PRESENTATION OUTLINE
Fahrenheit (symbol °F) is a temperature scale based on one proposed in 1724 by the German physicist Daniel Gabriel Fahrenheit, after whom the scale is named. On Fahrenheit's original scale the lower defining point was the lowest temperature to which he could reproducibly cool brine (defining 0 degrees), while the highest was that of the average human core body temperature (defining 100 degrees). There exist several stories on the exact original definition of his scale; however, some of the specifics have been presumed lost or exaggerated with time. The scale is now usually defined by two fixed points: the temperature at which water freezes into ice is defined as 32 degrees, and the boiling point of water is defined to be 212 degrees, a 180-degree separation, as defined at sea level and standard atmospheric pressure
Farenheit to Celsius: F= (Cx2) + 30
Farenheit to kelvin: farenheit + 459.67 * 9/5
Celsius, is a scale and unit of measurement for temperature. It is named after the Swedish astronomer Anders Celsius ,who developed a similar temperature scale.
From 1744 until 1954, 0 °C was defined as the freezing point of water and 100 °C was defined as the boiling point of water, both at a pressure of one standard atmosphere with mercury being the working material. Although these defining correlations are commonly taught in schools today, by international agreement the unit "degree Celsius" and the Celsius scale are currently defined by two different temperatures: absolute zero, and the triple point of VSMOW . This definition also precisely relates the Celsius scale to the Kelvin scale, which defines the SI base unit of thermodynamic temperature with symbol K.
1 degree Celsius =
33.8 degrees Fahrenheit
1 degree Celsius =
27
The kelvin is a unit of measure for temperature. The Kelvin scale is an absolute, thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.
The Kelvin scale is named after the Belfast-born, Glasgow University engineer and physicist William Thomson, 1st Baron Kelvin, who wrote of the need for an "absolute thermometric scale". Unlike the degree Fahrenheit and degree Celsius, the kelvin is not referred to or typeset as a degree. The kelvin is the primary unit of measurement in the physical sciences, but is often used in conjunction with the degree Celsius, which has the same magnitude.
1 degree Fahrenheit =
255.927778 kelvin
1 degree Celsius =
274.15 kelvin
Rankineis a thermodynamic is a thermodynamic temperature scale named after the Glasgow University engineer and physicist William John Macquorn Rankine, who proposed it in 1859
The symbol for degrees Rankine is °R . By analogy with Kelvin, some authors call the unit rankine, omitting the degree symbol. Zero on both the Kelvin and Rankine scales is absolute zero, but the Rankine degree is defined as equal to one degree Fahrenheit, rather than the one degree Celsius used by the Kelvin scale. A temperature of −459.67 °F is exactly equal to 0 °R.
Celsius to rankine: [°R] = ([°C] + 273.15) × 9⁄5
Farehneit to rankine: [°R] = [°F] + 459.67
