| Description |
Dr. Glenn Seaborg and his associates describe the discovery of the four "missing elements," technetium, astatine, francium, and promethium. Emphasizes the role of the cyclotron on the creation of synthetic elements. Dr. Ernest O. Lawrence explains the operation and development of high voltage accelerators from the first eight-inch cyclotron to the mammoth bevatron. Dr. Emilio Segre, a participant in the discovery of the first synthetic element, describes its discovery and demonstrates the technique used by him to identify astatine. (KQED) Film.
|
