Degree Celsius

18th century Sweden astronomer Anders Perseus Anders Celsius (1701-1744) was founded in 1742 Temperature scale In order to avoid measuring low temperature when it occurs Negative value , in order to Standard atmosphere The water below has a melting point of 0 degrees and a boiling point of 100 degrees ^{[2 ]} . There was no °C symbol. This is the opposite of the current Celsius temperature scale In use, people feel very inconvenient.

Some later scientists changed it to the boiling point of water of 100 degrees at 1 atmosphere of pressure, Ice-water mixture The temperature is set at 0 degrees, which is divided into 100 equal points, and 1 equal is divided into 1 degree. Famous among them naturalist Karl von Linnaeus Also used is this inverted scale thermometer In the letter, he declared: " I was the first to design a thermometer with a freezing point of zero and a boiling point of 100 degrees. " But that argument is not available Royal Swedish Academy of Sciences The recognition that this temperature scale used to be called Celsius scale (also called percentile temperature scale). Now for the sake of calculation, let's say 1K is equal to 1°C. In memory and recognition of Anders , Contribution of Perseus, 10th International, 1954 Weights and measures The General Assembly specifically named this temperature scale " Celsius scale " "Using the first letter of his last name " C".

temperature is a measure of how hot or cold an object is Physical quantity In microscopic terms, it is used to measure the molecules of objects Thermal motion The degree of intensity of a physical quantity. Temperature can only be determined by certain properties of objects that change with temperature Indirect measurement . Used to measure the temperature of an object staff call Temperature scale . It specifies the starting point (zero point) of the temperature reading and the temperature measurement Basic unit . Internationally used temperature scales are The Fahrenheit temperature scale (°F), Celsius scale (°C), Thermodynamic temperature scale (K), Liebermann temperature scale (° Re), Rankine temperature scale (R) and International practical temperature scale . from Kinetic theory of molecules From the point of view, temperature is the object molecule Mean motion The sign of kinetic energy. Temperature is the collective expression of the thermal motion of a large number of molecules and has statistical significance. But for individual molecules, temperature is meaningless.

Celsius, denoted by the symbol ° C, is Celsius scale (C) of the unit, Celsius scale (C) with The Fahrenheit temperature scale (F) Replacement equation Yes:

C=( F-32 )÷1.8, F=1.8×C+32

For example:

0 °C=(1.8 x 0+32)°F=32 °F

30 °C=(1.8×30+32)°F=86 °F

104 °F=[(104-32)÷1.8] °C =40 °C

320 °F=[(320-32)÷1.8] °C =160 °C

1°C=33.8°F ( Fahrenheit )

1°C=274.15K ( Degree Kelvin )

1°C=493.47°Ra ( Rankine degree )

1°C=0.8°Re ( Reichsen degree )

Celsius temperature has been incorporated International System of Units . In physics Celsius scale Expressed as t, Absolute temperature scale (Unit: Kelvin) is expressed as T, and the conversion relation is t=T-273.15. Celsius is used instead of Celsius when expressing Celsius temperature Kelvin A special name for the value 1K=1°C.

Fahrenheit Fahrenheit and Celsius are both units used to measure temperature. Most countries in the world, including our own, use degrees Celsius; Only five countries in the world still use it Fahrenheit , include Bahamas , Belize , British Cayman Islands , Palau , United States And other dependent territories ( Puerto Rico , Guam American Virgin Islands ). ^[1]

The Chinese way of writing Celsius is: Celsius, which is a whole symbol, character code: 2103.

The English degree Celsius is written as °C, which is a combination of two symbols.

C: Yes Capital letter Celsius is short for Celsius.