![]() | This ![]() It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||||||||||||||||||||||||||||
|
This page has archives. Sections older than 365 days may be automatically archived by Lowercase sigmabot III when more than 5 sections are present. |
The Peerage, Engineering.com and some other sources seem to think he died on 10 March 1810. (There’s even one site [1] that gives both dates, so that speaks volumes for their credibility.) Any ideas about this discrepancy? "The Peerage" is not known for getting such details wrong (not that it's impossible). -- JackofOz (talk) 06:20, 9 July 2008 (UTC)
"a volume of gas amounting to 1/120 of the original volume of common air.[6] By careful measurements he was led to conclude that, "common air consists of one part of dephlogisticated air [oxygen], mixed with four of phlogisticated [nitrogen]"." By my reading of his paper, he first concluded "one part...four" and then determined the 1/120th was not of common air but rather of the phlogisticated air, so that his estimate was that what we now know as argon was 1/150th of air. Please read p. 50 of the Alembic Club reprint and change the article if you agree.HowardJWilk (talk) 20:31, 21 February 2014 (UTC)
Bottom line is I'm not going to change it; this sort of thing is above my pay grade. But I searched for the word "whole" in the book, and this is what I found (some count might be off by 1, maybe, but that won't change my conclusion): The word is used 22 times. 1 is the one in question; 5 are N/A to gases (e.g., "during the whole experiment"); 1 refers to all air; and 15 refer to a single gas or a specific composition of gas not equivalent to all air. So I'm convinced the "whole" in question refers to phlogisticated air and not all air.
As far as references go, I think what's happened is that one or a few people wrote that Cavendish found that [argon] was or was about 1/120th of air, and then that got quoted and the quotes got quoted, etc. I think another factor leading to the more common interpretation is that it makes Cavendish look much better in that the 1/120 is closer, impressively close to the modern value of about 1/108.
So I'm not going to change it, but it sure would be swell if some noted historian of chemistry assumed the responsibility of changing 229 years of received wisdom.HowardJWilk (talk) 02:37, 24 February 2014 (UTC)
OK, :-) (The second time in my life I've used one of those things, and perhaps the last.) (Wasn't signed in the first time.) (And the : at the beginning threw off the intended formatting instead of being part of the intended emoticon.)HowardJWilk (talk) 01:59, 25 February 2014 (UTC)
Not clear, as written, what was published/communicated before HC death, and what published first only much later by JCM. To make clear what influence/impact his work had. - Rod57 (talk) 02:25, 30 November 2015 (UTC)
Hello fellow Wikipedians,
I have just modified one external link on Henry Cavendish. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template ((source check))
(last update: 5 June 2024).
Cheers.—InternetArchiveBot (Report bug) 06:47, 2 November 2017 (UTC)
"The first time that the constant got this name was in 1873, almost 100 years after the Cavendish experiment, but the constant was in use since the time of Newton.[27] Cavendish's results also give the Earth's mass."
This is not true. Newton worked only with proportions and did not use constants like G which arise only if you use equations. The reference to Cornu and Baille is not justified since it is dated to 147 years after Newton. And the contents of the link is not available. I leave the link but take out the phrase "but the constant was in use since the time of Newton." Zeyn1 (talk) 18:11, 27 May 2022 (UTC)