Heinrich Rudolf Hertz Celebrated In The Google Doodle

German physicist whose experiments led to the wireless telegraph and radio, has his one hundred fifty-fifth birthday marked

Google's recent animated doodle celebrates the birthday 155 of Heinrich Hertz, German physicist whose experiments with electromagnetic waves led to the development of wireless telegraphy and radio.

Born in Hamburg, where he demonstrated a great ability to capture the dynamics of physics, even in infancy, later enrolled to study the issue in Berlin after a year at the University of Munich.

In Berlin, progress in research on electromagnetic phenomena was so rapid that in February 1880 received his doctorate - on electromagnetic induction in rotating spheres - at the age of 22 years.

After becoming a professor at the Technische Hochschule in Karlsruhe in 1885, Hertz turned his attention to open electrical circuits and electromagnetic induction, showed his students with a capacitor discharge through an open circuit.

During this way realized an unexpected phenomenon, the appearance of "side-sparks' in another loop by. In 1888, he was able to show that the electromagnetic emissions associated with these sparks behave like waves.

The finding, which actually clarified and expanded the electromagnetic theory of light that had been raised by the British physicist James Clerk Maxwell in 1884, was hailed as a confirmation that electromagnetic waves could be transmitted and received.

Hertz name later became the term used for radio and electrical frequencies, as in hertz (Hz), kilohertz (kHz) and megahertz (MHz).

He died in Bonn in 1894 after contracting Wegener's granulomatosis, a rare disease in which blood vessels become inflamed, and was buried in Ohlsdorf, Hamburg.

Google Doodle Celebrates 200th Anniversary Of Charles Dickens

Google Doodle today celebrates the 200th anniversary of British writer Charles Dikkensa.Doodle features characters from his literary works: Ebenezer Scrooge in Christmas Carol, and Pip from Great Expectations.

Unlike other Doodles which users news and search results, doodle brings advanced users to Google Books search results page, a list of popular novels of Dickens.

British author who created memorable images, like Oliver Twist and David Copperfield, has written several novels in his lifetime, including classics like A Tale of Two Cities, and Nicholas Nickleby. Most of his novels focus on the difficulties faced by poor and working class during the Industrial Revolution.

Dickens was born in Landport, Hampshire in England, February 7, 1812. At the young age of 12, Dickens was forced to work in a blacking factory, giving labels for the bottles of nail polish.

Google doodles are the decorative changes made to the logo of Google, to celebrate holidays, anniversaries, and the lives of famous artists and scientists. The first Google Doodle was created by Larry Page and Sergey Brin Google in 1998 on the occasion of the Burning Man Festival. Google currently has more than 1,000 doodles.

Google also has a special Web site that has more than 1,000 drawings, some of which include behind the scenes look at the creative process, and links to online versions.

Nicolas steno Google Doodle: Logo digs Deep To Celebrate The "Father Of Geology" Danish

To salute Nicolas Steno, Google has dug a particularly beautiful "Doodle".

Where the page is usually the company logo sits six letters "Google" are bright layers of rocks that mark not only time, but especially three hundred and seventy fourth anniversary of Steno it.

Danish scientist - who was born "Niels Stensen" January 11, 1638 - many consider the father of geology.

Significantly, today's green horse logo is displayed in the form of rock strata with embedded fossils - reflecting the twin ideas for which Steno is best known.

Layers illustrate the "principle of the original horizonality," Wall, which essentially says that rock layers form a flat - and just look different, if later violations reason for the deviation. And the fossils in the lower stratified rock to help illustrate the "law of superposition," The Wall, which - simply put - he says that the oldest rock layers are deposited sequentially on the bottom, if not otherwise disturbed.

For these studies, Steno also became known as the father of stratigraphy.

As a young man, Steno laid to study medicine, leaving his native Copenhagen in his early 20s for the University of Leiden in the Netherlands. He studied anatomy in Italy, where his research on shark teeth led him to question, among others, as one solid object can be found in another - for example, with fossils. His ideas of "solids in the organs" was published in 1669 in his seminal thesis Prodromus.

The wall, however, will soon leave science behind. Born in a family of Lutheran, he converted to Catholicism and was ordained a priest in 1675 and became titular bishop two years later.

Steno died in 1686 at the age of 48, in Schwerin, Germany.

At the end of 1980, Pope John Paul II beatified Steno - the first step toward canonization.

And today, Google visually beatifies Steno in plain view, as he can.