Competitive Service versus Excepted Service Positions. There are two types of non-executive positions in the federal government: 1) those that are in the competitive service, and 2) those that are in the excepted service. Competitive Service â Competitive service positions are subject to the civil service laws passed by Congress.
Post to Facebook. Kevlar inventor Stephanie Kwolek dies at 90 Stephanie Kwolek, the DuPont scientist whose invention, Kevlar, has saved countless lives as the essential ingredient in body armor, has died. Kwolek, of the Sharpley neighborhood in Talleyville, died Wednesday following a brief illness, said her friend, Rita Vasta, who is handling Kwolek's affairs. She was 90.
Robert Augustus Chesebrough, (January 9, 1837 â September 8, 1933) was an American chemist. He discovered petroleum jelly which he marketed as Vaseline and he founded the Chesebrough Manufacturing Company.hesebrough began his career as a chemist clarifying kerosene from the oil of sperm whales. The discovery of petroleum in Titusville, Pennsylvania, rendered his job obsolete, so he traveled to Titusville to research what new materials might be created from the new fuel.