Photo by Bruce A. Scruton/New Jersey Herald – Kristen Smith, a sophomore at Pope John XXIII Regional High School in Sparta, and her father, Rick Smith, center, listen as Tony Farina, senior aeronautics engineer at Picatinny Arsenal, talks about the field of aeronautics on Thursday at the arsenal’s fifth annual “Introduce a Girl to Engineering” event. Photo by Bruce A. Scruton/New Jersey Herald – Morgan Medunick, an eighth-grader at Halsted Middle School in Newton, and her father, Jim Medunick, center, listen as Tom Hunt, a logistics integration chief at Picatinny Arsenal, explains a technical manual for a handgun on Thursday during the arsenal’s “Introduce a Girl to Engineering” event.