Rubik's Clock Rubik's Clock Rubik's Clock is a mechanical puzzle invented and patented by Christopher C. Wiggs and Christopher J. Taylor. The Hungarian sculptor and professor of architecture Ernő Rubik bought the patent from them to market the product under his name. It was first marketed in 1988. Rubik's Clock is a two-sided puzzle, each side presenting nine clocks to the puzzler. There are four wheels, one at each corner of the puzzle, each allowing the corresponding corner clock to be rotated directly. (The corner clocks, unlike the other clocks, rotate on both sides of the puzzle simultaneously and can never be
Professor D Professor D Damon Sajnani, better known by his stage name Professor D or ProfessorD.us is a Canadian rapper and assistant professor based in the United States. He is the lead vocalist of The Dope Poet Society and professor of African Cultural Studies at the University of Wisconsin - Madison where he teaches courses on Hip Hop and Politics in Africa and around the world. He was the inaugural Nasir Jones Hip Hop Fellow at the W.E.B. Du Bois Institute at Harvard University in 2014-15. He is known for rapping about social issues and global politics with sophisticated rhyme structures and