This is a one-semester course designed primarily for BT/BS students, but can be taken by any students who meet the pre-requisites. This course is designed to provide students with information about the discoveries made, ideas and concepts advanced, and the knowledge gained in physics during the past hundred years. Topics include: relativity, corpuscular nature, matter waves, atomic physics, quantum mechanics, quantum theory or hydrogen, many-electron atoms, molecular structure, statistical mechanics, and properties of solids. Lecture/Laboratory. This course includes lab work covering the topics listed for this course.