Theodore W. Gray is one of the founders of Wolfram Research and is currently Wolfram's Director of User Interface Technology.
He created a wooden periodic table with compartments for each of the elements. This table won him an Ig Nobel Prize in Chemistry.
He writes a regular column for Popular Science entitled "Gray Matter", which in 2009 were published as a collection in a book titled "Mad Science: Experiments you can do at home - But probably shouldn't."