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Christos Tsigiridis
Christos Tsigiridis ( el, Χρίστος Τσιγγιρίδης, pronounced ; 1877 - 1947) was a Greek electrical engineer and technological pioneer of his era. He was the first who imported the technology of sound reinforcement systems to Greece and led the installation of the first sound system in the Greek Parliament. He is mainly known for setting up the first radio station in Greece and the wider Balkans in the city of Thessaloniki. Birth and first years Christos Tsigiridis was born in 1877 in Filibe in the Ottoman Empire (today Plovdiv, Bulgaria) by Greek parents. The once wealthy and aristocratic family of Georgios Tsigiridis had a hard time, which worsened after his death. At the start of the 20th century they were forced to leave and move to Stuttgart in Germany. There, they founded a small cigarette production unit which brought enough money to allow Christos to study. Finally, he was able to study in the electrical mechanisms faculty of Stuttgart. A few years later, he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filibe
Plovdiv ( bg, Пловдив, ), is the second-largest city in Bulgaria, standing on the banks of the Maritsa river in the historical region of Thrace. It has a population of 346,893 and 675,000 in the greater metropolitan area. Plovdiv is the cultural capital of Bulgaria and was the European Capital of Culture in 2019. It is an important economic, transport, cultural, and educational center. Plovdiv joined the UNESCO Global Network of Learning Cities in 2016. Plovdiv is situated in a fertile region of south-central Bulgaria on the two banks of the Maritsa River. The city has historically developed on seven syenite hills, some of which are high. Because of these hills, Plovdiv is often referred to in Bulgaria as "The City of the Seven Hills". There is evidence of habitation in the area dating back to the 6th millennium BCE, when the first Neolithic settlements were established. The city was subsequently a local Thracian settlement, later being conquered and ruled also by Persia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larissa
Larissa (; el, Λάρισα, , ) is the capital and largest city of the Thessaly region in Greece. It is the fifth-most populous city in Greece with a population of 144,651 according to the 2011 census. It is also capital of the Larissa regional unit. It is a principal agricultural centre and a national transport hub, linked by road and rail with the port of Volos, the cities of Thessaloniki and Athens. The municipality of Larissa has 162,591 inhabitants, while the regional unit of Larissa reached a population of 284,325 (). Legend has it that Achilles was born here. Hippocrates, the "Father of Medicine", died here. Today, Larissa is an important commercial, transportation, educational, agricultural and industrial centre of Greece. Geography There are a number of highways including E75 and the main railway from Athens to Thessaloniki (Salonika) crossing through Thessaly. The region is directly linked to the rest of Europe through the International Airport of Central Greece ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Markos Vafiadis
Markos Vafeiadis (also spelled as Vafiadis and Vafiades; el, Μάρκος Βαφειάδης; Tosya, – Athens, ) was a leading figure of the Communist Party of Greece (KKE) during the Greek Resistance and the Greek Civil War. Pre-war life Vafiedis was born in Tosya, Ottoman Empire in 1906 although some sources claim he was born in Şenkaya, Erzurum Province, Erzurum in present-day Turkey. At the age of 17, after the Population exchange between Greece and Turkey of 1923, Vafeiadis went to Thessaloniki and Kavala as a refugee. From 1928, he worked in Thessaloniki as a member of the Young Communist League of Greece (OKNE). In 1932, he was imprisoned and sent to internal exile in Greece, internal exile for his political action. After his release in October 1933, he worked as party instructor in many areas of Greece. At the beginning of Ioannis Metaxas' dictatorship (the "4th of August Regime") he was exiled again to the island of Agios Efstratios, Ai Stratis, but managed to escape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greco-Italian War
The Greco-Italian War (Greek language, Greek: Ελληνοϊταλικός Πόλεμος, ''Ellinoïtalikós Pólemos''), also called the Italo-Greek War, Italian Campaign in Greece, and the War of '40 in Greece, took place between the kingdoms of Fascist Italy (1922–1943), Italy and Kingdom of Greece, Greece from 28 October 1940 to 23 April 1941. This local war began the Balkans Campaign (World War II), Balkans Campaign of World War II between the Axis powers and the Allies of World War II, Allies and eventually turned into the Battle of Greece with Commonwealth of Nations, British and Nazi Germany, German involvement. On 10 June 1940, Italy declared war on France and the United Kingdom. By September 1940, the Italians had Italian invasion of France, invaded France, Italian conquest of British Somaliland, British Somaliland and Italian invasion of Egypt, Egypt. This was followed by a hostile press campaign in Italy against Greece, accused of being a British ally. A number of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bari
Bari ( , ; nap, label= Barese, Bare ; lat, Barium) is the capital city of the Metropolitan City of Bari and of the Apulia region, on the Adriatic Sea, southern Italy. It is the second most important economic centre of mainland Southern Italy after Naples. It is a port and university city, as well as the city of Saint Nicholas. The city itself has a population of 315,284 inhabitants, over , while the urban area has 750,000 inhabitants. The metropolitan area has 1.3 million inhabitants. Bari is made up of four different urban sections. To the north is the closely built old town on the peninsula between two modern harbours, with the Basilica of Saint Nicholas, the Cathedral of San Sabino (1035–1171) and the Hohenstaufen Castle built for Frederick II, which is now also a major nightlife district. To the south is the Murat quarter (erected by Joachim Murat), the modern heart of the city, which is laid out on a rectangular grid-plan with a promenade on the sea and the majo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Studio
A studio is an artist or worker's workroom. This can be for the purpose of acting, architecture, painting, pottery (ceramics), sculpture, origami, woodworking, scrapbooking, photography, graphic design, filmmaking, animation, industrial design, radio or television production broadcasting or the making of music. The term is also used for the workroom of dancers, often specified to dance studio. The word ''studio'' is derived from the , from , from ''studere'', meaning to study or zeal. The French term for studio, ''atelier'', in addition to designating an artist's studio is used to characterize the studio of a fashion designer. ''Studio'' is also a metonym for the group of people who work within a particular studio. :uz:Studiya Art studio The studio of any artist, especially from the 15th to the 19th centuries, characterized all the assistants, thus the designation of paintings as "from the workshop of..." or "studio of..." An art studio is sometimes called an atelier, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Power
Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Standard prefixes apply to watts as with other SI units: thousands, millions and billions of watts are called kilowatts, megawatts and gigawatts respectively. A common misconception is that electric power is bought and sold, but actually electrical energy is bought and sold. For example, electricity is sold to consumers in kilowatt-hours (kilowatts multiplied by hours), because energy is power multiplied by time. Electric power is usually produced by electric generators, but can also be supplied by sources such as electric batteries. It is usually supplied to businesses and homes (as domestic mains electricity) by the electric power industry through an electrical grid. Electric power can be delivered over long distances by transmission lines and used for applications such as motion, light or heat with high efficiency. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watt
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre per second against a constant opposing force of one newton, the rate at which work is done is one watt. : \mathrm In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). : ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmitter
In electronics and telecommunications, a radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna (radio), antenna. The transmitter itself generates a radio frequency alternating current, which is applied to the Antenna (radio), antenna. When excited by this alternating current, the antenna radiates radio waves. Transmitters are necessary component parts of all electronic devices that communicate by radio communication, radio, such as radio broadcasting, radio and television broadcasting stations, cell phones, walkie-talkies, Wireless LAN, wireless computer networks, Bluetooth enabled devices, garage door openers, two-way radios in aircraft, ships, spacecraft, radar sets and navigational beacons. The term ''transmitter'' is usually limited to equipment that generates radio waves for Communication engineering, communication purposes; or radiolocation, such as radar and navigational transmitters. Generators of radio waves for heatin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens & Halske
Siemens & Halske AG (or Siemens-Halske) was a German electrical engineering company that later became part of Siemens. It was founded on 12 October 1847 as ''Telegraphen-Bauanstalt von Siemens & Halske'' by Werner von Siemens and Johann Georg Halske. The company, located in Berlin-Kreuzberg, specialised in manufacturing electrical telegraphs according to Charles Wheatstone's patent of 1837. In 1848, the company constructed one of the first European telegraph lines from Berlin to Frankfurt am Main. Siemens & Halske was not alone in the realm of electrical engineering. In 1887, Emil Rathenau had established ''Allgemeine Elektrizitäts-Gesellschaft'' (AEG), which became a long-time rival. In 1881, Siemens & Halske built the Gross-Lichterfelde Tramway, the world's first electric streetcar line, in the southwestern Lichterfelde suburb of Berlin, followed by the Mödling and Hinterbrühl Tram near Vienna, the first electrical interurban tram in Austria-Hungary. 1882 saw the openi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
