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<br /> VOLUME LXXVIII, NUMBER 4, WINTER 2015<br /> VOLUME LXXVIII, NUMBER 4, WINTER 2015<br /> 2 Caltech on Social Media<br /> 3 From the Editor<br /> 4 Random Walk<br /> Solving Structures • Bird Brains • Dirty Work • And More<br /> 9 Origins<br /> A Healthy Start: Building Joint MD/ PhD Programs<br /> 10 Seeking a Balanced Equation<br /> Graduate students talk about the work they love and the campus<br /> activities that round out their professional and personal lives.<br /> 16 Inventing Love<br /> BY KATHARINE GAMMON<br /> Two Caltech grad students are taking their passion for innovation<br /> to new heights.<br /> 20 Science with a Smile<br /> BY ROD PYLE<br /> Inspired by Bill Nye’s blend of science and entertainment, Sho Takatori<br /> approaches his teaching and lab work with enthusiastic dedication.<br /> 22 Sun-Powered Sanitation for a Cleaner World<br /> BY KIMM FESENMAIER<br /> Techers d<a title="E&amp;S 025 Winter 2015 page 1" href="http://viewer.zmags.com/publication/8163deea?page=1"> VOLUME LXXVIII, NUMBER 4, WINTER 2015</a> <a title="E&amp;S 025 Winter 2015 page 2" href="http://viewer.zmags.com/publication/8163deea?page=2"> VOLUME LXXVIII, NUMBER 4, WINTER 2015 2 Caltech</a> <a title="E&amp;S 025 Winter 2015 page 3" href="http://viewer.zmags.com/publication/8163deea?page=3"> 22 Sun-Powered Sanitation for a Cleaner World BY </a> <a title="E&amp;S 025 Winter 2015 page 4" href="http://viewer.zmags.com/publication/8163deea?page=4"> multimedia Caltech on Social Media Follow us, ret</a> <a title="E&amp;S 025 Winter 2015 page 5" href="http://viewer.zmags.com/publication/8163deea?page=5"> from the editor A Grad Experience Caltech</a> <a title="E&amp;S 025 Winter 2015 page 6" href="http://viewer.zmags.com/publication/8163deea?page=6"> 4 ENGINEERING & SCIENCE WINTER 2015</a> <a title="E&amp;S 025 Winter 2015 page 7" href="http://viewer.zmags.com/publication/8163deea?page=7"> ART IN ABERRATION This image from Caltech’s semia</a> <a title="E&amp;S 025 Winter 2015 page 8" href="http://viewer.zmags.com/publication/8163deea?page=8"> random walk The Power of Gunpowder Although </a> <a title="E&amp;S 025 Winter 2015 page 9" href="http://viewer.zmags.com/publication/8163deea?page=9"> DIRTY WORK On the grounds of San Marino’s Hunting</a> <a title="E&amp;S 025 Winter 2015 page 10" href="http://viewer.zmags.com/publication/8163deea?page=10"> random walk RESEARCH UPDATE: Solving the Nuclear</a> <a title="E&amp;S 025 Winter 2015 page 11" href="http://viewer.zmags.com/publication/8163deea?page=11"> A HEALTHY START: Building Joint MD/PhD Programs </a> <a title="E&amp;S 025 Winter 2015 page 12" href="http://viewer.zmags.com/publication/8163deea?page=12"> </a> <a title="E&amp;S 025 Winter 2015 page 13" href="http://viewer.zmags.com/publication/8163deea?page=13"> Heather Curtis, second-year graduate student in d</a> <a title="E&amp;S 025 Winter 2015 page 14" href="http://viewer.zmags.com/publication/8163deea?page=14"> Zach Erickson, third-year graduate student in geo</a> <a title="E&amp;S 025 Winter 2015 page 15" href="http://viewer.zmags.com/publication/8163deea?page=15"> Ramya Korlakai Vinayak (MS ’13), PhD candidate in</a> <a title="E&amp;S 025 Winter 2015 page 16" href="http://viewer.zmags.com/publication/8163deea?page=16"> Sarah Gossan, PhD candidate in physics Hometown: </a> <a title="E&amp;S 025 Winter 2015 page 17" href="http://viewer.zmags.com/publication/8163deea?page=17"> Peter Hung (BS ’08), eight-year graduate student </a> <a title="E&amp;S 025 Winter 2015 page 18" href="http://viewer.zmags.com/publication/8163deea?page=18"> By Katharine Gammon </a> <a title="E&amp;S 025 Winter 2015 page 19" href="http://viewer.zmags.com/publication/8163deea?page=19"> Two Caltech grad students, Alex Pai and Betty Won</a> <a title="E&amp;S 025 Winter 2015 page 20" href="http://viewer.zmags.com/publication/8163deea?page=20"> The couple recruited a team to produce AstroGro, </a> <a title="E&amp;S 025 Winter 2015 page 21" href="http://viewer.zmags.com/publication/8163deea?page=21"> molecules relate to their functions. also p</a> <a title="E&amp;S 025 Winter 2015 page 22" href="http://viewer.zmags.com/publication/8163deea?page=22"> Science with a Smile By Rod Pyle </a> <a title="E&amp;S 025 Winter 2015 page 23" href="http://viewer.zmags.com/publication/8163deea?page=23"> Growing up in Sacramento, California, in </a> <a title="E&amp;S 025 Winter 2015 page 24" href="http://viewer.zmags.com/publication/8163deea?page=24"> SUN- POWERED SANITATION FOR A CLEANER </a> <a title="E&amp;S 025 Winter 2015 page 25" href="http://viewer.zmags.com/publication/8163deea?page=25"> n October 2012, graduate student Clément Cid atte</a> <a title="E&amp;S 025 Winter 2015 page 26" href="http://viewer.zmags.com/publication/8163deea?page=26"> The Caltech solar toilet unit on display at the 2</a> <a title="E&amp;S 025 Winter 2015 page 27" href="http://viewer.zmags.com/publication/8163deea?page=27"> project that they have dubbed Seva, meaning “serv</a> <a title="E&amp;S 025 Winter 2015 page 28" href="http://viewer.zmags.com/publication/8163deea?page=28"> arissa Eisler’s first science experiment could ha</a> <a title="E&amp;S 025 Winter 2015 page 29" href="http://viewer.zmags.com/publication/8163deea?page=29"> electricity; Eisler and her teammates aim to buil</a> <a title="E&amp;S 025 Winter 2015 page 30" href="http://viewer.zmags.com/publication/8163deea?page=30"> 28 ENGINEERING & SCIENCE WINTER 2015</a> <a title="E&amp;S 025 Winter 2015 page 31" href="http://viewer.zmags.com/publication/8163deea?page=31"> Vive la Difference By Lori Oliwenstein nce upo</a> <a title="E&amp;S 025 Winter 2015 page 32" href="http://viewer.zmags.com/publication/8163deea?page=32"> to admissions information and other campus resour</a> <a title="E&amp;S 025 Winter 2015 page 33" href="http://viewer.zmags.com/publication/8163deea?page=33"> its members’ needs. The CCD’s Women Mentoring Wom</a> <a title="E&amp;S 025 Winter 2015 page 34" href="http://viewer.zmags.com/publication/8163deea?page=34"> </a> <a title="E&amp;S 025 Winter 2015 page 35" href="http://viewer.zmags.com/publication/8163deea?page=35"> residents to interact with schools, an increasing</a> <a title="E&amp;S 025 Winter 2015 page 36" href="http://viewer.zmags.com/publication/8163deea?page=36"> SUPPORT THE NEXT GENERATION OF TECHERS </a> <a title="E&amp;S 025 Winter 2015 page 37" href="http://viewer.zmags.com/publication/8163deea?page=37"> in memoriam Charles A. Barnes, professor of ph</a> <a title="E&amp;S 025 Winter 2015 page 38" href="http://viewer.zmags.com/publication/8163deea?page=38"> endnotes We asked alumni: Who is the most COURAG</a> <a title="E&amp;S 025 Winter 2015 page 39" href="http://viewer.zmags.com/publication/8163deea?page=39"> Help accelerate your retirement savings with one-</a>