Monday, April 27, 2015

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Twenty-five years after the World Wide Web was created, the issue of surveillance has become the greatest controversy of its existence. With many concerned that governments and corporations can monitor people's every move, this programme meets hackers and scientists who are using technology to fight back, as well as the law enforcement officers who believe it's leading to opportunities for risk-free crimes.

Saturday, April 25, 2015

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The Hacker Wars brings you to the front lines of the battle over the fate of the Internet, freedom and privacy. The Hacker Wars talks about the anarchic troll provocateur Andrew Aurenheimer, prodigy hacker hero Jeremy Hammond, and incendiary watchdog journalist Barrett Brown three larger than life characters whose separate quests to expose the secrets of empire hurled them into a fateful collision course with shadowy corporations, the FBI, and ultimate betrayal by one of their own.

Featuring interviews with Pulitzer Prize winning journalist Glenn Greenwald, Pulitzer Prize winning journalist Chris Hedges, NSA whistleblower Thomas Drake, The Hacker Wars traces the steps that led from the Internet’s murkiest corners to the heavy shadow of censorship and a century’s worth of prison time.

Internationally acclaimed Diractor Vivien Lesnik Weisman melds her distinctively subversively bent style with the real life stories of the cyberpunk vanguards who blur the line between hacking and activism. Locked in a murky conflict against world governments, these so-called hacktivists are waging a life-or-death struggle for the freedom of public information and the defense of privacy under siege.


Sunday, April 19, 2015

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NanoTechnology

Nanotech is the manipulation of matter on an atomic, molecular scale. The earliest, widespread description of nanotech referred to the particular technological goal of precisely manipulating atoms and molecules for fabrication of macroscale products. A more generalized description of nanotechnology was subsequently established by the National Nanotechnology Initiative, which defines nanotechnology as the manipulation of matter with at least one dimension sized from 1 to 100 nanometers. The definition reflects the fact that quantum mechanical effects are important at this quantum-realm scale, and so this definition shifted from a particular technological goal to a research category inclusive of all types of research. It is therefore common to see the plural form "nanotechnologies" as well as "nanoscale technologies" to refer to the broad range of research and applications whose common trait is size. Because of the variety of potential applications governments have invested billions of dollars in nanotechnology research. Through its National Nanotechnology Initiative, the USA has invested 3.7 billion dollars. The European Union has invested 1.2 billion and Japan 750 million dollars.

Sunday, April 5, 2015

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Sun
Sun HD

The Sun is the star at the center of the Solar System. It is by far the most important source of energy for life on Earth. The Sun is a nearly perfect spherical ball of hot plasma, with internal convective motion that generates a magnetic field via a dynamo process. The diameter of the Sun is about 109 times that of Earth, and it has a mass about 330,000 times that of Earth, accounting for about 99.86% of the total mass of the Solar System. Chemically, about three quarters of the Sun's mass consists of hydrogen, whereas the rest is mostly helium, and much smaller quantities of heavier elements, including oxygen, carbon, neon and iron.

The Sun is a G-type main-sequence star (G2V) based on spectral class and it is informally designated as a yellow dwarf. It formed approximately 4.567 billion years ago from the gravitational collapse of matter within a region of a large molecular cloud. Most of this matter gathered in the center, whereas the rest flattened into an orbiting disk that became the Solar System. The central mass became increasingly hot and dense, eventually initiating thermonuclear fusion in its core. It is thought that almost all stars form by this process. The Sun is roughly middle age and has not changed dramatically for four billion years, and will remain fairly stable for four billion more. However, after hydrogen fusion in its core has stopped, the Sun will undergo severe changes and become a red giant. It is calculated that the Sun will become sufficiently large to engulf the current orbits of Mercury, Venus, and possibly Earth.


Saturday, April 4, 2015

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Vikings (from Old Norse víkingr) were Germanic Norse seafarers, speaking the Old Norse language, who raided and traded from their Scandinavian homelands across wide areas of northern and central Europe, as well as European Russia, during the late 8th to late 11th centuries. The term is also commonly extended in modern English and other vernaculars to the inhabitants of Viking home communities during what has become known as the Viking Age. This period of Norse military, mercantile and demographic expansion constitutes an important element in the early medieval history of Scandinavia, the British Isles, France, Kievan Rus' and Sicily.

Facilitated by advanced seafaring skills, and characterised by the longship, Viking activities at times also extended into the Mediterranean littoral, North Africa, the Middle East and Central Asia. Following extended phases of (primarily sea- or river-borne) exploration, expansion and settlement, Viking (Norse) communities and polities were established in diverse areas of north-western Europe, European Russia, the North Atlantic islands and as far as the north-eastern coast of North America. This period of expansion witnessed the wider dissemination of Norse culture, while simultaneously introducing strong foreign cultural influences into Scandinavia itself, with profound developmental implications in both directions.

Popular, modern conceptions of the Vikings the term frequently applied casually to their modern descendants and the inhabitants of modern Scandinavia often strongly differ from the complex picture that emerges from archaeology and historical sources. A romanticised picture of Vikings as noble savages began to emerge in the 18th century; this developed and became widely propagated during the 19th-century Viking revival. Received views of the Vikings as alternatively violent, piratical heathens or as intrepid adventurers owe much to conflicting varieties of the modern Viking myth that had taken shape by the early 20th century. Current popular representations of the Vikings are typically based on cultural clichés and stereotypes, complicating modern appreciation of the Viking legacy.