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.
A video about Franklinâs top 5 inventions including the bifocal. Did Others Invent Bifocals Before Franklin? The idea of a split-lens had been suggested by Zahn in 1683 and, by Hertel in 1716. This was well before Franklin was thought to have invented them in the mid to late 1770s. However, there is no indication that the Zahn and Hertel lenses served the same purpose as the modern Bifocal.