On Sun, 30 Sep 2018 at 14:39, SelfishSeahorse <[email protected]> wrote:
>
> That is, we have two contradictory definitions on the wiki: the
> engineering definition according to which a tower is freestanding and
> mast guyed, and the other definition according to which 'a tower is
> accessible and provides platforms, whereas a mast only offers ladder
> steps to climb it'. (Where does this latter definition come from?)

I've just came across this article on the German Wikipedia [1] that
defines towers and masts similar to our non-engineering definition
mentioned above (translated with www.deepl.com/translator):

> A tower is a vertically aligned structure which can be walked on and which is 
> defined by its height. This means that its height is either a multiple of its 
> diameter or its thickness and/or it clearly towers above the surrounding 
> buildings or adjacent components.
>
> The term tower is to be distinguished on the one hand from the term 
> skyscraper, on the other hand from the term mast, whereby the exact 
> delimitation is often not possible, partly there are intersections, depending 
> upon context different definitions or linguistic blurriness. For example, 
> bell or church towers are usually referred to as towers even if they are not 
> accessible.
>
> In radio technology in particular - in contrast to a mast (transmitter mast), 
> which is often designed as a truss construction - a tower (transmitter tower) 
> is understood to be a accessible, not spanned (i.e. not anchored with guys) 
> upright cantilever construction.

[1]: https://de.wikipedia.org/wiki/Turm

There is a risk that towers and masts are defined differently in
English, but perhaps Martin's idea to combine the two definitions
would make sense nevertheless.

Regards
Markus

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