Se denomina equinoccio al momento del año en que el Sol está situado en el plano del ecuador terrestre. Ese día y para un observador en el ecuador terrestre, el Sol alcanza el cenit (el punto más alto en el cielo con relación al observador, que se encuentra justo sobre su cabeza (90°) ). El…
Count Lev Nikolayevich Tolstoy (Russian: Лев Никола́евич Толсто́й, pronounced [lʲef nʲɪkɐˈlaɪvʲɪt͡ɕ tɐlˈstoj] ( listen); 9 September [O.S. 28 August] 1828 – 20 November [O.S. 7 November] 1910), also known as Leo Tolstoy, was a Russian writer, philosopher and political thinker who primarily wrote novels and short stories. Tolstoy was a master ofrealistic fiction and is widely considered one of the greatest…
Last week Google revealed it has a secret drone delivery service in the works. Called Project Wing, it is the tech behemoth’s answer to another tech behemoth’s futuristic delivery service. Amazon’s Prime Air hopes to deliver 5-pound parcels, which make up more than 85 percent of its packages, via small unmanned aircraft flying 50 miles…
When Brian Robbins first told people he was going full time into the YouTube(GOOG) business, his colleagues in Hollywood were incredulous. “My agent, my lawyer, my dad—people thought I was crazy,” he says. For decades, Robbins had worked in the traditional entertainment industry, first as a teenage actor starring in the ABC sitcom Head of the Class, then…
Joseph Thomas Sheridan Le Fanu (/ˈlɛfənjuː/;[1][2] 28 August 1814 – 7 February 1873) was an Irish writer of Gothic tales and mystery novels. He was the leading ghost-story writer of the nineteenth century and was central to the development of the genre in the Victorian era. Three of his best known works are Uncle Silas, “Carmilla” and The House by the Churchyard. Sheridan Le Fanu…
Julio Cortázar, born Jules Florencio Cortázar[1] (American Spanish: [ˈxuljo korˈtasar] ( listen); August 26, 1914 – February 12, 1984), was an Argentine novelist, short story writer, and essayist. Known as one of the founders of the Latin American Boom, Cortázar influenced an entire generation of Spanish-speaking readers and writers in the Americas and Europe. He…
The California department of motor vehicles has introduced new road safety rules, requiring all vehicles on its roads to have a steering wheel and brake pedal – including Google’s fleet of driverless cars. Google will have to fit manual control devices to each of the cars in its test fleet of driverless vehicles before it…
Hans Christian Ørsted (Danish: [ˈhanˀs ˈkʰʁæsd̥jan ˈɶɐ̯sd̥ɛð]; often rendered Oersted in English; 14 August 1777 – 9 March 1851) was a Danish physicist and chemist who discovered that electric currents create magnetic fields, an important aspect of electromagnetism. He shaped post-Kantian philosophy and advances in science throughout the late 19th century.[3] In 1824, Ørsted founded…
Biography[edit] Anders Jonas Ångström was born in Medelpad. He moved to and was educated at Uppsala University, where in 1839 he became docent in physics. In 1842 he went to theStockholm Observatory to gain experience in practical astronomical work, and the following year he was appointed keeper of the Uppsala Astronomical Observatory. Becoming interested in terrestrial magnetism he made many observations of magnetic…
polgapema 