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
Canberra Museum and Gallery Canberra Museum and Gallery Canberra Museum and Gallery is an art gallery and museum in Canberra, the capital of Australia. It is located on London Circuit, in Civic in the centre of the city. The gallery was opened on 13 February 1998. The museum houses a permanent collection called "Reflecting Canberra" which opened on 14 February 2001. Among other things the exhibition includes works on display about the Canberra bushfires of 2003. There are several galleries located on two floors of the building, which have different exhibitions of paintings, photography or other works of art and the social history of