Wikipedia:Reference desk/Archives/Miscellaneous/2019 August 15

= August 15 =

I need some help with something Filthy Frank related
I think when The Filthy Frank Show is typed in, it should redirect the Filthy Frank Show section of Joji (musician), but the article creation for it is protected and requires administrator access. Please help! Stinkyjaden (talk) 02:05, 15 August 2019 (UTC)Stinkyjaden
 * See HELP:REDIRECT. Simply create a new page (named  ) with the only thing on it being:
 * I might be wrong, but I believe you don't need to be an admin to create redirects. 107.15.157.44 (talk) 04:48, 15 August 2019 (UTC)
 * This item can only be created by an admin. The OP should pose this question to the admin who originally deleted it (the more recent involved admin hasn't edit since sometime in 2018). ←Baseball Bugs What's up, Doc? carrots→ 05:41, 15 August 2019 (UTC)
 * This item can only be created by an admin. The OP should pose this question to the admin who originally deleted it (the more recent involved admin hasn't edit since sometime in 2018). ←Baseball Bugs What's up, Doc? carrots→ 05:41, 15 August 2019 (UTC)

Category:Culture
Is it possible to determine when cultural generations was put on category:culture as a subcategory? https://en.wikipedia.org/wiki/Category:Culture -- 110.151.71.211
 * You can look at the history, as with any article. ←Baseball Bugs What's up, Doc? carrots→ 11:26, 15 August 2019 (UTC)
 * It's not as simple as that - the category has 47 sub-categories, and the same number is displayed throughout the revision history. 2A00:23C4:7997:6F00:544C:2FFA:B7B:4478 (talk) 11:42, 15 August 2019 (UTC)
 * It looks like it was created 11 years ago. ←Baseball Bugs What's up, Doc? carrots→ 13:42, 15 August 2019 (UTC)
 * He's asking when a particular page was added to Category:Culture and not when Category:Culture was added to a particular category. To determine the former, unless there's some tool for determining this (and there may be: category mavens tend to be very creative and have lots of neat tools), you need to check the edit history for each subcategory that you're interested in. —/M endaliv /2¢/Δ's/ 23:45, 15 August 2019 (UTC)
 * We're talking about Category:Cultural generations. You mentioned a "page", which normally refers to an article.  --   Jack of Oz   [pleasantries]  00:02, 16 August 2019 (UTC)


 * If the OP is interested in when a specific article was added to a specific category, shouldn't that be in the article's history? ←Baseball Bugs What's up, Doc? carrots→ 01:23, 16 August 2019 (UTC)
 * Yes. --   Jack of Oz   [pleasantries]  18:49, 16 August 2019 (UTC)


 * Category:Cultural generations was added to Category:Culture with this edit at 03:04 on the 18th August 2008. DuncanHill (talk) 20:23, 16 August 2019 (UTC)

Musical notes at Munich central railway station
About one month ago in the middle of July, I was at Munich central railway station. A long-distance train was departing and there was a sequence of musical notes playing for about five to ten seconds. I have also some times previously heard this at Munich central railway station. Why is this? J I P &#124; Talk 23:38, 15 August 2019 (UTC)


 * I don't know for sure, but a logical answer would be the "all aboard" signal that tells passengers the train is about to leave. It would also serve as a "get off the tracks" warning for maintenance workers, etc. Why make it musical ? Why not, it's cheap enough to do these days and the passengers might appreciate it. Having a different sound from other trains would also make it easier to identify at a distance. SinisterLefty (talk) 01:31, 16 August 2019 (UTC)


 * It's "noise" coming from the locomotive's electric motor. See/listen: .--TMCk (talk) 10:31, 16 August 2019 (UTC)
 * I have never heard of any motor making such a noise. Does the motor really make such a sound or is it an artificial add-on? If it's really coming from the motor, what part is causing it? J I P  &#124; Talk 20:04, 16 August 2019 (UTC)
 * It really is the locomotive's motor; "When a Siemens ES64U2 type locomotive enters or leaves that station, it makes music, it produces a melody. Some say it sounds like an Alt-Sax... The sounds are being produced by the traction convertors (German: “Stromrichter”) of the locomotives. The current from the overhead wiring enters the locomotive and needs to be ‘converted’ before it can be used for the 3-phase current motors of the machine". See That typical Taurus melody. Alansplodge (talk) 20:15, 16 August 2019 (UTC)
 * But here's a slightly different explanation: "From my attempts to understand, the notes are produced by a variable frequency drive which switches power on and off at variable frequencies (yes, hence the name...) and the magnetic fields caused by the electric current induce vibration in different parts of the loco’s structure. As I understand it Siemens deliberately designed it to produce these notes. Sadly newer models use different technology without the sound effects". A Taurus, musically. Maybe they are explaining the same thing differently, somebody who understands electric motors required!  Alansplodge (talk) 20:22, 16 August 2019 (UTC)
 * Yes, that's essentially the same explanation. The most relevant Wikipedia articles seem to be power electronics and variable frequency drive. --76.69.116.4 (talk) 07:13, 18 August 2019 (UTC)
 * Thanks. I have added a brief note to EuroSprinter. Alansplodge (talk) 10:51, 18 August 2019 (UTC)
 * Thanks, everyone.  When I saw the question I thought it related to sound coming over the station tannoy.   I didn't realise trains could sing. 92.31.141.118 (talk) 12:22, 18 August 2019 (UTC)