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.
Harvard Physician, Autism Expert, Cautions Los Angeles School District on WiFi. Martha Herbert, PhD, MD of Harvard Medical School, a neurologist and neuroscientist who is also on the staff at Massachusetts General Hospital, cautions Los Angeles Unified School District on the use of WiFi in schools. Dr.Herbert says: