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 Jack a national tour to celebrate the 25th anniversary of "Whispering Jack", including the album being performed in its entirety in track order. Following the initial success of the album, a series of concerts was performed around Australia in 1987. One such performance was recorded at the Melbourne Sports and Entertainment Centre, and broadcast on Network Ten. A full version of the concert was also released to video in the same year. Disc One (CD) Disc Two ("Whispering Jack Live in Concert" DVD) (NOTE: The DVD used the edited version originally broadcast on television in 1987.) Whispering Jack Whispering Jack is