Anders Celsius defined the temperature scale by using the freezing and boiling points of water as reference points. He assigned the freezing point of water as 0 degrees and the boiling point as 100 degrees on his scale.
Celsius' temperature scale is significant because it is widely used as the standard unit for measuring temperature in most countries around the world. It is also used as the base unit for the International System of Units (SI) for temperature measurement.
No, Celsius' original scale actually had a reversed range compared to the modern scale. In his scale, 0 degrees represented the boiling point of water and 100 degrees represented the freezing point. The scale was later reversed by Carolus Linnaeus, a colleague of Celsius, to match the modern range we use today.
Yes, Celsius also used the body temperature of a healthy human as a reference point on his scale. He assigned this point as 100 degrees, which is why some people refer to a fever as having a temperature of 100 degrees.
The Celsius scale became dominant due to its simplicity and widespread use. It was widely adopted by scientists and countries, and it was also the chosen scale for the International System of Units (SI), which further solidified its dominance.