Afternoon Delight is a daily diversion for when you’re just back from lunch, but not quite ready to get back to work. Check back tomorrow at 1 p.m. for another one.

OK, so it’s actually just an ad for an app. But it’s a pretty cool art app ad. I like the way the dancers bend, the tree grows, Audrey and Marilyn pivot — across dozens of paintings and prints. Ah, yes, the basic science of animation.