Rømer to Delisle (°Rø to °De) formula
Delisle = ((Rømer - 7.5) * 2.85714286) + -100
Rømer is an historical figures who made significant contributions to the field of temperature measurement.
Ole Rømer, a Danish astronomer, is known for his work in the late 17th century, where he made important observations and calculations related to the speed of light. However, Rømer also made contributions to temperature measurement by developing the Rømer scale. The Rømer scale, also known as the Danish scale, was based on the freezing and boiling points of water, similar to the Celsius scale. However, Rømer's scale used different reference points, with 0 degrees representing the freezing point of brine (a mixture of water and salt) and 60 degrees representing the boiling point of water. While the Rømer scale is no longer widely used, it played a role in the development of temperature measurement and served as an early precursor to the Celsius scale.
The Delisle scale is a temperature scale that was developed by French astronomer Joseph-Nicolas Delisle in the early 18th century. It is named after him and is based on the Celsius scale, which is widely used today. The Delisle scale is a reverse scale, meaning that as the temperature increases, the Delisle value decreases.
On the Delisle scale, the boiling point of water is set at 0 degrees, while the freezing point is set at 150 degrees. This means that the Delisle scale has a larger range than the Celsius scale, with 180 degrees between the boiling and freezing points. To convert a temperature from Delisle to Celsius, you can use the formula: Celsius = (150 - Delisle) * 2/3.
While the Delisle scale was widely used in the 18th century, it has since fallen out of favor and is not commonly used today. The Celsius scale, on the other hand, is the most widely used temperature scale in the world, particularly in scientific and everyday applications. It is based on the freezing and boiling points of water, making it a practical and easily understandable scale for measuring temperature.