Whispering-gallery wave Whispering-gallery wave Whispering-gallery waves, or whispering-gallery modes, are a type of wave that can travel around a concave surface. Originally discovered for sound waves in the whispering gallery of St Paul’s Cathedral, they can exist for light and for other waves, with important applications in nondestructive testing, lasing, cooling and sensing, as well as in astronomy. Whispering-gallery waves were first explained for the case of St Paul's Cathedral circa 1878 by Lord Rayleigh, who revised a previous misconception that whispers could be heard across the dome but not at any intermediate position. He explained the phenomenon of travelling whispers with
Whispering Pines, Gila County, Arizona of it land. Whispering Pines, Gila County, Arizona Whispering Pines is a census-designated place (CDP) in Gila County, Arizona, United States. It is one of two locations in Arizona with this name, the other being a populated place in Greenlee County. The population was 148 at the 2010 United States Census. Whispering Pines is located in northern Gila County in the upper valley of the East Verde River, between Washington Park to the north and Beaver Valley to the south. It is north of Payson. According to the United States Census Bureau, the Whispering Pines CDP has a total area