›› Convert degree newton to degree Rømer


degree newton
Romer

›› More information from the unit converter

How many degree newton in 1 Romer? The answer is 0.62857142857143.
We assume you are converting between degree newton and degree Rømer.
You can view more details on each measurement unit:
degree newton or Romer
The SI base unit for temperature is the kelvin.
1 kelvin is equal to 0.33 degree newton, or 0.525 Romer.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between degrees newton and degrees Rømer.
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›› Common temperature conversions

degree newton to Celsius
degree newton to Fahrenheit
degree newton to kelvin
degree newton to Rankine
degree newton to Delisle
degree newton to Reaumur


›› Definition: Newton

The newton scale is a temperature scale devised by Isaac Newton around 1700. Applying his mind to the problem of heat, he elaborated a first qualitative temperature scale, comprising about twenty reference points ranging from "cold air in winter" to "glowing coals in the kitchen fire". This approach was rather crude and problematical, so Newton quickly became dissatisfied with it. He knew that most substances expand when heated, so he took a container of linseed oil and measured its change of volume against his reference points. He found that the volume of linseed oil grew by 7.25% when heated from the temperature of melting snow to that of boiling water.

After a while, he defined the "zeroth degree of heat" as melting snow and "33 degrees of heat" as boiling water. He called his instrument a "thermometer".


›› Definition: Romer

Rømer is a disused temperature scale named after the Danish astronomer Ole Christensen Rømer, who proposed it in 1701.

In this scale, the zero was initially set using freezing brine. The boiling point of water was defined as 60 degrees. Rømer then saw that the freezing point of water fell at roughly one eighth of that value (7.5 degrees), so he used that value as the other fixed point. Thus the unit of this scale, a Rømer degree, is 40/21sts of a kelvin (or of a Celsius degree). The symbol is sometimes given as °R, but since that is also sometimes used for the Rankine scale, the other symbol °Rø is to be preferred. The name should not be confused with Réaumur.

Daniel Gabriel Fahrenheit learned of Rømer's work and visited him in 1708; he improved on the scale, increasing the number of divisions by a factor of four and eventually establishing what is now known as the Fahrenheit scale, in 1724.


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