The first Sunday of the Advent period calls for Christmas decorations and lights to pop out of the boxes where you left them the year before. The “Christmas equipment” is a nice warm touch in a dark and cold period and definitely a little event for the children at home. A few minutes of work and your house looks cozier such that you ask yourself why you do not keep the light all year around.
This year, the standard, entrenched practice of installing the lights at the windows experienced a significant delay when I made a discovery in one of our cupboards in the kitchen. I had never noticed it before and I still do not know how I could ignore it for so long. Take a look at this:
So, this is a set of eight glasses and a pitcher that my wife purchased even before we met each other, so it is pretty old :-). It has been well preserved all these years and occasionally used with guests. It is not the most refined one we have in the house (grading guests, uh?) but no one has ever complained. Those colors and round shapes call for a joyful friendly time tasting lemonade.
Not to the eyes of an EMD-trained person.
Take a closer look at one of the glasses:
To me, these are the CAD drawings of a concentrated-winding stator for an electrical machine. The lamination sheet has twelve slots which are somewhat large in relation to the stator yoke, maybe indicating that we are dealing with a machine with a high number of pole pairs. To be entirely honest, the teeth show a pretty thin guide for the magnetic flux, most probably reaching magnetic saturation with pretty low currents. Not a good design, overall.
Now you tell me, why on Earth the designer of this famous Scandinavian glass brand put a stator lamination drawing on a glass? Few possible reasons:
- The partner of the designer is an EMD person, not necessarily working at KTH, but somewhere in the world. And he/she is pestering the designer about FEM simulations in such a way that the poor designer dreams about CAD drawings overnight and puts them in his/her daily artistic work.
- The designer genuinely thinks that CAD drawings of stator lamination are a piece of art (general loud laugh).
- The designer did not have any good idea for this series of glasses and googled for inspiration a series of random words taken from the first-morning radio program. Maybe they were talking about challenges in electromobility.
- The designer came up with this drawing entirely on his/her own. Strange how the brain works sometimes. In difficult times, our mind goes back to primordial needs, and we all know how important electrical machines are for our daily life :-). In such a case, I would like to propose the glass designer as an honorary member of KTH EMD.
I did not share these thoughts at home. I am not sure they would have been well-received on the first Sunday of Advent.
Still, a question floats in the air: where is the rotor?