Topic	Excentric coaxial cable
	The heart of an electrical engineer beats particularly hard here. The question is very practical - how does the wave resistance of a coaxial cable change if the inner conductor is not centrally located but has an offset? And that is where the bipolar coordinates come in handy - if you still know bipolar coordinates. Just take a look - it seems to be dry art. The practitioner is made aware of the mechanical limits of a good coaxial cable or cable connection.
Presentation	A brief introduction to bipolar coordinates and their application on 10 pages and 1.4 MB
Data	A simple task on one sheet and only 20 kB file size
Notes	It is nothing special - but sometimes even small things are great fun January 2018