6:30pm-7:30pm. Question Discover, and Explore! With a little bit of elbow-grease and a lot of ingenuity we'll be taking apart old technology to see how it works! Tools and safety gear will be provided! For technicians in grades 3-7. Calvert Library Southern Branch, 13920 H. G. Trueman Road, Solomons, 410-326-5289. CalvertLibrary.info.