Early in December, the Siemens Foundation announced the national winners of the Siemens Westinghouse Competition in Mathematics, Science, and Technology. High school students from across the nation submitted reports on their research to the Siemens Westinghouse judges, then selected students made oral presentations on their work. At the end of the process, the top prize in the individual category went to Steven J. Byrnes, a senior at Roxbury Latin School in West Roxbury, MA, for a mathematics project entitled “Poset-Game Periodicity”, in which he proved a significant new theorem on poset games. The award includes a $100,000 scholarship that Byrnes plans to use to study mathematics at Harvard. See http://www.siemens-foundation.org for more information.