.15K, with a temperature difference of 1 deg C equivalent to a difference of 1K, meaning the unit size in each scale is the same.
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