20200912 (Saturday)
3
Two "fabulous numeric coincidences", Celsius-Fahrenheit, Fahrenheit-Kelvin
Nine “transcendent” or “significant” points in four temperature scales: Celsius, Fahrenheit, Kelvin, and Rankine
Anders Celsius (1701-1744) was a Swedish physicist and astronomer who created a temperature scale: centesimal, or centigrade, or Celsius, whose unit is the degree Celsius. —Celsius temperature scale or Celsius scale.
Daniel Gabriel Fahrenheit (1686-1736) was a physicist who was born in a city of the Polish-Lithuanian Commonwealth then called Gdansk (German: Danzig), he was ethnically a German but lived most of his life in the Netherlands (Dutch: Nederland), so he was German-Polish-Dutch. He invented a temperature scale whose unit is the degree Fahrenheit. —Fahrenheit temperature scale or Fahrenheit scale.
William Thomson (1824-1907), first Baron of Kelvin, Lord Kelvin, was a British physicist, mathematician, and engineer. He determined the absolute zero of temperature, which is the lowest temperature theoretically possible. He invented a temperature scale whose unit is the degree Kelvin. —Kelvin temperature scale or Kelvin scale.
William Rankine (1820-1872) was a Scottish engineer and physicist who invented a temperature scale whose unit is the degree Rankine. —Rankine temperature scale, or Rankine scale.
The figures for each row are equivalent:
| °C | °F | °K | °R |
|---|---|---|---|
| –273.15 | –459.67 | 0 | 0 |
| –217.594444 | –359.67 | 55.555555 | 100 |
| –173.15 | –279.67 | 100 | 180 |
| –40 | –40 | 233.15 | 419.67 |
| –17.7777 | 0 | 255.372222 | 459.67 |
| 0 | 32 | 273.15 | 491.67 |
| 37.7777 | 100 | 310.927777 | 559.67 |
| 100 | 212 | 373.15 | 671.67 |
| 301.4375 | 574.5875 | 574.5875 | 1034.2575 |
20200912 (Saturday)