Study finds particles, molecules prefer not to mix
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.
Washington University physicists begin measurement of Genesis samples
USAF 388th Range SqdGenesis was recovered in the Utah desert with fears that all data were lost.Scientists at Washington University in St. Louis have begun to measure noble gases present in the solar wind delivered to Earth by the Genesis spacecraft, the first sample return mission since the lunar Apollo missions in the late 1960s and early 1970s.