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.
Ruth Westheimer (born June 4, 1928), better known as Dr. Ruth, is a German-born, Jewish immigrant to the United States who became famous as a sex therapist, media personality, actress, voice actress, and author. Her media career began in 1980 with the radio show, Sexually Speaking, which continued until 1990.