What is Fahrenheit and Celsius based upon?

Answer 1

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)

Answer 2

Celsius is a scale for measuring temperature. The scientific (SI) unit for temperature is Kelvin, but the popular scale is the Celcius. (A minority of countries use the Fahrenheit scale instead.)

Celsius is a scale for measuring temperature. The scientific (SI) unit for temperature is Kelvin, but the popular scale is the Celcius. (A minority of countries use the Fahrenheit scale instead.)

Celsius is a scale for measuring temperature. The scientific (SI) unit for temperature is Kelvin, but the popular scale is the Celcius. (A minority of countries use the Fahrenheit scale instead.)

Celsius is a scale for measuring temperature. The scientific (SI) unit for temperature is Kelvin, but the popular scale is the Celcius. (A minority of countries use the Fahrenheit scale instead.)

Answer 3

Celsius is a scale for measuring temperature. The scientific (SI) unit for temperature is Kelvin, but the popular scale is the Celcius. (A minority of countries use the Fahrenheit scale instead.)

Answer 4

Both scales are based on fixed temperatures. Celsius is based on the freezing point of pure water (which is zero degrees) and the boiling point of the same (which is a hundred degrees).

The Fahrenheit scale is based on the freezing point of water mixed with ammonium chloride, the freezing point of pure water, normal human body temperature and the boiling point of water. All variations of his scale had the freezing point of the ammonium chloride brine at zero. The first scale had the freezing point of water at 30 degrees and body temperature at 90; the second had the freezing point of water at 32 and body temperature at 96 (Fahrenheit, like computer designers, preferred the binary system to the decimal and wanted 64 degrees between the two); the third and final adjusted the size of the degrees slightly so that there were exactly 180 degrees between the freezing and boiling points of pure water.

Answer 5

Dividing the difference between the freezing and boiling points of water into 100 equal parts.

Answer 6

a temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees.

Answer 7

No Kelvin is