Heinrich Hertz,Sirajan festival at kaithal,haryana

Celebrations on GOOGLE Today is the birth of German physisist whose invention ....benefit us How?

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Heinrich Hertz

Heinrich Rudolf Hertz with Google Doodle with amazing gif logo and (February 22, 1857 – January 1, 1894) was a German physicist who clarified and expanded the electromagnetic theory of light that had been put forth by Maxwell. He was the first to satisfactorily demonstrate the existence of electromagnetic waves by building an apparatus to produce and detect radio waves.

Hertz was born in Hamburg, Germany, into a prosperous and cultured Hanseatic family. His father, Gustav Ferdinand Hertz, was a writer and later a senator. His mother was the former Anna Elisabeth Pfefferkorn. His paternal grandfather David Wolff Hertz (1757-1822), fourth son of Benjamin Wolff Hertz, moved to Hamburg in 1793 where he made his living as a jeweller. He and his wife Schöne Hertz (1760-1834) were buried in the former Jewish cemetery in Ottensen. Their first son Wolff Hertz (1790-1859), was chairman of the Jewish community. His brother Hertz Hertz (1797-1862) was a respected businessman. He was married to Betty Oppenheim, the daughter of the banker Salomon Oppenheim, from Cologne. Hertz converted from Judaism to Christianity and took the name Heinrich David हेर्त्ज़.

While studying at the Gelehrtenschule des Johanneums in Hamburg, he showed an aptitude for sciences as well as languages, learning Arabic and Sanskrit. He studied sciences and engineering in the German cities of Dresden, Munich and Berlin, where he studied under Gustav R. Kirchhoff and Hermann von Helmholtz.

In 1880, Hertz obtained his PhD from the University of Berlin; and remained for post-doctoral study under Hermann von Helmholtz.
In 1883, Hertz took a post as a lecturer in theoretical physics at the University of Kiel. In 1885, Hertz became a full professor at the University of Karlsruhe where he discovered electromagnetic waves.

The most dramatic prediction of Maxwell’s theory of electromagnetism, published in 1865, was the existence of electromagnetic waves moving at the speed of light, and the conclusion that light itself was just such a wave. This challenged experimentalists to generate and detect electromagnetic radiation using some form of electrical apparatus.

In 1886–1889, Hertz published two articles on what was to become known as the field of contact mechanics. Hertz is well known for his contributions to the field of electrodynamics (see below); however, most papers that look into the fundamental nature of contact cite his two papers as a source for some important ideas. Joseph Valentin Boussinesq published some critically important observations on Hertz’s work, nevertheless establishing this work on contact mechanics to be of immense importance.

His work basically summarizes how two ax-symmetric objects placed in contact will behave under loading, he obtained results based upon the classical theory of elasticity and continuum mechanics. The most significant failure of his theory was the neglect of any nature of adhesion between the two solids, which proves to be important as the materials composing the solids start to assume high elasticity. It was natural to neglect adhesion in that age as there were no experimental methods of testing for it.

my daughter with historian .

my daughter ..sitting with audiences 

Sankrati ke mamley me shushk manye janey wale haryana kee smardh sanskratik virasat ko punah rekhankit karney ka beeda uthaya hai Kaithal(teetram) ke ek sanstha SAMBHAV ne.
sankatik sugbugahaton kee es aagman se manao sara kaithal sahar hee rangeen ho utha jab SAMABAHV ke karyakarto ka ek tola juloos ke shakal me pure baazar ke beech se nikla tab logo ne apnee vayst dincharya se tahar kar es julloos kee gatividhiyan me hissa liya.Es jullosh ka subharambh prasidh Itihaaskaar Prof Lal Bahadur Verma jee ne kiya unhonye logo ko batya kee es haryana ka sambandh us Razia Sultan se hai jo shorya kee misaal thee aur ye bhee bataaya kee es kaithal kee jameen me Hadapaa kee awsesh bhee miley hai aur bhee kaee naee etihasik raazo ka khulney ka silsilsa abhi dhama nahi hai baharhaal aur aagey unhone logo ko bataya ki SAMBHAV aaney waaley teen dino yani 24 se 26 kar kaithal ko geet-sangeet, vratchitro aur naatkon kee vishaal dunia se roobru karwayegee. aaj IPS Rajbeer Deshwaal karykram ka udghatan karengey aur shuruaat ek baal natak se hogee
SIRJAN SAANJHI VIRASAT KA
sanskritk mahotsav, Film utsav, pusatak mela, pradarshanai

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