Dick Bipes is a retired electrical engineer with a long-time hobby of woodworking that started in his dad’s shop when he was a boy. "I enjoy taking on custom woodworking projects for myself, friends and relatives, and customers. Steampunk clepsydra is a water clock whose basic design dates back to the 3rd century B.C."

"A chamber is constantly filled with water and is periodically drained by a siphon. A float connected to a mechanism displays the time. I use an electric pump regulated with a microcontroller and software to ensure a precise one-minute cycle time and timekeeping accuracy."

Instructions to make your own are available here.