Hi all

Since early February, I´ve been living very close to a tramway. It´s right outside the building, and I live on the 3rd floor.
Every time a train stops there, the image becomes unstable, like slowly moving from side to side for 10 seconds.
Well, let me correct myself: It happends often, but I´m not 100 % sure that it happends when the train stops.
So my question is: Can there be some very heavy magnets in those trains causing this? Is that normal?
If it´s not normal, could it be that the screen has become more sensitive to certain things, such as the trains, because I in December, forgetting about what a bad idea that is, put up my BOSE speakers right next to it for 24 hours, where it took a day or two getting it back to looking normal again?

Trains use electromagnets for braking, and trust me, they are EXREMELY powerful!
While I don't have exact figures, the power used in these magnets is measured in kilowatts!

Ok, so that´s prolly it. I´ve learned to live with this, and I´ll choose to let myself fascinate about all these kilowatts every time it happends