Due to a request from the Raleigh News & Observer (N&O), and in line with North Carolinaâs State Personnel Law, UNC Health Care will share an updated salary database with the N&O in mid-February. We do not know when the N&O will publish this information.
(Accessed March 2, 2011). Shortly after John Hetrick had witnessed an automobile accident he received a patent in 1953 for a âsafety cushion assembly for automotive vehicles.â His U.S. Patent No. 2,649,311 was the first prototype for airbags. 5.
Boyle's air pump. An air pump is a device for pushing air. Examples include a bicycle pump, pumps that are used to aerate an aquarium or a pond via an airstone; a gas compressor used to power a pneumatic tool, air horn or pipe organ; a bellows used to encourage a fire; a vacuum cleaner and a vacuum pump. In 1649, Otto von Guericke invented the spool vacuum air pump. This pump was called air pump in 19th century lexicons. The first effective air pump constructed in England for scientific purposes was made in 1658 by Robert Hooke for Robert Boyle.