Whispering-gallery wave known as surface plasmons has been demonstrated in the form of whispering-gallery waves, and likewise for exciton-polaritons in semiconductors. Galleries simultaneously containing both acoustic and optical whispering-gallery waves have also been made, exhibiting very strong mode coupling and coherent effects. Hybrid solid-fluid-optical whispering-gallery structures have been observed as well. 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,
South London Gallery South London Gallery The South London Gallery, founded 1891, is a public-funded gallery of contemporary art in Camberwell, London. Until 1992, it was known as the South London Art Gallery, and nowadays the acronym SLG is often used. Margot Heller became its director in 2001. The gallery traces its origins back to the South London Working Men's College at 91 Blackfriars Road in 1868, whose Principal was the biologist Thomas Henry Huxley, the grandfather of Aldous Huxley; the Manager was William Rossiter. In 1878, the College relocated to 143 Kennington Lane, where a Free Library was also opened. In 1879