Theodore Gray

Theodore Gray is the author of Popular Science magazine's “Gray Matter” column, the proprietor of periodictable.com and the creator of the iconic photographic periodic table poster seen in universities, schools, museums and TV shows from “MythBusters” to “Hannah Montana”. In his other life he is cofounder of the major software company Wolfram Research, creators of the world's leading technical software system, Mathematica™. He lives in Champaign-Urbana, Illinois.