What is a degree

                                                                    What is a degree?

A degree is a unit used to measure temperatures. You can express it in °C,K or °F

The fahrenheit scale was created by Daniel Gabriel Fahrenheit in the 18th century. During his studies in Poland, he decided to create a temperature scale based on the blood temperature in the human body: he chose 98.6°F he then added more temperatures such as; the melting point of ice(32°F)and the boiling point of the water(212°F)

After The French Revolution at the end of the 18th century,a lot of countries changed their temperature scale from Fahrenheit to Celsius since it was a lot more easier. Indeed, in celsius the freezing point of water is 0°C and the boiling point of water is 100°C

Finally, Lord Kelvin invented the Kelvin scale which is now the most used temperature scale in the world

Those scales give us formules:

                C=(F-32)*5/9                        ;                F=(C*5/9)+32

0°C=32°F                                        0°F=-18°C                                0 K=-273°C

100°C=212°F                                    98.6°F=37°C

-40°C=40°F 

Manon and Diego