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He discovered 'fixed air'. We know he was not the first from Jan_Baptist_van_Helmont and from Carbon_dioxide. Did he 're-discover' or merely 'study' fixed air? Acuster 03:46, 4 May 2005 (UTC)
Biography page at University of Glascow says Dec 6, 1799
Britannica says Nov 10, 1799
Clemwang 17:40, 21 March 2007 (UTC)
The last update (by an IP with several warnings already) was apparently copied directly from this source, including typos. Therefore, while the text of the original encyclopedia appears to fall within fair use, redistribution of the published content is prohibited at the publishing site under section 5 and I felt that reversion was appropriate. NOTE that the date was changed from 1746 to 1744 by the same user, which I did NOT revert, as I am new to this process, was not able to verify it as accurate, and am yielding to editors with more experience. - Wickertu 18:43, 21 March 2007 (UTC)
Joseph Black awards - Preceding unsigned comment added by 151.196.32.51 (talk) 17:30, 19 October 2007 (UTC)
The article said"In 1761 Black deduced that the application of heat to ice does not cause its immediate liquefaction, rather the ice absorbed the heat without a rise in temperature.[3] Additionally, Black observed that the application of heat to boiling water does not result in immediate evaporation. "
Contrary to the article before my edit, adding heat to ice, at say, -10 C, increases its temperature; ice has a specific heat. It is only at the melting point that adding heat to an ice/water mixture that at first no temperature rise is detected, only once all the ice is melted. The error in the wording of the steam/water system is similar. DonSiano (talk) 15:10, 8 March 2010 (UTC)
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His nickname, which was Blackie is missing. Recently read a Scots Magazine article about him. Good for a reference. Scope creep (talk) 10:50, 8 October 2016 (UTC)
In the article is written:
"The latent heat of water is large compared with many other liquids, so giving impetus to James Watt's attempts to improve the efficiency of the steam engine invented by Thomas Newcomen."
It is true that water has a large latent heat compared to many other liquids, but how could that fact give "impetus" to Watt's attempts to improve the steam engine invented by Newcomen? The sentence is completely meaningless. I would usually try to make a constructive suggestion but I can't even guess at what was being attempted here. My suggestion is that the sentence simply be deleted.
David.Boettcher (talk) 18:53, 14 August 2019 (UTC)
The following was removed since Black had advanced well beyond notions of Principle (chemistry):
The assertion has been replaced by quotation and reference to Lectures given by Black. — Rgdboer (talk) 02:51, 31 January 2020 (UTC)
@GwydionM: From John Walker reference: (The Language of Minearology)
This excerpt does not support the text to which it is attached in the article. On the other hand, Elements of Chemistry (1806) volume 2 was linked via Internet Archive to show precisely what Black wrote. — Rgdboer (talk) 02:18, 4 February 2020 (UTC)
The wikipedia page for ammonia states that Joseph Black was the first to isolate gaseous ammonia. However, there is no mention of that on his own wikipedia page. Could someone include that in this article? There are functioning sources given in the ammonia article. 89.172.115.145 (talk) 00:26, 4 April 2021 (UTC)