Capacitor discharge ignition pressure inside the cylinder. Capacitor discharge ignition Capacitor discharge ignition (CDI) or thyristor ignition is a type of automotive electronic ignition system which is widely used in outboard motors, motorcycles, lawn mowers, chainsaws, small engines, turbine-powered aircraft, and some cars. It was originally developed to overcome the long charging times associated with high inductance coils used in inductive discharge ignition (IDI) systems, making the ignition system more suitable for high engine speeds (for small engines, racing engines and rotary engines). The capacitive-discharge ignition uses capacitor discharge current to the coil to fire the spark plugs. The history of the capacitor
Maritime Archaic Maritime Archaic The Maritime Archaic is a North American cultural complex of the Late Archaic along the coast of Newfoundland, the Canadian Maritimes and northern New England. The Maritime Archaic began in approximately 7000 BC and lasted into the 18th century. The culture consisted of sea-mammal hunters in the subarctic who used wooden boats. Maritime Archaic sites have been found as far south as Maine and as far north as Labrador. Their settlements included longhouses, and boat-topped temporary or seasonal houses. They engaged in long-distance trade, as shown by white chert from northern Labrador being found as far south as