Talk:Tyndall's bar breaker

Did you know nomination

The following is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page. No further edits should be made to this page.

The result was: withdrawn by nominator, closed by Narutolovehinata5 (talk) 06:51, 28 August 2020 (UTC)[reply]

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Setup and procedure of Tyndall's bar breaker experiment

... that Tyndall's bar breaker (illustrated) causes a loud but illustrative bang in the class room? Source: "Typically the bar (c) breaks within a few minutes with a loud bang or it is at least deformed significantly."
- ALT1:... that thermal shrinkage can easily break a massive cast iron bar? Source: "Tyndall's bar breaker is a physical demonstration experiment to demonstrate the forces created by thermal expansion and shrinkage."

Comment: The picture could be used for both hooks.

Created by Xorx (talk). Self-nominated at 07:09, 13 August 2020 (UTC).[reply]

Xorx According to WP:DYKRULES, Articles must have a minimum of 1,500 characters. This article is currently 771 characters, so will need to be expanded to 1500 characters to be eligible for DYK. Joseph2302 (talk) 11:23, 18 August 2020 (UTC)[reply]
I have also contacted the user on German language Wikipedia, where they are most active, in relation to this DYK nomination. Joseph2302 (talk) 11:29, 18 August 2020 (UTC)[reply]

Thank you Joseph for your message, your German is perfect! If I look in the version history I see 1837 Bytes. I may not know the rules for counting characters. How are 771 characters counted? Anyway I will try to expand it. -- Dr. George (T) 11:39, 18 August 2020 (UTC)[reply]
The character count (which is now 868 characters) is done by counting the number of characters on the article page as displayed to users, and doesn't count all the Wikitext characters (so for example where you have Tyndall's bar breaker it doesn't count the 6 's). Joseph2302 (talk) 09:42, 19 August 2020 (UTC)[reply]

Dr. George, the usual way to determine the number of prose characters for DYK is to use WP:DYKcheck. It's easy to install and use. MANdARAX • XAЯAbИAM 21:22, 25 August 2020 (UTC)[reply]

Thank you for your support. I found the tool and installed it. I was a bit disappointed that it does not count image captions. But anyway I currently see no way for me to extend this article beyond the current prose size of 868 characters to the requested length. It is an interesting experiment but you do not need many words to fully describe it. -- Dr. George (T) 09:00, 26 August 2020 (UTC)[reply]

@Xorx: Do you still wish to pursue this nomination or are you planning to withdraw it? Narutolovehinata5 ^tccsdnew 16:20, 27 August 2020 (UTC)[reply]

@Narutolovehinata5: I am withdrawing my nomination. -- Dr. George (T) 06:47, 28 August 2020 (UTC)[reply]

Sources wanted

I was looking for sources about invention and history of this experiment but there seems to be little available. The only thing I found yet is that the experiment is existing and the setup is available as a commercial product for beeing used in physics lesson and that that the experiment was demonstrated to me by our physics teacher when I was 14 years old. In Tyndall's famous lecture "Heat considered as a mode of motion" I could not find a hint on this experiment. It is even unclear to me if Tyndall is really the inventor of this experiment (he certainly could have been!). Any hints are welcome! -- Dr. George (T) 14:25, 6 September 2020 (UTC)[reply]