Construction plans for a weight rack, an adjustable incline/flat bench and a leg curl/extension machine. I’m an athlete—a competing bodybuilder—and a few years ago I was faced with a problem. In order ...

In the fever dream that was my youth, I was enamored with an odd sketch on Sesame Street featuring a ball that goes up and down a long, windy track before ending up as a pile of powder. This sequence ...

Dominoes make sense for a playful building project: They require both a sense of imagination and careful attention to each individual piece. One quiver of the wrong block and the entire thing could ...