Google Celebrates 155 Years Heinrich Rudolf Hertz

Heinrich Rudolf Hertz

San Fancisco: Google's biggest internet company, on Wednesday (22/2) is, change the look of the homepage search engine into a special Doodle marking 155th anniversary of the German physicist, Heinrich Rudolf Hertz. Hertz is a physicist who researches on electromagnetic waves play a major role in carrying the development of wireless telegraphy and radio.

Born in Hamburg, Germany, where he showed great skill in digesting the dynamics of physics even in childhood. He then enrolled to study physics at Berlin, who moved a year later to the University of Munich.

In Berlin, Hertz experienced rapid progress in the investigation of electromagnetic phenomena in February 1880 he received his PhD - the theme of research in the field of rotating electromagnetic induction - at the age of 22 years.

After becoming a professor at Karlsruhe Technische Hochschule in 1885, Hertz turned his attention to open the electrical circuit and electromagnetic induction to show off his students by using a condenser discharging through an open loop.

In the course of doing this, he saw an unexpected phenomenon, the emergence of "the spark" in the other loop is placed nearby. Until 1888, he was finally able to show that the electromagnetic emissions associated with the sparks could behave like waves.

The findings - which then effectively clarified and expanded the electromagnetic theory of light by the British physicist James Clerk Maxwell in 1884, is regarded as a confirmation that the electromagnetic waves can be sent and received.

Hertz's name became the term used for radio and electrical frequency, as in hertz (Hz), kilohertz (kHz) and megahertz (MHz). He died at Bonn in 1894 after contracting Wegener's granulomatosis, a rare disorder in which blood vessels become inflamed. He was buried in Ohlsdorf, Hamburg. (JAY / ANS / The Guardian)