Talk:Leiden scale

Rubbish - Hoax

This article is just a load of rubbish. It contains mere suppostions and suggestions. It must be a hoax. Anyone who knows enough about thermometrics to know of such an obscurity would surely possess the wit to write a better article.

Joke?

Is this article a joke? It almost contains more weasel words and disclaimers than words. – Minh Nguyễn (talk, contribs) 09:52, 11 January 2006 (UTC)

There is just one Internet source available (as quoted in the article). It does sound plausible, however, so it will stay until it can be proven one way or another.

Urhixidur 19:13, 12 January 2006 (UTC)

The source is now non-existantDannycas 21:33, 17 January 2006 (UTC)

Fixed it to what I think is the new URI. I should note that IT sounds highly suspiscious as well, it claims that Réaumur is still used in parts of Europe!

Proposed deletion

I've looked in a variety of physics texts, and none of them mention this scale. The linked article doesn't seem to be a very authoritative source. And with all the weasel words tha article isn't worth keeping at all. Kevin 13:27, 2 May 2006 (UTC)

After seeing the comments of User:BlueGoose I did my own Google search, which yields only 11 results. I don't think that this disproves a hoax, or provides reputable sources for verification. Kevin 07:46, 5 May 2006 (UTC)

Leiden not Leyden

It is the Leiden Scale not Leyden Scale. A quick search of Google, Google Books, and Google Scholar provides evidence that the Leiden scale is a temperature scale. Unfortunately, I am not familiar with the Leiden Scale, and there are insufficient resources online to immediately verify the content of this article, which is identical to a paragraph on the "Leyden scale" at Obsolete scales. As a newbie, I don't know the best way to correct this misspelled article title especially as numerous pages link to it. I would appreciate it if someone would step in and fix it. Instance 04:35, 12 June 2006 (UTC)

Would you care to give a list of refs without the Wikipedia mirrors?

Here's one:

Berman, A.; Zemansky, M. W.; and Boorse, H. A.; Normal and Superconducting Heat Capacities of Lanthanum, Physical Review, Vol. 109, No. 1 (january 1958), pp. 70-76 mentions it:

« The 1955 Leiden scale¹³ was used to convert helium vapor pressures into temperatures [...]

(13) H. van Dijk and M. Durieux, in Progress in Low Temperature Physics II, edited by C. J. Gorter (North-Holland Publishing Company, Amsterdam, 1957), p. 461. In the region of calibration the 1955 Leiden scale, T_L55, differs from the Clement scale, T_55E, by less than 0.004 deg. »

This sounds more like a calibration scale, so there wouldn't be "Leiden degrees".

Another is Grebenkemper, C. J.; and Hagen, John P.; The Dielectric Constant of Liquid Helium, Physical Review, Vol. 80, No. 1 (October 1950), pp. 89-89 :

« The temperature scale used was the 1937 Leiden scale. »

The accompanying diagram is labeled in "°K" (i.e., kelvins, then "degrees Kelvin").

Urhixidur 19:49, 10 May 2007 (UTC)

Not a scale with degrees as such, but diverging from the International Standard of 1927

Dear all,

The Leiden scale a purely calibrational scale, used in experimental research, to be converted to regular units (Kelvin) in publications. One cannot name it a 'temperature scale' such as the Kelvin, but it was solely an experimental measuring device. According to the Leiden researchers their thermometers told temperature better (they were better calibrated) than the thermometer definitions in the International Standard of temperatures of 1927; therefore it led to a diverging temperature scale (in Kelvins!). For instance, they had a more precise (±0.01 °K) thermometer to measure the boiling point of oxygen (in Kelvin) than was written in the International Standard (±0.05 °K).

Nobody disputed the fact that the only correct scale was Kelvin’s absolute temperature scale. However, the question was how that thermodynamic scale, in which the melting point of water was set at 0 °C and the boiling point of water at 100 °C, could best be approached in practice: by means of the gas thermometer or the platinum thermometer?

Thus, temperature scale in this sense meant which calibrated thermometer to be used as a scale.

Source: Much ado about cold: Leiden’s resistance to the International Temperature Scale of 1927, Dirk van Delft 2013, in Physics as a Calling, Science for Society, Studies in honour of A.J. Kox

PS: The expert on this subject is Dirk van Delft, prof. at Leiden University. Furthermore, I am quite sure that van Delft would not have missed something this in his dissertation (2005) - a scientific biography of Heike Kamerlingh Onnes. — Preceding unsigned comment added by Thagusta (talk • contribs) 21:22, 21 June 2017 (UTC)

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