I was watching season 2 of “The Wire” (never saw it before) and a detective was consulting with a representative of the Maryland Bureau of Mines, who subtly whi

I was watching season 2 of “The Wire” (never saw it before) and a detective was consulting with a representative of the Maryland Bureau of Mines, who subtly whipped out a slide rule to produce some result. What was nice was that it wasn’t “look whose got a slide rule!” As much as “hey, he figured that out quickly!”