Rubik's family cubes of all sizes Rubik's family cubes of all sizes The original Rubik's cube was a mechanical 3×3×3 cube puzzle invented in 1974 by the Hungarian sculptor and professor of architecture Ernő Rubik. Extensions of the Rubik's cube have been around for a long time and come in both hardware and software forms. The major extension have been the availability of cubes of larger size and the availability of the more complex cubes with marked centres. The properties of Rubik’s family cubes of any size together with some special attention to software cubes is the main focus of this article. Many properties are mathematical
1974 Goyder state by-election 1974 Goyder state by-election The Goyder state by-election, 1974 was a by-election held on 8 June 1974 for the South Australian House of Assembly seat of Goyder. This was triggered by the resignation of former Premier and Liberal and Country League/Liberal Movement MHA Steele Hall, who resigned to run for the Australian Senate at the 1974 federal election. Created and first contested at the 1970 state election, the seat had been held by the Liberal parties since its creation. Hall won the seat at the 1973 state election as an LCL candidate but afterward changed to the LM. D D