The ACC tournament has a new design. 85 Ways to Tie a Necktie Two mathematical physicists at the University of Cambridge have proved that there are 85 ways to tie a necktie, including 10 that meet all the demands of style. Only four of these knots were previously known. Finding a Place for Individual Rights In 1970, a troubling theorem seemed to prove that no consistent system of social choice can accommodate individual rights. New work by Donald Saari resolves the problem.
Social choice is a little-known area of mathematics accessible to middle and high school students.
The moving average, a simple but little-known statistical tool, can help us decide whether the great home run derby of 1998 is part of a trend, or just a random fluctuation. Includes web links to sources of baseball data. Recent storms filled Falls Lake and forced release of water, prolonging the flooding downstream. There's a culprit, and it's all of us. The dinosaurs may be gone, but dinoflagellates are on the loose in North Carolina's estuaries.