Pressure measurement because atmospheric pressure is always changing and the reference in this case is fixed at 1 bar. To produce an absolute pressure sensor, the manufacturer seals a high vacuum behind the sensing diaphragm. If the process-pressure connection of an absolute-pressure transmitter is open to the air, it will read the actual barometric pressure. The SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N·m or kg·m·s). This special name for the unit was added in 1971; before that, pressure in SI was expressed in units such as N·m. When indicated, the zero reference is
Jean-Pascal Lacoste Jean-Pascal Lacoste Jean-Pascal Lacoste (also known as Jean-Pascal or Jipé; born 21 June 1978) is a French singer, actor and TV host. In 2001, he participated in the first edition of French TV reality show "Star Academy", but was eliminated on 5 January 2002. He was semi-finalist and participated in the Star Academy Tour. He remained famous for his quarrells with Jenifer Bartoli. After his participation, he released his singles "L'Agitateur" (#2 in France, #1 in Belgium) and "Rue de la liberté" (#13 in France, #3 in Belgium) and his debut album "Jean-Pascal, qui es-tu ?" (#7 in France, #1