difference between celsius and centigrade
The terms “Celsius” and “Centigrade” are often used interchangeably, but they actually refer to the same temperature scale. Despite their similarity, there is a subtle difference between the two that has historical significance. Understanding this difference can help clarify the origins and usage of the Celsius scale.
The difference between Celsius and Centigrade lies in their historical context. The Celsius scale, also known as the centigrade scale, was established by Swedish astronomer Anders Celsius in 1742. The scale was designed to have 100 degrees between the freezing and boiling points of water. However, Celsius originally defined the freezing point as 0 degrees and the boiling point as 100 degrees, which is the opposite of the current convention.
In 1948, the 9th General Conference on Weights and Measures (CGPM) officially renamed the scale in honor of Anders Celsius. This led to the distinction between “Celsius” and “Centigrade.” The term “Centigrade” was used to describe the original scale, while “Celsius” became the standard name for the temperature scale.
Today, the Celsius scale is widely used around the world, particularly in scientific and meteorological applications. It is the official temperature scale in most countries, including the United States. The centigrade scale, on the other hand, is no longer used in scientific literature and is considered outdated.
In summary, the difference between Celsius and Centigrade is primarily a matter of historical context. The Celsius scale, as we know it today, was originally called the centigrade scale, but the name was changed to honor Anders Celsius. While both terms refer to the same temperature scale, “Celsius” is the preferred term in modern usage.
