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 Mystery of the Whispering Mummy The Mystery of the Whispering Mummy The Mystery of the Whispering Mummy is the third book in The Three Investigators series by Robert Arthur, Jr.. It was originally published in the United States by Random House in 1965. Library of Congress catalog number 99192344 . The boys receive a letter from Alfred Hitchcock requesting they visit a friend of his, Professor Yarborough, who has a mummy along with other artifacts in his house. The mummy has been whispering in a strange language, but only when Yarborough is alone in the room. They also receive a letter from a Mrs Banfry