Newton scale

Newton scale
Newton temperature conversion formulae
from Newton to Newton
Celsius [°C] = [°N] × 10033 [°N] = [°C] × 33100
Fahrenheit [°F] = [°N] × 6011 + 32 [°N] = ([°F] − 32) × 1160
Kelvin [K] = [°N] × 10033 + 273.15 [°N] = ([K] − 273.15) × 33100
Rankine [°R] = [°N] × 6011 + 491.67 [°N] = ([°R] − 491.67) × 1160
For temperature intervals rather than specific temperatures,
1 °N = 10033 °C = 6011 °F
Comparisons among various temperature scales

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 problematic, 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. His scale is thus a precursor of the Celsius scale, being defined by the same temperature references. Indeed it is likely that Celsius knew about the Newton scale when he invented his. Newton called his instrument a "thermometer".

Thus the unit of this scale, the Newton degree, equals \tfrac{100}{33} (approximately 3.03) kelvins or degrees Celsius and has the same zero as the Celsius scale.

Contents

Conversion table between the different temperature units

See also

  • Comparison of temperature scales

References

  • Grigull, U. (1984), "Newton's temperature scale and the law of cooling", Heat and Mass Transfer 18 (4): 195–199, doi:10.1007/BF01007129 .

External links



Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Newton — is a contraction of New Town , the name of many places in English speaking countries. It may refer to: Contents 1 People 2 Science and technology 3 Places …   Wikipedia

  • Newton (disambiguation) — Newton may refer to: Physics * Newton, SI unit of force named after Sir Isaac Newton * Newton scale, temperature scale devised by Isaac Newton * Classical mechanics, sometimes referred to as Newtonian mechanics People * Sir Isaac Newton * Newton… …   Wikipedia

  • Newton (unit) — Not to be confused with Newton scale, a rarely used non SI temperature scale. Newton Unit system: SI derived unit Unit of... Force Symbol: N Named after: Isaac Newton …   Wikipedia

  • Newton Abbot railway station — Newton Abbot Location Place …   Wikipedia

  • Newton Abbot College — Motto Leading In Learning Established 2008 Religion Secular Principal Gareth Davies Specialism Technology College Location …   Wikipedia

  • Newton, Iowa —   City   Location of Newton, Iowa …   Wikipedia

  • Newton-Upon-Ayr —    NEWTON UPON AYR, a burgh, market town, and parish, in the district of Kyle, county of Ayr; containing 4482 inhabitants. This place derives its name from its being of more recent foundation than the county town, and from its position on the… …   A Topographical dictionary of Scotland

  • Newton, New Zealand — Newton The former Orange Hall, a well known Newton landmark. Basic information Local authority Auckland City Population …   Wikipedia

  • Newton Vineyard — Location Napa, California, USA Appellation Spring Mountain District AVA Founded 1977 …   Wikipedia

  • Newton's rings — observed through a microscope. The smallest increments on the superimposed scale are 100μm …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”