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News From the Field
Of Traffic Jams, Beach Sands and the Zero-temperature Jamming Transition

May 13, 2009

chemistry and materials graphic Researchers at the University of Pennsylvania and the University of Chicago have created a model to better understand jamming. The study presents the first experimental evidence of a vestige of the zero temperature jamming transition--the density at which large, loose objects such as gas bubbles in liquid, grains of sand or cars become rigid solids such as foam, sand dunes or traffic jams--in a system of small particles where thermal energy is important. Full Story

Source
University of Pennsylvania

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2015, its budget is $7.3 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives about 48,000 competitive proposals for funding, and makes about 11,000 new funding awards. NSF also awards about $626 million in professional and service contracts yearly.

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