Using objects that might clutter the basement of any optics-loving physicist, Mary Masterman built a home-made Raman spectra system. This achievement won the 17-year-old from Westmoore High School in Oklahoma City the top prize at the Intel Science Talent Search on March 13.
Scientists use the Raman method to measure the vibrational energy of molecules. Masterman put together a $300 system consisting of a laser, a digital camera, a variety of lenses, and a prismlike object that disperses light. She tested it on acetone, toluene, and a few household items. Most of her measurements matched those obtained by commercial systems, which can cost up to $100,000. That sum is equal to the scholarship Masterman won for her first-place finish.