A direct marketing campaign may use multiple communications channels including mail, e-mail, phones, and face-to-face contact (See also Direct Mail Marketing) . Different channels will be selected based on the target group.
When Dr. Philip Drinker developed the iron lung in 1928, he was responding to a terrifying new disease that was causing sudden paralysis. Doctors called it poliomyelitis â or polio. The onset of the illness was sudden, with fever followed by acute paralysis.
Most of the molten iron from a Blast Furnace is used to make one of a number of types of steel. There isn't just one substance called steel - they are a family of alloys of iron with carbon or various metals. More about this later . . . Steel-making: the basic oxygen process.