Today begins a new edition of our blog feature “Variations on a Theme,” in which we devote digital ink to a topic that fascinates us. This week, it’s pinball.

Pinball week coincides with Miles Raymer’s feature story on the Stern Pinball factory and the company’s new AC/DC machine. The piece, a terrific read, contemplates the future of pinball in the face of changing times.

And in case you missed it, here’s “Protest Week,” last week’s “Variations on a Theme.”