The dissection of found objects (patrons welcome to bring their own), emphasizing the importance of analysis and the development of the valuable skill of reverse engineering. Challenge Saturday, the last Saturday of each month, will culminate in two visitor contests––the first to successfully evaluate the use of parts from the original objects in the new constructions, and the second to draw diagrams/llustrations of the operations of either the original discarded objects or the new and improved creations. Activities included with admission. Adults $11.75; Children/Seniors $9.75