Navy pay scales are directly proportional to the rank and amount of time a person has served in the Navy. Pay scales for the Navy personnel are further modified by their full-time or part-time status. More » Government & Politics Military

The potential of Hydrogen, or pH, scale was invented by the Danish biochemist Soren Peter Lauritz Sorensen. He introduced this scale in 1909 to measure the acidity and basicity of substances. More »

Sulfuric acid has a pH of 0.3 at a normality of 1 N, a pH of 1.2 at 0.1 N and a pH of 2.1 at 0.01 N. When using molar concentration, sulfuric acid has a pH of 2.75 at 1 millimole per liter, a pH of 1.87 at 10 millimoles ... More »

The official Department of the Navy website provides separate rank structure charts for enlisted personnel and commissioned and warrant officers, and the charts include the pay grade, rate, abbreviation and insignia for ... More »

Navy ranks begin with Chief Warrant Officers and end with Fleet Admiral, a wartime-only rank. In between are junior officers -- Ensigns, Lieutenants Junior Grade, Lieutenants, Lieutenant Commanders -- and senior officers... More » Government & Politics Military

Pay rates for Navy enlisted ranks vary by rank and years of service. There are two levels of enlisted ranks: E-1 to E-5 and E-6 to E-9. The Defense Finance and Accounting Service has a complete list of military pay chart... More » Government & Politics Military

A U.S. Navy Chief Petty Officer is the seventh highest rank among enlisted personnel in the Navy. The rank is above petty officer first class, but below senior chief petty officer. More » Government & Politics Military