Donald E. Coles, Professor of Aeronautics, Emeritus, passed away on May 2, 2013 at the age of 89. Professor Coles made pioneering contributions towards our understanding of boundary layers, turbulent shear flows, bluff-body aerodynamics, and novel experimental methods in fluid dynamics. He was a member of the National Academy of Engineering and a Fellow of both the American Institute of Aeronautics and Astronautics and the American Physical Society. In 2011 he was honored with the Donald Coles Lecture in Aerospace. He remained active till his passing, working on a book on Turbulent Shear Flow that is very near completion. [Caltech Obituary]

Professor John H. Seinfeld has been elected to the National Academy of Sciences in recognition of his distinguished and continuing achievements in original research. His research has revealed the role of organic species in aerosols and the process by which vapor molecules become incorporated into particles. Currently his work focuses on the effects of aerosols on cloud formation and Earth's climate. [Caltech Release]

Erik K. Antonsson, member of the MCE External Advisory Board and Caltech faculty in Mechanical Engineering from 1984-2009, has been named the Corporate Director of Technology for Northrop Grumman.

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