Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Fizeau Foucault Apparatus


Related Topics

In the News (Tue 16 Sep 14)

  
  Léon Foucault - Wikipedia, the free encyclopedia
Foucault was the son of a publisher at Paris, where he was born on September 18, 1819.
Foucault invented in 1857 the polarizer which bears his name, and in the succeeding year devised a method of giving to the mirror of reflecting telescopes the shape of a spheroid or a paraboloid of revolution.
Foucault died of what was probably a rapidly-developing case of multiple sclerosis on February 11, 1868 at Paris and was buried in the Cimetière de Montmartre.
en.wikipedia.org /wiki/L%c3%a9on_Foucault   (668 words)

  
 Hippolyte Fizeau - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-08-19)
Armand Hippolyte Louis Fizeau (September 23, 1819-1896), French physicist, was born in Paris.
Foucault, he engaged in a series of investigations on the interference of light and heat.
In 1853 he described the employment of the capacitor (then called the condenser) as a means for increasing the efficiency of the induction coil.
marylandheights.us /project/wikipedia/index.php/Hippolyte_Fizeau   (228 words)

  
 Speed of light - The Encyclopedia
Fizeau's method was later refined by Marie Alfred Cornu (1872) and Joseph Perrotin (1900).
Foucault's estimate, published in 1862, was 298,000 kilometres per second.
Any slight change in speed of light along each arm of the interferometer (due to the fact that the apparatus was moving with the Earth through the proposed "aether") would change the amount of time that the beam spent in transit, which would then be observed as a change in the pattern of interference.
www.the-encyclopedia.com /description/Speed_of_light   (4275 words)

  
 Léon Foucault biography .ms   (Site not responding. Last check: 2007-08-19)
Jean Bernard Léon Foucault (September 18, 1819–February 11, 1868) was a French physicist best known for the invention of the Foucault pendulum, a device demonstrating the effect of the Earth's rotation.
In the 1840s, he contributed to the Comptes Rendus a description of an electromagnetic regulator for the electric arc lamp, and, in conjunction with Henri Victor Regnault, a paper on binocular vision.
In September of that year he discovered that the force required for the rotation of a copper disc becomes greater when it is made to rotate with its rim between the poles of a magnet, the disc at the same time becoming heated by the eddy current or "Foucault currents" induced in the metal.
leon-foucault.biography.ms   (469 words)

  
 Stransim   (Site not responding. Last check: 2007-08-19)
To illustrate a clasical experiment created by Jean Foucault to determine the speed of light in a laboratory setting.
Another French physicist in 1850 named Jean Foucault came up with a more accurate laboratory method that only required a stationary mirror to be on the order of 20 meters away from a light source.
A modification of Foucault's experiment was used by Michelson in 1924 to determine essentially the value that is used today for the speed of light through air.
www.stransim.com /speedc.htm   (381 words)

  
 Fizeau-Foucault apparatus . 1850
designed by the France French physics physicists Hippolyte Fizeau and Leon Foucault Léon Foucault for measuring the speed of light.
The apparatus involves light reflecting off a rotation rotating mirror, toward a stationary mirror some 20 miles 35 kilometers away.
Fizeau s value for light s speed was
www.uk.kunsimuna.net /Fizeau-Foucault_apparatus_UK_317133_lt   (422 words)

  
 All words on Marie Alfred Cornu
In particular he carried out a classical redetermination of the speed of light by A.
Fizeaus method (see Fizeau-Foucault Apparatus), introducing various improvements in the apparatus, which added greatly to the accuracy of the results.
This achievement won for him, in 1878, the prix Lacaze and membership of the Academy of Sciences in France, and the Rumford Medal of the Royal Society in England.
www.allwords.org /ma/marie-alfred-cornu.html   (567 words)

  
 1850 in science
Rudolf Clausius publishes his paper on the mechanical theory of heat, which first states the basic ideas of the second law of thermodynamics
Hippolyte Fizeau and E. Gounelle measure the speed of electricity
Léon Foucault demonstrates the greater speed of light in air than in water, and to establish that the speed of light in different media is inversely as the refractive indices of the media (see Fizeau-Foucault Apparatus)
www.brainyencyclopedia.com /encyclopedia/1/18/1850_in_science.html   (205 words)

  
 Business Software Review : Article 'Harold Furth'   (Site not responding. Last check: 2007-08-19)
Medicine December 19 - Clozapine is the first drug approved by the FDA for reducing the risk of suicidal behaviour.
Physics Claims regarding bubble fusion, in which a table-top apparatus is reported as producing small-scale fusion in a liquid undergoing acoustic cavitation are published.
Technology November 4, A Tactical high energy laser prototype shot down an incoming artillery shell.
www.business-software-review.org /DisplayArticle60235.html   (559 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.