Konversi Suhu Reaumur ke Delisle (SI)

Temperature is a fundamental physical quantity that is measured in various units depending on the region, tradition, or specific scientific field. Among the lesser-known temperature scales are the Reaumur and Delisle scales. While not as commonly used today as Celsius or Fahrenheit, understanding how to convert between these units is essential for historical scientific studies or specific regional applications. In this article, we will explore how to convert from Reaumur to Delisle, providing you with a clear and comprehensive guide.

Apa Itu Skala Suhu Reaumur?

The Reaumur scale, also known as the “octogesimal division,” was proposed by René Antoine Ferchault de Réaumur in 1730. On this scale, the freezing point of water is set at 0 degrees Reaumur (°Ré), and the boiling point is set at 80 degrees Reaumur. This scale was widely used in Europe, particularly in France and Germany, until it was largely replaced by the Celsius scale.

The Reaumur scale is linear and is particularly simple to use, especially in regions where it was adopted. However, it is now mostly of historical interest, though it is still sometimes used in certain industries, such as cheesemaking.

Apa Itu Skala Suhu Delisle?

The Delisle scale, named after the French astronomer Joseph-Nicolas Delisle, is a temperature scale where the boiling point of water is 0 degrees Delisle (°D), and the freezing point of water is set at 150 degrees Delisle. Unlike most other temperature scales, the Delisle scale is an inverted scale; temperatures increase as you move down the scale. This means that higher Delisle values correspond to colder temperatures.

The Delisle scale is even less commonly used today than the Reaumur scale, making it another example of a temperature unit that is of more historical significance than practical use.

Bagaimana Mengonversi Suhu dari Reaumur ke Delisle?

Converting temperature from Reaumur to Delisle involves understanding the relationship between these two scales. The conversion formula is derived from the principles of linear conversion between temperature scales.

Rumus Konversi

To convert Reaumur to Delisle, the formula is:

Delisle

150
−
Reaumur
×
150
80
1
Delisle=
1
150−Reaumur×
80
150
​

​

Here’s how the conversion works:

Multiply the Reaumur temperature by
150
80
80
150
​
. This step adjusts the Reaumur value to a scale that aligns with the Delisle measurement range.
Subtract the result from 150. Since the Delisle scale decreases as temperature increases, this step inverts the scale, making it possible to obtain the correct Delisle value.
Contoh Konversi
Let’s say you want to convert 20°Ré to Delisle.

Multiply 20 by
150
80
80
150
​
, which equals 37.5.
Subtract 37.5 from 150 to get 112.5°D.
Therefore, 20°Ré is equivalent to 112.5°D.

Mengapa Memahami Konversi Ini Penting?

Understanding the conversion between Reaumur and Delisle scales can be important for several reasons, especially if you’re dealing with historical data, or you need to interpret scientific literature from the period when these scales were more commonly used. Additionally, in specific industrial applications like cheesemaking, where traditional methods are still followed, knowing how to convert temperatures can be crucial.

Memahami Signifikansi Historis

In the 18th and 19th centuries, different regions of Europe used different temperature scales. Scientists and researchers often had to convert between these scales to ensure their findings were comparable. Understanding how to convert between Reaumur and Delisle, therefore, is also about understanding the history of science and technology.

Aplikasi di Industri

Though rare, some traditional industries might still use the Reaumur scale. In such cases, knowing how to convert to a more familiar or necessary scale, such as Delisle, can be critical for maintaining consistency in processes and ensuring that temperatures are accurately controlled.

Pertanyaan yang Sering Diajukan (FAQs)

1. Apa Perbedaan Utama antara Skala Reaumur dan Delisle?

Jawaban: The main difference between the Reaumur and Delisle scales is how they are structured. Reaumur uses 0 as the freezing point and 80 as the boiling point of water, while Delisle inverts this by setting the boiling point at 0 and freezing point at 150. Additionally, Reaumur is more linear and straightforward, whereas Delisle’s inverted scale can be counterintuitive.

2. Mengapa Skala Reaumur dan Delisle Jarang Digunakan Saat Ini?

Jawaban: Both Reaumur and Delisle scales have largely fallen out of use due to the widespread adoption of the Celsius and Fahrenheit scales, which are more standardized globally. The scientific community and most industries prefer Celsius (or Kelvin) due to its direct relationship with the metric system.

3. Bagaimana Cara Mengonversi Suhu Delisle ke Reaumur?

Jawaban: To convert from Delisle to Reaumur, you can use the formula:

Reaumur

150
−
Delisle
×
80
150
1
Reaumur=
1
150−Delisle×
150
80
​

​

For example, to convert 100°D to Reaumur:

Multiply 100 by
80
150
150
80
​
, which equals 53.33.
Subtract 53.33 from 150 to get 96.67°Ré.

4. Di Mana Skala Reaumur Masih Digunakan?

Jawaban: While the Reaumur scale is largely obsolete, it is still used in some traditional cheesemaking processes, particularly in certain European regions. It is also occasionally encountered in historical scientific literature.

5. Apakah Skala Delisle Masih Relevan di Dunia Modern?

Jawaban: The Delisle scale is not widely used in modern times and is mostly of historical interest. However, it remains relevant for studying historical scientific documents and understanding the development of thermometry.

Kesimpulan

Understanding the conversion between Reaumur and Delisle scales can be useful, especially for those involved in historical scientific research or specific traditional industries. While these scales are not as widely used today as Celsius or Fahrenheit, knowing how to convert between them can provide valuable insights into the history of science and technology.