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The celsius scale is a metric scale of temperature measurement. Unlike the Fahrenheit scale 0 degrees is freezing point and 100 degrees is the boiling point of water. The celsius scale is used anywhere the metric system is used. In addition to the Fahrenheit and celsius scale there is also the kelvin scale, used mainly only by scientists. Unlike other scales, on the kelvin scale 0 degrees is the lowest temperature possible (known as absolute zero and equivalent to -273 degrees in celsius) and there are therefore no negative readings.

Early thermometers (like the one Galileo invented) did not have any scale (markings with numbers) to determine precise temperature.

The 1st precise scale was developed by Anders Celsius in 1742. He used 'degree' as the unit of temperature. All of his standards for comparison to make his markings (on his scale) were based on the properties of water.

Ø 100o was assigned the temperature at which ice melts at sea level

Ø 0o was assigned the temperature at which liquid water boils at sea level

Ø The region between (above and below, as well) these two extremes was separated into 100 equal units (degrees)

In 1744, this was reversed to put the freezing point at 0C, and the boiling point at 100C. This is the scale in use today.

Ø The two fixed temperatures that Celsius chose can be used to calibrate a thermometer (p. 195)

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Related Questions

If Celsius is based upon water's melting point 0 degrees Celsius and water's boiling point 100 degrees Celsius what is Fahrenheit based upon?

In Fahrenheit, 32°F is the freezing point of the water and the boiling point is 212°F. Fahrenheit for unknown reasons calibrated his scale so that 0 was the freezing point of salt water and 100 was the internal temperature in his mouth.


How do make Celsius to Fahrenheit?

The formula to convert Celsius to Fahrenheit is:(Celsius x 1.8) + 32 = Fahrenheit


Which temperature units are based on the properties of water?

All of them.


Is 60 degrees Celsius higher than 60 degrees Fahrenheit?

Yes, 60 degrees Celsius is higher than 60 degrees Fahrenheit. This is because the Celsius scale is based on the freezing and boiling points of water at sea level, while the Fahrenheit scale is based on a slightly different reference point.


What is 185 degrees Fahrenheit in Celsius?

185 degrees Celsius = 365 degrees Fahrenheit.


What is 170 Celsius in Fahrenheit?

338°F170 Celsius = 338 Fahrenheit


What is 400degrees Fahrenheit in Celsius?

400 Fahrenheit = 204.4 Celsius 400 Celsius = 752 Fahrenheit


How do the two formulas Fahrenheit and Celsius derive?

Fahrenheit = (Celsius * 1.8) + 32 Celsius = (Fahrenheit - 32) / 1.8


What are the steps to converting Celsius to Fahrenheit?

(Celsius x 1.8)+32= Fahrenheit (Fahrenheit-32)/1.8= Celsius


What is -40 Fahrenheit in Celsius?

It happens to be -40 Celsius too.


When did Celsius and Fahrenheit originate?

Anders Celsius created the Celsius scale in 1742, and Daniel Gabriel Fahrenheit developed the Fahrenheit scale in 1724.


What is 20 30 degrees celsius in Fahrenheit?

20 degrees Celsius = 68 degrees Fahrenheit 30 degrees Celsius = 86 degrees Fahrenheit.