Introduction Jim McLefresh retired as an E-8 from the U. S. Air Force after twenty years with AA, AS, BS, MS & MA degrees. After retiring from the Air Force, he taught Intro to Physics at […]
                 Introduction Jim McLefresh retired as an E-8 from the U. S. Air Force after twenty years with AA, AS, BS, MS & MA degrees. After retiring from the Air Force, he taught Intro to Physics at […]