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.
Martha R. Herbert, PhD, MD, is an assistant professor of neurology at Harvard Medical School, a pediatric neuroscientist at the Massachusetts General Hospital in Boston, and an affiliate of the Harvard-MIT-MGH 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.