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
Gallery 30 DC government relations consultants Lois Starkey and Bill Gilmartin. The new owners shifted Gallery 30's primary focus from books back to local and regional art and further diversified the gallery's collection of artisan crafts. Throughout the 1990s, Starkey and Gilmartin also concentrated on deepening the business's roots in the Gettysburg community by regularly hosting book signings, art contests and other family-friendly events. In August 2007, Gallery 30 and its historic building were acquired by Pennsylvania native Linda Atiyeh. Atiyeh enlarged Gallery 30's selection of Pennsylvania-made artisan crafts, added handcrafted jewelry by both local and international artists and refined Gallery 30's