[Tagging] Benefits of namespaces

[Xavier]

On Thu, Dec 20, 2018 at 01:00:20PM +0100, Sergio Manzi wrote:
> I *never *heard of a transformer's /tertiary/, thus: try asking an 
> electrical engineer...

In general, a transformer can have 1..N primary windings and 1..N 
secondary windings:

https://www.electronics-tutorials.ws/transformer/multiple-winding-transformers.html

The most common is the 1:1 (single primary, single secondary) 
transformer, followed next by a 1:N style (one primary, multiple 
secondary, this is usually used to provide plural output voltages from 
the same single transformer).

But in the general case (which is what OSM would, at some point, want 
to be able to cover), a transformer is N:N with each N being 1..X.