What is the difference between Celsius and Centigrade?
Celsius and Centigrade are one and the same. One term or the other is used in different countries. They relate to the “temperature scale that registers the freezing point of water as 0° and the boiling point as 100° under normal atmospheric pressure.” Celsius is named after the Swedish astronomer Anders Celsius, who developed the centigrade thermometer. The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. centigrade SYLLABICATION: cen·ti·grade PRONUNCIATION: snt-grd ADJECTIVE: abbr. C or cent. Celsius. See table at measurement. ETYMOLOGY: French : centi-, centi- + grade, degree (from Italian grado, rank, degree, from Latin gradus, step; see
Centigrade used the freezing point and boiling point of water to define 0 and 100. Celsius is a simple shift of the Kelvin scale by subtracting 273.15 degrees. The Kelvin scale uses the triple point of water as a standardization point. This is measurement is much more accurate than the freezing point of water. The Kelvin scale can then be shifted to make the 0’s on each scale line up. Below is text from the website below: In 1741 Anders Celsius, professor of astronomy at the University of Uppsala, Sweden, introduced a temperature scale with 0 the temperature at which water boiled and 100 the temperature at which water froze. Shortly after his death, the scale became known as the centigrade scale, but the fixed points were reversed, making 0 degrees the freezing point of water and 100 degrees its boiling point at atmospheric pressure.
Celsius and Centigrade are one and the same. One term or the other is used in different countries. They relate to the “temperature scale that registers the freezing point of water as 0° and the boiling point as 100° under normal atmospheric pressure.” Celsius is named after the Swedish astronomer Anders Celsius, who developed the centigrade thermometer. The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. centigrade SYLLABICATION: cen·ti·grade PRONUNCIATION: snt-grd ADJECTIVE: abbr. C or cent. Celsius. See table at measurement. ETYMOLOGY: French : centi-, centi- + grade, degree (from Italian grado, rank, degree, from Latin gradus, step; see ghredh- in Appendix I). Sources
Centigrade used the freezing point and boiling point of water to define 0 and 100. Celsius is a simple shift of the Kelvin scale by subtracting 273.15 degrees. The Kelvin scale uses the triple point of water as a standardization point. This is measurement is much more accurate than the freezing point of water. The Kelvin scale can then be shifted to make the 0’s on each scale line up. Below is text from the website below: In 1741 Anders Celsius, professor of astronomy at the University of Uppsala, Sweden, introduced a temperature scale with 0 the temperature at which water boiled and 100 the temperature at which water froze. Shortly after his death, the scale became known as the centigrade scale, but the fixed points were reversed, making 0 degrees the freezing point of water and 100 degrees its boiling point at atmospheric pressure. In 1887 the International Commission on Weights and Measures adopted “as the standard thermometric scale for the international services of weights and mea
