“A whispering gallery is a gallery beneath a dome or vault or enclosed in a circular or elliptical area in which whispers can be heard clearly in other parts of the building."
St Paul’s Cathedral is the Anglican Cathedral on Ludgate Hill, in the City of London and dates from the 17th century. The Whispering Gallery’s name comes from the fact that a whisper whispered by a person facing the wall on one side, can clearly be heard by a listener with an ear held at any other point to the wall around the gallery. This doesn’t work for normal voiced speech but only for whispered speech.
“The prevailing theory behind why whispering galleries work (first proposed in 1871 by British astronomer George Airy to explain St. Paul’s cathedral) is that sound originating at one point along the circumference of an enclosed sphere is reflected to another point along the circumference opposite the source.”
According to experts, a whisper directed tangentially to the surface is clearly heard on the other side of the gallery because the whisperer’s voice follows the curve of the domed ceiling. This phenomenon is especially assisted by the fact that the walls are dome-shaped because this means that instead of the upward-directed components of the whispered sounds being lost above, it rather tends to be reflected downwards and is conserved. The late Lord Rayleigh (1904) explained that the acoustical effects observed are due to the curvilinear propagation of sound and the waves which “proceed from a source placed close to the wall of the gallery clinging to its surface and creeping tangentially along it”. He stated that the effects were not due to the sound being a reflection of the dome overhead but rather to a waveguide effect.
The rea...
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...bs/108042a0.html [19 July 2009].
Calvert, J.B. (2005). Ellipse: Miscellaneous Ellipses. [Online]. Available: http://mysite.du.edu/~jcalvert/math/ellipse.htm [20 July 2009]
A E Bate 1938 Proc. Phys. Soc. 50 293-297. [Online Preview]. Available: http://www.iop.org/EJ/abstract/0959-5309/50/2/315 [20 July 2009]
Kelf, T. TimKelf.com: Whispering Gallery Modes. [Online]. Available: http://www.timkelf.com/ResearchWGM.html [20 July 2009]
A E Bate 1938 Proc. Phys. Soc. 50 293-297. [Online Preview]. Available: http://www.iop.org/EJ/abstract/0959-5309/50/2/315 [20 July 2009]
Berkeley Lab. (2009). Berkeley Lab: Plasmonic Whispering Gallery Microcavity Paves the Way to Future Nanolasers. [Online]. Available: http://newscenter.lbl.gov/press-releases/2009/01/22/plasmonic-whispering-gallery-microcavity-paves-the-way-to-future-nanolasers/ [19 July 2009].
With the Pantheon being built over 1700 years ago, it’s amazing that architects are still using features and techniques from this work of architecture in modern creations. The use of this type of classical architecture will continue to be used in works for public space due to its remarkable exterior appearance and it’s long lasting structural durability. When both Jesse hall and the Pantheon are compared it is possible to see their similarities from the types of domes that top each, their external facades, and their interior plan. While they share many similarities, the differences that Bell and Binder used in their creation make this work of architecture unique to many other public spaces.
After walking inside and trying to first experience, the church, and all its beauty and ornateness, I began examining the floor plan and elevations of the cathedral. Grace Cathedral was build in a gothic style, which it represents in its architecture inside and out. There were three huge rose windows. One at the very top of the main entrance and one on either end of the transept. There wer...
Over the last millennium, a striking Cathedral devoted to St. Paul has been a precious jewel for the city of London. It sits at the top of Ludgate Hill, the highest point in the City of London. The present St Paul 's Cathedral, London, is an Anglican cathedral, the seat of the Bishop of London and the mother church of the Diocese of London. Regularly as the Cathedral is at the centre of many nation-wide events, innovations have been examined, and drastic new thoughts have found expression under the iconic dome. Bearing in mind all those occasions, it is certain that they would have left behind some physical evidence as well as reverberations in the imperceptible retention of the Cathedral itself.
As I walked deeper into the gallery, I found myself walking through what looked like a church with pillars of stone, stained glass windows, ...
down behind many layers of glass in a sort of leather conservatory we started towards town?
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Mark Rothko is recognized as one of the greatest artists of the twentieth century and during his lifetime was touted as a leading figure in postwar American painting. He is one of the outstanding figures of Abstract Expressionism and one of the creators of Color Field Painting. As a result of his contribution of great talent and the ability to deliver exceptional works on canvas one of his final projects, the Rothko Chapel offered to him by Houston philanthropists John and Dominique de Menil, would ultimately anchor his name in the art world and in history. Without any one of the three, the man, the work on canvas, or the dream, the Rothko Chapel would never have been able to exist for the conceptualization of the artist, the creations on canvas and the architectural dynamics are what make the Rothko Chapel a product of brilliance.
Johnson, J. S., & Newport, E. L. (1991). Critical period effects on universal properties of
When I entered through the main gallery entrance, the first thing that I noticed was this colorful glass sculpture in the middle of the room. I was in awe at how beautiful the sculpture was and the way how the light was reflected on the sculpture really emphasized the
already it’s clear that it is late at night and a man is weak and tired trying to ease his sorrow by reading old books of “forgotten lore” (DiYanni 1173). Then the poem goes on to tell that there is a tapping at his chamber door. When he opens the door he is surprised to find, “Darkness there and nothing more” (1173). He whispered into the darkness “Lenore,” hoping that his lost love had returned, but all that was heard was, “an echo [that] murmured back the word, ‘Lenore!’”(1173). Angered and perplexed, he turns back into his chamber, suddenly there is a loud tapping at the window lattice.
When I was a child I used to be frightened of entering such a place for it seemed so imposing and somewhat dangerous, especially when music was being played. One day, in order to keep a promise I had made, I saw myself forced to enter. It took me quite a while to get the courage to pass through the old oak door, but the moment I stepped in, I realized just how enchanting and breathtaking this building could be. Its fantastic architecture and exquisite frescoes reflect perfectly the unity between this earth and the unseen kingdom of angels in such a manner that one cannot say where one ends and the other begins. The way in which the church was built is also the vivid testimony of a medieval period. Although it is a place that can sometimes be cold and ask for respect it is where prayers are answered and magic is done. An overwhelming feeling of inner harmony takes over you once you enter and God seems much closer. Darkness and light are welded perfectly together creating Redemption’s house. The tower allows you to see the entire town from the smallest river to the biggest building site, offering you its mightiness.
2) Fundamentals of Physics Extended: Fifth Edition. David Hanley, Robert Resnick, Jearl Walker. Published by John Wiley & Sons, Inc, New York, Chichester, Brisbane, Toronto, Singapore. 1997.
Kirkpatrick, Larry D. and Gerald F. Wheeler. Physics: A World View, 4th ed. Orlando, FL. Harcourt College Publishers: 2001. p- 365-71
Throughout the past century, investigations of quantum and particle physics phenomena have proven to show the most significant concepts and ideas in the physical and sub-atomic world. However, the discoveries yet to be made are endless. One of the most fascinating concepts in the sub-atomic universe is the idea of spintronics. Spintronics is the quantum study of the independent angular momentum (not to be confused with the orbital angular momentum of the electron) of a particle, typically that of an electron (Introduction). An electron is a fundamental particle, with a negative charge, and is independently studied in the process of spintronic devices. The spin angular momentum of electrons is ±½ћ. Devices that use the properties
The problem of small oscillations can be solved through the study of molecular vibrations which further, can be introduced by considering the elementary dynamical principles. The solution for the problem of small oscillations can be found out classically, as it is much easier to find its solution in classical mechanics than that in quantum mechanics. One of the most powerful tools to simplify the treatment of molecular vibrations is by use of symmetry coordinates. Symmetry coordinates are the linear combination of internal coordinates and will be discussed later in detail in this chapter.