Scott Calvin has been using x-ray absorption fine structure (XAFS) since 1998 to study systems as diverse as solar cells, magnetic nanoparticles, soil samples, battery cathodes, analogues to atmospheric dust particles, and pigments used in 18th-century paintings. Dr. Calvin is currently the director of the prehealth program at Lehman College of the City University of New York, helping students their achieve their dreams of becoming physicians, dentists, pharmacists, veterinarians, and more.