Nintendo tumbler puzzle as an easter egg in the video game "". In WarioWare Gold, it appears as one of the microgames, in which you need to match 4 marbles in it. Nintendo tumbler puzzle The Nintendo tumbler puzzle, also known as the "Ten Billion Barrel" in English and originally in Japanese, is a mathematical puzzle in the style of Rubik's Cube. It was invented by Gunpei Yokoi of Nintendo in 1980 and was covered by (until the patent expired in March 1995 due to non-payment of a maintenance fee). It consists of a "cylinder" of transparent plastic divided into six levels, together
Howard Davis (professor of architecture) Christopher Alexander on "The Production of Houses" (1985), an account of an innovative housing project in Mexicali, Baja California, Mexico. His current research is concerned with urban buildings that combine commercial and residential uses; museums and memorials to war; housing; and American architectural education. His latest book is "Living Over the Store: Architecture and Local Urban Life." Davis was founding co-editor of "Buildings & Landscapes", the journal of the Vernacular Architecture Forum. The Association of Collegiate Schools of Architecture honored Davis with the ACSA Distinguished Professor Award in 2009. Howard Davis (professor of architecture) Howard Davis is an American writer