Correction
NOV 01, 2004
DOI: 10.1063/1.1839367
August 2004, page 31 —The caption for the bottom left picture has the names reversed. Juan Guillermo Diaz Ochoa, a Colombian student at the University of Mainz in Germany, is on the right and Kamran-ul-Hasan of Pakistan’s Ghulam Ishaq Khan Institute of Engineering Sciences and Technology is on the left.
© 2004. American Institute of Physics
