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,
Trail of the Whispering Giants a small studio where he carves small wooden statues to raise money to create more "Whispering Giants". He travels around America to repair "Whispering Giants" he carved in the past that have not been kept up, as well as to carve new ones. The latest "Whispering Giant" carved was in Vincennes, Indiana, in 2009 out of Black Oak, but there are still eight more statues planned to be built. Trail of the Whispering Giants The Trail of the Whispering Giants is a collection of sculptures by Hungarian-born artist Peter Wolf Toth. The sculptures range in height from , and are