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Who discovered television?

Willoughby Smith discovered the photoconductivity in the element selenium in 1873. This led to Nipkow's invention of the scanning disk in 1884. He patented the first electromechanical television system that same year. Variations of Nipkow's spinning-disk, or image rasterizer, became exceedingly common and was used until 1939.\nJohn Logie Baird gave the first public demonstration of televised silhouettes in motion on March 25, 1925. He held it at Selfridge's Department Store in London.

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What recent charter has been alleged to limit the freedom of the press?

One specific cause for criticism was a Court of Justice of the European Union (CJEU) ruling that an individual's right to privacy can take priority over the media's right to publish information, even if that information is based on public records. The CJEU's ruling enabled a private individual to have an embarrassing public record deleted from Google Spain's search engines.Critics allege that loopholes in the EU Charter of Fundamental Rights are harmful to how the Internet functions and limit the protection of freedom of the press and media. Concern has also been voiced tha..

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Why did Australia become involved in World War I?

In 1914, Australian Prime Minister Andrew Fisher responded to the declaration of war with a pledge of full support for the allied war effort. In this, he was joined by the majority of Australia's parliament as well as the bulk of popular opinion in Australia. Internal political factors were thus driving Australia to war just as strongly as the internal factors in Germany or Russia.\nInternational factors that encouraged Australia's commitment to aid the British war effort revolved around Australia's place in the British Empire. Unlike subject countries, such as India or Burma, A..

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What are some history facts about the White House?

The White House also has 412 doors and 28 fireplaces along with three elevators and seven staircases. The White House has not always been called the White House and has been called the President's Palace and the Executive Mansion. President Roosevelt gave the White House its name in 1901.Another interesting fact is that each president is able to redecorate the Oval Office and the West Wing to fit his personal tastes. The Oval Office is the primary office for the president. Nathan C. Wyeth was the designer who created the Oval Office, which he modeled after the Blue Room that was inspired ..

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How do you obtain WWII military records?

Locate the search toolOn the National Archives World War II military records web page, scroll down to the link for searching World War II electronic records. The page links to the "Access to Archival Databases" page.Conduct a searchType a name into the search field and click Search. The results page lists the number of records and the number of broad categories, referred to as "series." Listings are in order by the number of records located in the archive. The database includes more than 8.7 million records, as of 2014. If a query locates more than 1,000 records, narrow the search in order to ..

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What is inside a pyramid?

Many of the items believed to be sealed into the Pyramids with the mummified bodies of the pharaohs were not present when the pyramids were explored by archaeologists, leading to the belief that the Pyramids were looted by thieves at some point in the past. The Pyramids have hieroglyphic paintings on some of the inside walls that tell the story of the king buried there and related religious tales. The shafts built into the walls are dual purpose. They provide ventilation to the inside of the pyramid, and they also provide an exit for the Pharaoh's soul or ka, the part of the spirit believ..

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What was the organized government of ancient India?

The primary motivation for tribes to settle down and form non-nomadic groups in ancient India was the development of agriculture, which allowed them to work the land instead of traveling and hunting. Once established, Indian settlements developed into republics and kingdoms that were headed by political leaders. Even in ancient times, there were some democratic elements in these governments. The raja was the supreme head of all branches. However, there were many different officials that helped the raja with bureaucratic advice. Final decisions were ultimately left to the raja.\nThere were also..

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What did James Watt invent?

The Newcomen steam engine, invented in 1712, was in wide use in mines as a water-pumping mechanism by the time James Watt encountered it in 1763. He noticed that the machine wasted much of the energy it generated, and he eventually devised a separate condensation chamber for the steam, greatly improving efficiency. This improved efficiency enabled areas without huge fuel deposits to take advantage of industrial power, which allowed the Industrial Revolution to spread throughout England. Watt continued to improve his machine, allowing it to perform rotary motion, which was well suited to factor..

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When did the Victorian Era start and end?

The Victorian era was a time in Britain that was characterized by peace, prosperity and self-confidence for the nation of Britain. In the culture of the time, there was a shift away from rationalism and a focus on romanticism and mysticism. In the fields of literature and history, this time period is characterized as Victorianism. The architecture during the era was primarily gothic revival architecture.

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What are the characteristics of Mesopotamian civilization?

The Sumerians found the Mesopotamian area before any other group of people and settled there. They built their cities along the Lower Mesopotamia rivers and created technological advances including wheels and plows as well as detailed irrigation systems, using canals and levees, that allowed crops to flourish. In fact, the name "Mesopotamia" means the "land between the rivers."One of the most important parts of the Mesopotamian civilization was its religion. The Sumerians believed in multiples gods and goddesses, and they built seven cities with a temple at each one dedicated to a different di..

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