Confusion and a lot of questions exist as to detonation and pre-ignition. Sometimes you hear mistaken terms like pre-detonation. Detonation is one phenomenon that is abnormal combustion. Pre-ignition is another phenomenon that is abnormal combustion.
From Wikipedia, the free encyclopedia. Martha Herbert is an American physician and assistant professor of neurology at Harvard Medical School and pediatric neurologist at Massachusetts General Hospital. Herbert is also director of the TRANSCEND program at the Athinoula A. Martinos Center for Biomedical Imaging.
Richard Wormser, Director: The Rise and Fall of Jim Crow. Richard Leopold Wormser (born November 11, 1933) is a documentary filmmaker and the author of books, primarily for young adults. Born and raised on the Upper West Side of Manhattan, he is the son of Irving Wormser, who worked in distribution for Columbia Pictures, and Dorothy Smolen.