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
The Whispering Shadow The Whispering Shadow The Whispering Shadow is a 1933 American pre-Code serial film directed by Colbert Clark and Albert Herman and starring Béla Lugosi in his first of five serial roles. Lugosi received $10,000, the highest known salary of his career, for this film. The serial was filmed in 12 days and was the last role for actor Karl Dane. The Shadow in "The Whispering Shadow" is the underworld mastermind. He has invented a device that allows him to kill by radio control. He, along with several other persons, seeks the Czar's jewels. The series is notable for the constant