Lord Rayleigh

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P.n.t. Well - One of the best experts on this subject based on the ideXlab platform.

  • Lord Rayleigh: John William Strutt, third Baron Rayleigh
    IEEE transactions on ultrasonics ferroelectrics and frequency control, 2007
    Co-Authors: P.n.t. Well
    Abstract:

    John William Strutt, first son of the second Baron Rayleigh, was born on November 12, 1842. He was a sickly boy, so his schooling was sporadic. Nevertheless, he graduated first in his year at Cambridge and subsequently was a Fellow of Trinity College until his marriage in 1871. His father died in 1873, and he succeeded to the title third Baron Rayleigh. He converted the stable block of his country house, Terling Place, into a laboratory. In 1879, he moved back to Cambridge as Professor of Experimental Physics, but he returned to Terling in 1884. He published The Theory of Sound in 1877/1878 and, in his lifetime, 466 scientific articles. He received the 1904 Nobel Prize in Physics for the discovery of argon and made numerous seminal contributions to scientific progress. In the field of acoustics, he studied scattering, the diffraction limit, surface waves, resonance phenomena, reciprocity, streaming, radiation force, cavitation, relaxation, and binaural perception. He received many honors, was President of the Royal Society, one of the founding members of the Order of Merit, and Chancellor of Cambridge University. He also was interested in psychical research. Lord Rayleigh died on June 30, 1919

Barry R. Masters - One of the best experts on this subject based on the ideXlab platform.

Amy Watkins - One of the best experts on this subject based on the ideXlab platform.

  • Whispering-gallery-mode microbubble resonators: fabrication and characterization
    The Boolean: Snapshots of Doctoral Research at University College Cork, 2011
    Co-Authors: Amy Watkins
    Abstract:

    Whispering is not an effective means of communication when a considerable distance separates the two conversationalists. In spite of this, a soft whisper can travel a very long way in the right environment - a whispering gallery. In 1910, the scientist Sir John William Strutt (Lord Rayleigh) witnessed this acoustic phenomenon in the Dome of St. Paul’s Cathedral in London (see Fig. 1). Here, two people on opposite sides of the dome, up to 40 metres apart, can talk to each other by simply whispering against the curved wall. Inevitably, Lord Rayleigh - a true mathematician at heart - solved what he described as “The problem of the Whispering Gallery”. He realised that, as the whisper travels along the curved surface, it loses very little energy and so can be heard after a great distance. Conversely, when the speaker talks at normal volume, the message possesses enough energy to complete ...

Michael W. Davidson - One of the best experts on this subject based on the ideXlab platform.

  • Pioneers in Optics: Marvin Lee Minsky and Lord Rayleigh (John William Strutt)
    Microscopy Today, 2012
    Co-Authors: Michael W. Davidson
    Abstract:

    On August 9, 1927, in New York City, Marvin Lee Minsky was born to Dr. Henry Minsky, an eye surgeon, and Fannie Resier, an active participant in the Zionist movement. At an early age he developed an interest in science, a characteristic that was encouraged at the private schools he attended as a child. Nevertheless, after high school he joined the United States Navy. Following his two years of service, Minsky entered Harvard University, where he pursued a variety of subjects, including psychology, physics, neurophysiology, and mathematics. After graduation in 1950, he transferred to Princeton University to pursue his doctorate in mathematics, and during his first year there he constructed the first neural network simulator. Subsequent to receiving his PhD in 1954, he revisited Harvard, but this time as part of the renowned group of scholars known as the Society of Fellows.Lord Rayleigh was a British physicist and mathematician who worked in many disciplines including electromagnetics, physical optics, and sound wave theory. The criteria he defined still act as the limits of resolution of a diffraction-limited optical instrument. Rayleigh wrote over 446 scientific papers but is perhaps best known for his discovery of the inert gas argon, which earned him a Nobel Prize.

Alexander Movchan - One of the best experts on this subject based on the ideXlab platform.

  • Source-neutral Green'functions for periodic problems in electrostatics, and their equivalents in electromagnetism
    Proceedings of the Royal Society of London. Series A: Mathematical Physical and Engineering Sciences, 1999
    Co-Authors: Christopher G. Poulton, Ross C. Mcphedran, Lindsay C. Botten, Alexander Movchan
    Abstract:

    We consider source–neutral problems for periodic problems in electrostatics. These may be used to derive an identity due to Lord Rayleigh entirely within the context of the unit cell, and without use of reasoning based on contributions from charges at an outer boundary of the periodic system, or employing conditionally convergent lattice sums. We also consider the equivalent of source–free Green9functions for the Helmholtz equation, which are Green9functions with their specular parts removed. We show that, as the wavenumber tends to zero, the non–specular dynamic Green9functions tend with no divergences to the source–neutral electrostatic Green9function.