AMERICAN EXPERIENCE: "MR. TORNADO"
PBS, 9:00 p.m. ET
Does the name Tetsuya Theodore Fujita ring a bell? It didn’t to me. But he’s the scientist who, more than anyone else, established the science behind severe storms. The measure of tornado damage intensity, the F-scale, is named after him. But his interest in the extent of the damage of cataclysmic events is not at all limited to weather patterns: He began by analyzing the reach and devastation of the nuclear explosions at Hiroshima and Nagasaki. Check local listings.