Sossina M. Haile : Fuel Cells: Powering Progress in the 21st Century 1/29/2003 [56k modem] [broadband] [cable/DSL] 51 minutes Dr. Sossina Haile, associate professor of materials science at Caltech, discussed the issues we face in the long-term challenges in meeting our ever-increasing energy demands while maintaining the quality of our natural environment and ensuring our national security. Fuel cells offer a possible solution, but many technical hurdles remain. Haile provides a brief overview of current fuel-cell and associated fuel-delivery technologies, and describes recent breakthroughs at Caltech in materials design and engineering.