Commons:Categories for discussion/2012/01/Category:Signal towers

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This discussion of one or several categories is now closed. Please do not make any edits to this archive.

Category:Signal_towers[edit]

Should be moved to Category:Optical telegraph, because it is the same. Cqdx (talk) 14:27, 27 January 2012 (UTC)[reply]

Hmmm, tricky. Not all optical telegraphs are on towers and not all signal towers were constructed for optical telegraphs. The contents of the categories certainly need looking at, though. But might Optical telegraph make sense as as subcat: of Signal towers? Man vyi (talk) 16:19, 27 January 2012 (UTC)[reply]
I assume "Optical telegraph" means "Optical telegraph towers", since it is a subcategory of "Communications towers". For the non-optical (i.e. radio signals) towers, there are other categories. And yes, "Opticial telegraph (towers)" being a subcategory of "Communications towers" makes sense, since optical telegraphs are always on towers, for obvious reasons. --Cqdx (talk) 16:45, 27 January 2012 (UTC)[reply]
Depends on the definition of "tower", I suppose. File:Optische telegraaf chappe.jpg looks more like a mast than a tower. What do you think about beacon towers? Man vyi (talk) 19:04, 27 January 2012 (UTC)[reply]
What beacons? Do you mean Category:Lighthouses? Or air navigation Category:Non-directional beacons? --Cqdx (talk) 21:52, 27 January 2012 (UTC)[reply]
Towers that are Category:Beacons and especially the ones built for signal fires e.g. File:Halifax Beacon, Southowram - geograph.org.uk - 161417.jpg. Man vyi (talk) 09:39, 28 January 2012 (UTC)[reply]
To answer your question, I believe that the beacons category is correctly not under "Communications towers". --Cqdx (talk) 10:44, 28 January 2012 (UTC)[reply]
Quite, not all beacons are towers, but presumably individual beacon towers should also be categorised as signal towers since they're towers used for signalling? Man vyi (talk) 08:47, 29 January 2012 (UTC)[reply]
My point is, we don't need Category:Signal_towers. Either it is Category:Optical_telegraph, or another form (non-optical) of Category:Communications_towers. Signalling is the same as telecommunicating. Warning beacons are something else, and located in Category:Beacons, because they are not communicating. --Cqdx (talk) 14:05, 29 January 2012 (UTC)[reply]

en:Optical telegraph seems to define optical telegraph as a particular form or forms of signalling, rather than covering all systems of visual signalling (which would be Category:Optical communication). And I can see that some beacons are not actively signalling, but those used for transmitting messages are communicating in some way. And if beacons that are signal towers are not communications towers, what sort of towers are they? There must be some way of helpfully organising the media, but I'm not convinced by your proposed solution. What about subcat:ting beacons as warning beacons, navigation beacons, beacon towers (or tower beacons) and signal beacons, or something like that and organising appropriately? Man vyi (talk) 06:49, 30 January 2012 (UTC)[reply]

Re. your 1st sentence: yes. 3rd sentence: signal towers is a subcategory of communications towers, communications (from towers) are either optical or radio. Last sentence: seems to be off-topic, subcatergorizing beacons can be discussed elsewhere. --Cqdx (talk) 13:20, 30 January 2012 (UTC)[reply]
I would not call signalling with flags such as in (:en:Flag semaphore]], with gestures or primitive en:Heliograph "optical telegraphs", confusing too with modern real optical systems that use laser beams. I guess that en:Semaphore lines would be a more generic term. --Foroa (talk) 15:40, 8 February 2012 (UTC)[reply]
There is no such thing as a "laser telegraph", certainly not within the meaning of Category:Communications towers. -- Cqdx (talk) 17:20, 8 February 2012 (UTC)[reply]

The category contains the same as in Category:Optical telegraph (a sub-category of Category:Communications towers), therefore I move the content to that category. --Cqdx (talk) 13:44, 23 March 2012 (UTC)[reply]