Celsius

Cold winter and cold winter come to the northern hemisphere, followed by discussions about central heating, gloves and scarves, snowfall and record low temperature. Monitoring the temperature is part of everyday life such as weather, condition of the body, central heating, cooking and so on. In the United States, temperature is usually measured at Fahrenheit temperature. However, in other countries such as the UK, the weather forecast for Celsius is displayed. Recipes will suggest that you bake pie at 205oC instead of 400oF.

Celsius (Celsius) was a temperature scale named after the astronomer Anders Celsius (1701-1744), he formed a similar temperature scale two years before his death. It is also called Celsius. Celsius can be referred to as a specific temperature in degrees centigrade, or as a unit increment indicating the temperature interval (difference in temperature or uncertainty between the two temperatures). Rankine (R or Ra distinguishes from Rømer and Réaumur scale) is the temperature scale proposed in 1859, named after the physicist William John Macquorn Rankine (1820-1872). Rankine scale is similar to Kelvin scale. 0 degree is absolute zero but Rankin degree is defined as equal to 1 degree Fahrenheit (not as 1 degree Celsius as used in Kelvin scale). -459.67 ° F The temperature is equal to 0R

Kelvin (K) is a unit of thermodynamic temperature scale. The scale starts with 0 K. The incremental dimension of Kelvin is the same as the incremental dimension of the Celsius (aka Celsius) scale. Kelvin is 1 / 273.16 (just 0.01 ° C, or 32.018 ° F) of the thermodynamic temperature of the triple point of water. By the time the candle was the most common illumination source, the name of Candela (cd) was called "candlelight" (since many people use candles, their characteristics are standardized) . Today, with the spread of incandescent lamps and fluorescent lights, Candela is defined as illuminance in a certain direction, emits monochromatic radiation at a frequency of 540 \ cdot 10 ^ {12} Hz, and has radiant intensity. 1/683 watts per spheroid

In the temperature range of the 18th century, the temperature is expressed in degrees Celsius and is defined as the melting of ice at 0 ° C and standard pressure and the boiling of water at 100 ° C. A series of lookup tables defines the temperature based on correlated empirical measurements made using various devices. In 1948, the definitions of temperature must be clarified. Since Celsius temperature was used as an angle measurement method in many countries, Measurement and Measurement Conference (CGPM) recommended to change the Celsius temperature used for temperature measurement to Celsius temperature in 1948 . The SI Manual (2006) states that gon is now a rare alternative.