Product Overview
FOR USE IN SCHOOLS AND LIBRARIES ONLY. Presents the stories behind 40 things that were invented or named by accident, including aspirin, X-rays, frisbees, silly putty, and Velcro.
FOR USE IN SCHOOLS AND LIBRARIES ONLY. Presents the stories behind 40 things that were invented or named by accident, including aspirin, X-rays, frisbees, silly putty, and Velcro.