Obama Presents National Medals Of Science And Technology And Innovation

WASHINGTON, DC - NOVEMBER 20: U.S. President Barack Obama (R) applauds for Alexandre Chorin of the University of California, Berkeley, after presenting him with the National Medal of Science in the East Room of the White House November 20, 2014 in Washington, DC. According to the White House, Chorin was awarded the medal "for the development of revolutionary methods for realistic fluid-flow simulation, now ubiquitous in the modeling and design of engines, aircraft wings, and heart valves, and in the analysis of natural flows." The medals are the highest honors bestowed by the United States Government for achievements in science, technology, and innovation. (Photo by Chip Somodevilla/Getty Images)