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.
Christiane Seidel, Actress: Godless. Christiane Seidel is an international actress who stars as Martha, a mysterious free-spirited woman in the Netflix mini-series, Godless. She was recently known as Sigrid Mueller, the murderous Norwegian nanny-turned-wife to Michael Shannon's rogue FBI Agent Nelson Van Alden on HBO's Boardwalk Empire.