Other Réaumur Conversions
Réaumur To Celsius
Réaumur To Fahrenheit
Réaumur To Kelvin
Réaumur To Newton
Réaumur To Rankine
The Réaumur and Delisle scales are both historical temperature scales. While less common in modern science, understanding their conversions can be valuable for historical research or when working with older scientific data. This guide will delve into the intricacies of converting temperatures from the Réaumur scale to the Delisle scale, providing a clear understanding of the process.
The Réaumur scale, developed by René Antoine Ferchault de Réaumur in 1730, is a temperature scale where the freezing point of water is 0°R, and the boiling point of water is 80°R.
The Delisle scale, invented by Joseph-Nicolas Delisle in 1732, is a descending scale. This means the boiling point of water is 0°D, and the freezing point of water is 150°D.
The formula to convert Réaumur to Delisle is:
**Delisle (D) = 150 - (Réaumur (°R) * (15/4))**
Let's convert 40°R to Delisle degrees:
| Réaumur | Delisle | Réaumur | Delisle | Réaumur | Delisle | Réaumur | Delisle |
|---|---|---|---|---|---|---|---|
| 1ºRé | 76.25°De | 21ºRé | 1.25°De | 41ºRé | -73.75°De | 61ºRé | -148.75°De |
| 2ºRé | 72.50De | 22ºRé | -2.50°De | 42ºRé | -77.50°De | 62ºRé | -152.50°De |
| 3ºRé | 68.75°De | 23ºRé | -6.25°De | 43ºRé | -81.25De | 63ºRé | -156.25°De |
| 4ºRé | 65.00°De | 24ºRé | -10.00°De | 44ºRé | -85.00°De | 64ºRé | -160.00°De |
| 5ºRé | 61.25°De | 25ºRé | -13.75°De | 45ºRé | -88.75°De | 65ºRé | -163.75°De |
| 6ºRé | 57.50°De | 26ºRé | -17.50°De | 46ºRé | -92.50°De | 66ºRé | -167.50°De |
| 7ºRé | 53.75°De | 27ºRé | -21.25°De | 47ºRé | -96.25°De | 67ºRé | -171.25De |
| 8ºRé | 50.00°De | 28ºRé | -25.00°De | 48Ré | -100.00°De | 68ºRé | -175.00°De |
| 9ºRé | 46.25°De | 29ºRé | -28.75°De | 49ºRé | -103.75°De | 69ºRé | -178.75°De |
| 10ºRé | 42.50°De | 30ºRé | -32.50°De | 50ºRé | -107.50De | 70ºRé | -182.50°De |
| 11ºRé | 38.75°De | 31ºRé | -36.25°De | 51ºRé | -111.25°De | 71ºRé | -186.25°De |
| 12ºRé | 35.00°De | 32ºRé | -40.00°De | 52ºRé | -115.00°De | 72ºRé | -190.00°De |
| 13Ré | 31.25°De | 33ºRé | -43.75°De | 53ºR | -118.75°De | 73ºRé | -193.75°De |
| 14ºRé | 27.50°De | 34ºRé | -47.50°De | 54ºRé | -122.50°De | 74ºRé | -197.50°De |
| 15ºRé | 23.75°De | 35ºRé | -51.25°De | 55ºRé | -126.25°De | 75ºRé | -201.25°De |
| 16ºRé | 20.00°De | 36Ré | -55.00°De | 56ºRé | -130.00°De | 76ºRé | -205.00°De |
| 17ºRé | 16.25°De | 37ºRé | -58.75°De | 57ºRé | -133.75°De | 77ºRé | -208.75°De |
| 18ºRé | 12.50°De | 38ºRé | -62.50De | 58ºRé | -137.50°De | 78ºRé | -212.50De |
| 19ºRé | 8.75°De | 39ºRé | -66.25°De | 59Ré | -141.25°De | 79ºRé | -216.25°De |
| 20ºRé | 5.00°De | 40ºRé | -70.00°De | 60ºRé | -145.00°De | 80ºRé | -220.00°De |
