Hunh. And here I would have thought that Hinton cubes were quite topical. I wasn't entirely unserious about the fad, either. Flatland: A Romance of Many Dime

Hunh. And here I would have thought that Hinton cubes were quite topical. I wasn't entirely unserious about the fad, either. Flatland: A Romance of Many Dimensions was made in 1884 and for a while, speculation and attempts at visualization of higher dimensions were popular. Hinton coined "tesseract" in 1888, and by 1904 his book The Fourth Dimension introduced his cubes. In one of Martin Gardner's books I had found a letter discussing a potential downsides of such studies, that some began to inescapably visualize the exercise progression which went along with Hinton's cubes, much to the dismay of a few afflicted. The Thirteenth Duke of Wybourne, however, is from The Fast Show; I do a passable impression.