Super-egg by Piet Hein, glass vase by Holmegaard, large vase by Würtz Ceramics, small vase and sphere by Anders Arhøj, jug by Anette Friis Brahe and bonbonnieres by Ditte Fischer, Broste and Kristina Dam In the early 1960s, the Danish mathematician–turned–poet Piet Hein invented the “super-ellipse,” a precise geometrical cross between an oval and a rectangle. He applied his new mathematical formula to everything from a Swedish traffic hub to designs for tables and chairs and, in 1965, to the 1.5-inch-tall brass nugget he called the “super-egg.” The super-egg was a three-dimensional expression of the super-ellipse—an egg that could stand on its tip. At first, it was marketed as a thinking person’s drinking game. Tip the super-egg over; if it lands on its head, drink. If it lands on its side, drink. This story is from Kinfolk Issue Twenty-One Buy Now Related Stories Design Issue 49 At Work With: Muller Van Severen How a home renovation birthed one of Europe’s most distinguished design duos. Design Fashion Issue 49 Reid Bartelme & Harriet Jung An inquiry into costume design. Design Interiors Issue 49 Mimi Shodeinde An audience with the architect. Design Interiors Issue 48 At Work With: Studio Utte A visit to the small, sophisticated Milanese studio of Patrizio Gola & Guglielmo Giagnotti. Design Issue 48 Off to Sea with Cyrill Gutsch Meet the self-appointed design ambassador for the oceans. Design Partnerships Issue 48 Delayed Gratification In partnership with Fritz Hansen, Kinfolk unearths the long history of a new classic.