Lecture 23: Worlds Within: Atoms
What is Matter? This lecture reviews the nature of matter from\nsubatomic to atomic scales, and introduces the ideas of atomic\nstructure, atomic number (number of protons), the elements, isotopes,\nradioactivity, and half-life. We conclude with a brief overview of the\nfour fundamental forces of nature: gravitation, electromatgnetic, and\nthe strong and weak nuclear forces. Recorded 2006 Oct 24 in 100\nStillman Hall on the Columbus campus of The Ohio State University.