Matt Craig joined Valley News Live on July 4
Dr. Matt Craig, Physics & Astronomy, joined John Trierweiler live on Valley News Live to show alternatives to fireworks on July 4. Watch the videos: http://www.valleynewslive.com/video?clipId=9058433&autostart=true http://www.valleynewslive.com/video?clipId=9058443&autostart=true