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<br /> IN ThIs IssuE:<br /> A Guide to Sustainability • A Planet Hunter<br /> • A Nicotine AddictionVolumE lXXIII, NumbEr 3, summEr 2010<br /> California Institute of Technology<br /> on the cover<br /> the dome of the 200-inch hale telescope on Palomar<br /> Mountain on a summer evening. Just to the left of the dome,<br /> you can see the center of the Milky Way.<br /> an eel’s wake<br /> A simulated eel swims by, leaving behind its wake. the blue wisps represent Lagrangian<br /> coherent structures, which are boundaries that separate different types of flow. In this<br /> case, the structures divide the swirling vortices from the rest of the fluid. these structures<br /> are important not only in understanding how sea creatures propel themselves, but also in<br /> understanding other flu<a title="E&amp;S Summer 2010 page 1" href="http://viewer.zmags.com/publication/17b7c86c?page=1"> IN ThIs IssuE: A Guide to Sustainability • A Plan</a> <a title="E&amp;S Summer 2010 page 2" href="http://viewer.zmags.com/publication/17b7c86c?page=2"> </a> <a title="E&amp;S Summer 2010 page 3" href="http://viewer.zmags.com/publication/17b7c86c?page=3"> Volume lXXIII, number 3, summer 2010 2 rando</a> <a title="E&amp;S Summer 2010 page 4" href="http://viewer.zmags.com/publication/17b7c86c?page=4"> random Walk a universe of astronomical data L</a> <a title="E&amp;S Summer 2010 page 5" href="http://viewer.zmags.com/publication/17b7c86c?page=5"> Left: The exponential rise in information is chan</a> <a title="E&amp;S Summer 2010 page 6" href="http://viewer.zmags.com/publication/17b7c86c?page=6"> tolerating a fetus Your immune system recognizes</a> <a title="E&amp;S Summer 2010 page 7" href="http://viewer.zmags.com/publication/17b7c86c?page=7"> Right: Looking kind of like a bathtub o</a> <a title="E&amp;S Summer 2010 page 8" href="http://viewer.zmags.com/publication/17b7c86c?page=8"> first steps for </a> <a title="E&amp;S Summer 2010 page 9" href="http://viewer.zmags.com/publication/17b7c86c?page=9"> t cells make a commitment When does a cell choo</a> <a title="E&amp;S Summer 2010 page 10" href="http://viewer.zmags.com/publication/17b7c86c?page=10"> Associate Professor of Aeronautics a</a> <a title="E&amp;S Summer 2010 page 11" href="http://viewer.zmags.com/publication/17b7c86c?page=11"> edges that the experience can be a bit bitterswee</a> <a title="E&amp;S Summer 2010 page 12" href="http://viewer.zmags.com/publication/17b7c86c?page=12"> Sustainable Energy—Without the Hot Air </a> <a title="E&amp;S Summer 2010 page 13" href="http://viewer.zmags.com/publication/17b7c86c?page=13"> MacKay at the Houses of Parliament with the most </a> <a title="E&amp;S Summer 2010 page 14" href="http://viewer.zmags.com/publication/17b7c86c?page=14"> Above: Plotting population density versus per- pe</a> <a title="E&amp;S Summer 2010 page 15" href="http://viewer.zmags.com/publication/17b7c86c?page=15"> Courtesy of SunPower Corporation </a> <a title="E&amp;S Summer 2010 page 16" href="http://viewer.zmags.com/publication/17b7c86c?page=16"> Right: In Japan, caped cru- saders Tankman and </a> <a title="E&amp;S Summer 2010 page 17" href="http://viewer.zmags.com/publication/17b7c86c?page=17"> In general, you can reduce the heat loss from you</a> <a title="E&amp;S Summer 2010 page 18" href="http://viewer.zmags.com/publication/17b7c86c?page=18"> </a> <a title="E&amp;S Summer 2010 page 19" href="http://viewer.zmags.com/publication/17b7c86c?page=19"> couple of decades, and clean coal is still at the</a> <a title="E&amp;S Summer 2010 page 20" href="http://viewer.zmags.com/publication/17b7c86c?page=20"> Discovering New Worlds In</a> <a title="E&amp;S Summer 2010 page 21" href="http://viewer.zmags.com/publication/17b7c86c?page=21"> Left: John Johnson in front of the 200- </a> <a title="E&amp;S Summer 2010 page 22" href="http://viewer.zmags.com/publication/17b7c86c?page=22"> To learn more and to watch a video demonstrating </a> <a title="E&amp;S Summer 2010 page 23" href="http://viewer.zmags.com/publication/17b7c86c?page=23"> An artist’s rendering of a ga</a> <a title="E&amp;S Summer 2010 page 24" href="http://viewer.zmags.com/publication/17b7c86c?page=24"> Once we find more planets like our own, it’ll furt</a> <a title="E&amp;S Summer 2010 page 25" href="http://viewer.zmags.com/publication/17b7c86c?page=25"> An artistic rendering of a so-called hot Jupiter </a> <a title="E&amp;S Summer 2010 page 26" href="http://viewer.zmags.com/publication/17b7c86c?page=26"> Addicted to Nicotine </a> <a title="E&amp;S Summer 2010 page 27" href="http://viewer.zmags.com/publication/17b7c86c?page=27"> By Michael Torrice two decades. (See “Smoke Gets </a> <a title="E&amp;S Summer 2010 page 28" href="http://viewer.zmags.com/publication/17b7c86c?page=28"> Above: Dennis Dougherty (left), the Hoag Pro- fes</a> <a title="E&amp;S Summer 2010 page 29" href="http://viewer.zmags.com/publication/17b7c86c?page=29"> out of the π systems. With each loss of charge, t</a> <a title="E&amp;S Summer 2010 page 30" href="http://viewer.zmags.com/publication/17b7c86c?page=30"> Below: Grad student Nyssa Puskar and the OpusXpre</a> <a title="E&amp;S Summer 2010 page 31" href="http://viewer.zmags.com/publication/17b7c86c?page=31"> “The receptor has 3,000 amino acids, but by chang</a> <a title="E&amp;S Summer 2010 page 32" href="http://viewer.zmags.com/publication/17b7c86c?page=32"> cells within the midbrain to slowly die off.) Whe</a> <a title="E&amp;S Summer 2010 page 33" href="http://viewer.zmags.com/publication/17b7c86c?page=33"> in memoriam Left: Andrew Lange, Frances Arnold, </a> <a title="E&amp;S Summer 2010 page 34" href="http://viewer.zmags.com/publication/17b7c86c?page=34"> A youthful-looking Lange in his dorm room on the </a> <a title="E&amp;S Summer 2010 page 35" href="http://viewer.zmags.com/publication/17b7c86c?page=35"> Although the CMB varia- tions are faint, t</a> <a title="E&amp;S Summer 2010 page 36" href="http://viewer.zmags.com/publication/17b7c86c?page=36"> said, and codified them as “Dave’s Rules” for a me</a> <a title="E&amp;S Summer 2010 page 37" href="http://viewer.zmags.com/publication/17b7c86c?page=37"> A spiderweb bolometer, with a dime for scale. The</a> <a title="E&amp;S Summer 2010 page 38" href="http://viewer.zmags.com/publication/17b7c86c?page=38"> hans w. liepmann 1914-2009 Hans Wolfgang Liepman</a> <a title="E&amp;S Summer 2010 page 39" href="http://viewer.zmags.com/publication/17b7c86c?page=39"> obituaries Applied Mathematics, Emeritus. “They l</a> <a title="E&amp;S Summer 2010 page 40" href="http://viewer.zmags.com/publication/17b7c86c?page=40"> edwin s. munger 1921-2010 Edwin S. Munger, profe</a> <a title="E&amp;S Summer 2010 page 41" href="http://viewer.zmags.com/publication/17b7c86c?page=41"> On Fact and Fraud: Cautionary Tales from the Fron</a> <a title="E&amp;S Summer 2010 page 42" href="http://viewer.zmags.com/publication/17b7c86c?page=42"> </a> <a title="E&amp;S Summer 2010 page 43" href="http://viewer.zmags.com/publication/17b7c86c?page=43"> </a> <a title="E&amp;S Summer 2010 page 44" href="http://viewer.zmags.com/publication/17b7c86c?page=44"> Letters </a> <a title="E&amp;S Summer 2010 page 45" href="http://viewer.zmags.com/publication/17b7c86c?page=45"> Engineering & Science welcomes letters. Send corr</a> <a title="E&amp;S Summer 2010 page 46" href="http://viewer.zmags.com/publication/17b7c86c?page=46"> </a> <a title="E&amp;S Summer 2010 page 47" href="http://viewer.zmags.com/publication/17b7c86c?page=47"> </a> <a title="E&amp;S Summer 2010 page 48" href="http://viewer.zmags.com/publication/17b7c86c?page=48"> California Institute of Technology Pasadena, Cali</a>