Former silver-medal boxing champion, sign painter, uranium prospector, and soldier, Paul began college at the age of 27, with the help of the GI Bill. He pioneered the conceptual approach to teaching physics at the City College of San Francisco. This approach became the foundation of his landmark textbook, Conceptual Physics, which has since reached the hearts and minds of millions of students worldwide. Paul has taught as a guest teacher at numerous middle schools and high schools, the University of California at both the Berkeley and Santa Cruz campuses, and the University of Hawaii at both the Manoa and Hilo campuses. He also taught for 20 years at the Exploratorium in San Francisco, which honored him with its Outstanding Educator Award in 2000. Paul is also a coauthor of Conceptual Physical Science (with John and Leslie), as well as coauthor of Conceptual Integrated Science (with Suzanne, John, and Jennifer).
When atoms of an element are heated to a point where they emit light, it is found that they only emit characteristic frequencies of color. Demonstrations of H, He, and Ne are shown. Duration: 5:37
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