The Navy Chief Petty Officer emblem is symbolized by a fouled anchor with the letters USN centered on the anchor. Officially the letters stand for United States Navy. 1  Unity: to symbolize camaraderie of the fraternity.  Service: to symbolize service to one's god, fellow man, and the Navy.
Galvani believed that the animal electricity came from the muscle in its pelvis. Volta, in opposition, reasoned that the animal electricity was a physical phenomenon caused by rubbing frog skin and not a metallic electricity.alvani actively investigated animal electricity until the end of his life. The Cisalpine Republic, a French client state founded in 1797 after the French occupation of Northern Italy, required every university professor to swear loyalty to the new authority.
He invented the Voltaic pile in 1799 and the results of which he reported in 1800 in a two-part letter to the President of the Royal Society. With this invention Volta proved that electricity could be generated chemically and debased the prevalent theory that electricity was generated solely by living beings.his is called Volta's Law of Capacitance, and it was for this work the unit of electrical potential has been named the volt. In 1779 he became a professor of experimental physics at the University of Pavia, a chair that he occupied for almost 40 years.