The iconic split-flap board at 30th Street Station was removed this past weekend, but with any luck a new (and similarly noisy) board will take its place. While the novelty of the original, vintage ...

As cool as split-flap clocks and displays are, they do have a few disadvantages. The mechanism sticks out on the side, and the whole thing relies on gravity. Some people don’t care for the visual ...

Standing in the Gare du Nord train station in Paris in 2012, Dorrian Porter was transfixed by a sign. The station’s arrivals and departures board—a classic split-flap analog sign that constantly turns ...

Split flap displays! They’re mechanical, clickety-clackity, and largely commercially irrelevant in our screen-obsessed age. That doesn’t mean you can’t have a ball making one of your own, though!