Réaumur, René Antoine Ferchault de
1683�1757, French physicist and naturalist. He invented an alcohol
thermometer (1731) and the Réaumur temperature scale, in which the freezing
point of water is 0° and the boiling point 80°. In 1710 he directed the
official description of arts and trades in France. He investigated
gold-bearing rivers, turquoise mines, and forests. He did research on the
composition of Chinese porcelain, which led him to develop an opaque glass,
and on the composition and manufacture of iron and steel, including a means
of tinning iron. As a naturalist he is best known for his exhaustive study
of insects (6 vol., 1734�42; a 7th vol., part of the original manuscript,
appeared in 1928); he also studied regeneration in crayfish and showed
corals to be animals, not plants.
Bill Potts, CMS
Roseville, CA
http://metric1.org [SI Navigator]
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
> Behalf Of James R. Frysinger
> Sent: April 18, 2001 07:38
> To: U.S. Metric Association
> Cc: U.S. Metric Association
> Subject: [USMA:12293] Re: Kelvin, Rankine & Reaumur
>
>
> Madan,
>
> The Celsius temperature scale is defined such that a temperature in
> degrees Celsius is equivalent to that numerical quantity plus 273.15 K.
> For example, 1 °C = 274.15 K or 274.15 kelvins. Note that the spelled
> out unit name is not capitalized (unless it is the first word in a
> sentence) and that there is no raised circle (or word "degrees") used
> with kelvins. Kelvins are used to express "absolute" (colloquial name)
> or thermodynamic temperatures. You can convert a temperature in kelvins
> to a temperature in degrees Rankine (but why?) by multiplying with 9/5.
> So multiply 273.15 by 9/5 to find out how many degrees Rankine (°R) to
> add to degrees Fahrenheit (°F) to express the thermodynamic temperature
> in degrees Rankine. The classical steam tables and charts used by
> engineers were expressed in these units. Hopefully, they are now
> available in SI.
>
> I have never used the Reaumur scale and know nothing about it.
>
> Jim
>
> M R wrote:
> >
> > This website
> >
> > http://students.washington.edu/kyle/temp.html
> >
> > helps us to convert celsius to
> > Fahrenheit
> > Kelvin
> > Rankine &
> > Reaumur
> >
> > 1 Celsius =
> > 33.8 Fahrenheit
> > 274 Kelvin
> > 493 Rankine
> > .8 Reaumur.
> >
> > It seems that Kelvin is used in scientific areas.
> > Is it still used and what about Rankine and Reaumur.
> >
> > Madan
> >
> > __________________________________________________
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>
> --
> James R. Frysinger University/College of Charleston
> 10 Captiva Row Dept. of Physics and Astronomy
> Charleston, SC 29407 66 George Street
> 843.225.0805 Charleston, SC 29424
> http://www.cofc.edu/~frysingj [EMAIL PROTECTED]
> Cert. Adv. Metrication Specialist 843.953.7644
>
>
