Grand Central Terminal, built in 1913 and the largest train station in the world, has a rich history and plenty of secrets. Explore the shady past, the hidden corners, and the many quirks of this New York City landmark. ... The Whispering Gallery...
manhattan.about.com/od/historyandlandmarks/a/secretgran... manhattan.about.com/od/historyandlandmarks/a/secretgrandcent.htm
This has been called the ``whispering gallery'' effect and has been used by many in the design of special rooms. In particular, St. Paul's Cathedral and one of the rooms at the United States Capitol were built with this in mind.
www.krellinst.org/uces/archive/resources/conics/node70.... www.krellinst.org/uces/archive/resources/conics/node70.html
St Paul's Cathedral - Wikipedia, the free encyclopedia
St Paul's Cathedral is the Anglican cathedral on Ludgate Hill, in the City of London, and the seat of the Bishop of London. The present building dates from the 17th century and is generally reckoned ...
en.wikipedia.org/wiki/St_Paul's_Cathedral
Built in 1934, the Mapparium may have become the vehicle for settling a 135-year-old dispute between two eminent British scientists about whispering galleries locations inside domes or specially designed rooms where a whisper can readily be heard a... ... "I'm very familiar with whispering galleries," Hartmann says,
www.usatoday.com/tech/science/2006-06-04-whispering-gal... www.usatoday.com/tech/science/2006-06-04-whispering-gallery_x.htm
How is this connected to whispering galleries? As you draw an ellipse, pretend that one person stands at the position of one pin, the other person stands at the position of the other pin, and the walls of the gallery are built in the shape of the ellipse.
www.madsci.org/posts/archives/may2000/959782388.Ph.r.ht... www.madsci.org/posts/archives/may2000/959782388.Ph.r.html
Built after the Great Fire of London St Paul's Cathedral is perhaps one of Sir Christopher Wren's finest buildings, completed in 1710 it took 40 years to complete. Wren's masterpiece is the soaring dome, which offers outstanding panoramic views across London, and is home to the famous Whispering Gallery.
www.londonvisions.com/nz_stpaulscathedral.htm
This is implied by other evidence of subtle Maya manipulation of architectural acoustics suggesting that they were masterful practitioners of acoustical arts who created whispering galleries and other acoustical wonders.) ... They are always considered undesirable elements in a "built environment". The Mayan echo,
www.acoustics.org/press/136th/lubman.htm
Berkeley CA (SPX) Jan 27, 2009 - The principle behind whispering galleries - where words spoken softly beneath a domed ceiling or in a vault can be clearly heard on the opposite side of the chamber - has been used to achieve what could prove to be a significant breakthrough in the miniaturization of lasers. ... In this study,
www.spacemart.com/reports/Plasmonic_Whispering_Gallery_... www.spacemart.com/reports/Plasmonic_Whispering_Gallery_Microcavity_Paves_The_Way_To_Future_Nanolasers_999.html
Students who built whispering galleries used the equation of an ellipse and algebraically located the focus points in order to show the reflective qualities of their model.
www.essentialschools.org/cs/resources/view/ces_res/324
When was the Capitol built?; The Capitol was begun in 1793 and has been "completed" several ... Is there a "whispering gallery" in the Capitol? The half-dome shape of National Statuary Hall produces an acoustical effect whereby, in some spots, a speaker many yards away may be heard more clearly than one closer at hand.
www.aoc.gov/aoc/frequently-asked-questions.cfm