order

In the world of small things, shape, order and orientation are surprisingly important, according to findings from a new study by chemists at Washington University in St. Louis. Lev Gelb, WUSTL associate professor of chemistry, his graduate student Brian Barnes, and postdoctoral researcher Daniel Siderius, used computer simulations to study a very simple model of molecules on surfaces, which looks a lot like the computer game “Tetris.” They have found that the shapes in this model (and in the game) do a number of surprising things.

Physics has a reputation for being the toughest of the high school science courses. But visual models of motion, acceleration, waves, projectiles and other principles help students of all ages build an understanding of physical science concepts. For Jack Wiegers, biology instructor, and Patrick Gibbons, Ph.D., professor of physics, these ideas are a key part of science for students from kindergarten through grade 12. The pair instructs four Science Outreach graduate courses in physical science designed for K-8 teachers. They’ve also worked with high school teachers in short workshops and in year-long professional learning communities.

“Da police are not here to create disorder; dere here to preserve disorder.” — Richard J. Daley, Chicago mayor, explaining to the media the role of the police during the riotous 1968 Democratic National Convention. David Kilper/WUSTL PhotoThe order team.Police keep order. That’s why, for example, they issue tickets for “disturbing the peace.” Thus the only logical conclusion to Mayor Daley’s famous quote above — other than dismissing it as the result of a tangled tongue — is sometimes disorder spawns order. Sounds impossible, right? Wrong. According to a computational study conducted by a group of physicists at Washington University in St. Louis, one may create order by introducing disorder. More…