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.
Craig Counsell. Craig John Counsell (born August 21, 1970) is an American former professional baseball player and current manager in Major League Baseball (MLB). Counsell was an infielder who played sixteen seasons for five teams. Counsell is currently the manager of the Milwaukee Brewers of the National League, a position he has held since May 2015. Counsell is best known for his playoff performances in 1997 with the Florida Marlins and in 2001 with the Arizona Diamondbacks.