All that pressure keeps the metal in the inner core in solid form, despite its extremely high temperature. Recent scientific studies lead experts to believe that Earth's inner core is approximately 10,800Âº F â or about the same temperature as the surface of the Sun!
The New York City Police Department (NYPD) is the largest police department in the United States, with 32,284 officers as of 2009, and serving the combined populations of the Bronx, Brooklyn, Manhattan, Queens and Staten Island.
The Philadelphia Police Department (PPD) is the nation's fourth largest police department, with over 6600 sworn members and 800 civilian personnel. The PPD is the primary law enforcement agency responsible for serving Philadelphia County, extending over 140 square-miles in which approximately 1.5 million reside.