Whispering gallery to the walls, an effect that was discovered in the whispering gallery of St Paul's Cathedral in London. The extent to which the sound travels at St Paul's can also be judged by clapping in the gallery, which produces four echoes. Other historical examples are the Gol Gumbaz mausoleum in Bijapur and the Echo Wall of the Temple of Heaven in Beijing. A hemispherical enclosure will also guide whispering gallery waves. The waves carry the words so that others will be able to hear them from the opposite side of the gallery. The gallery may also be in the form
Whispering folds more quickly. A number of species of animals have been observed to whisper, including the cotton-top tamarin and the barbastelle bat. The reasons for animal whispering vary, and are not fully understood, but whispering among the tamarins appears to serve a social purpose, while the species of bats appears to whisper in order to evade detection by its particular prey, eared moths. Whispering Whispering is an unvoiced mode of phonation in which the vocal folds (vocal cords) are abducted so that they do not vibrate; air passes between the arytenoid cartilages to create audible turbulence during speech. Supralaryngeal articulation