In its early stages of development, LIVESTREAM television employed a combination of optical, mechanical and electronic technologies to capture, transmit and display a visual image. By the late 1920s, however, those employing only optical and electronic technologies were being explored. All modern television systems relied on the latter, although the knowledge gained from the work on electromechanical systems was crucial in the development of fully electronic television.
The first images transmitted electrically were sent by early mechanical fax machines, including the pantelegraph, developed in the late nineteenth century. The concept of electrically powered transmission of television images in motion was first sketched in 1878 as the telephonoscope, shortly after the invention of the telephone. At the time, it was imagined by early science fiction authors, that someday that light could be transmitted over copper wires, as sounds were.
The idea of using scanning to transmit images was put to actual practical use in 1881 in the pantelegraph, through the use of a pendulum-based scanning mechanism. From this period forward, scanning in one form or another has been used in nearly every image transmission technology to date, including television. This is the concept of "rasterization", the process of converting a visual image into a stream of electrical pulses.
In 1884, Paul Gottlieb Nipkow, a 23-year-old university student in Germany, patented the first electromechanical television system which employed a scanning disk, a spinning disk with a series of holes spiraling toward the center, for rasterization. The holes were spaced at equal angular intervals such that, in a single rotation, the disk would allow light to pass through each hole and onto a light-sensitive selenium sensor which produced the electrical pulses. As an image was focused on the rotating disk, each hole captured a horizontal "slice" of the whole image.
Nipkow's design would not be practical until advances in amplifier tube technology became available. Later designs would use a rotating mirror-drum scanner to capture the image and a cathode ray tube (CRT) as a display device, but moving images were still not possible, due to the poor sensitivity of the selenium sensors. In 1907, Russian scientist Boris Rosing became the first inventor to use a CRT in the receiver of an experimental television system. He used mirror-drum scanning to transmit simple geometric shapes to the CRT.
Using a Nipkow disk, Scottish inventor John Logie Baird succeeded in demonstrating the transmission of moving silhouette images in London in 1925, and of moving, monochromatic images in 1926. Baird's scanning disk produced an image of 30 lines resolution, just enough to discern a human face, from a double spiral of Photographic lenses. This demonstration by Baird is generally agreed to be the world's first true demonstration of television, albeit a mechanical form of television no longer in use. Remarkably, in 1927, Baird also invented the world's first video recording system, "Phonovision": by modulating the output signal of his TV camera down to the audio range, he was able to capture the signal on a 10-inch wax audio disc using conventional audio recording technology. A handful of Baird's 'Phonovision' recordings survive and these were finally decoded and rendered into viewable images in the 1990s using modern digital signal-processing technology.
In 1926, Hungarian engineer Kálmán Tihanyi designed a television system utilizing fully electronic scanning and display elements, and employing the principle of "charge storage" within the scanning (or "camera") tube.
On 25 December 1926, Kenjiro Takayanagi demonstrated a television system with a 40-line resolution that employed a CRT display at Hamamatsu Industrial High School in Japan. This was the first working example of a fully electronic television receiver. Takayanagi did not apply for a patent. By 1927, Russian inventor Léon Theremin developed a mirror-drum-based television system which used interlacing to achieve an image resolution of 100 lines.
In 1927, Philo Farnsworth made the world's first working television system with electronic scanning of both the pickup and display devices, which he first demonstrated to the press on 1 September 1928.
WRGB claims to be the world's oldest television station, tracing its roots to an experimental station founded on 13 January 1928, broadcasting from the General Electric factory in Schenectady, NY, under the call letters W2XB. It was popularly known as "WGY Television" after its sister radio station. Later in 1928, General Electric started a second facility, this one in New York City, which had the call letters W2XBS, and which today is known as WNBC. The two stations were experimental in nature and had no regular programming, as receivers were operated by engineers within the company. The image of a Felix the Cat doll, rotating on a turntable, was broadcast for 2 hours every day for several years, as new technology was being tested by the engineers.At the Berlin Radio Show in August 1931, Manfred von Ardenne gave the world's first public demonstration of a television system using a cathode ray tube for both transmission and reception. The world's first electronically scanned television service then started in Berlin in 1935. In August 1936, the Olympic Games in Berlin were carried by cable to television stations in Berlin and Leipzig where the public could view the games live. In 1935, the German firm of Fernseh A.G. and the United States firm Farnsworth Television owned by Philo Farnsworth signed an agreement to exchange their television patents and technology to speed development of television transmitters and stations in their respective countries.On 2 November 1936, the BBC began transmitting the world's first public regular high-definition service from the Victorian Alexandra Palace in north London. It therefore claims to be the birthplace of television broadcasting as we know it today. In 1936, Kálmán Tihanyi described the principle of plasma display, the first flat panel display system. Mexican inventor Guillermo González Camarena also played an important role in early television. His experiments with television (known as telectroescopía at first) began in 1931 and led to a patent for the "trichromatic field sequential system" color television in 1940. Although television became more familiar in the United States with the general public at the 1939 World's Fair, the outbreak of World War II prevented it from being manufactured on a large scale until after the end of the war. True regular commercial television network programming did not begin in the U.S. until 1948. During that year, legendary conductor Arturo Toscanini made his first of ten TV appearances conducting the NBC Symphony Orchestra, and Texaco Star Theater, starring comedian Milton Berle, became television's first gigantic hit show. Since the 1950s, television has been the main medium for molding public opinion.
Amateur television (ham TV or ATV) was developed for non-commercial experimentation, pleasure and public service events by amateur radio operators. Ham TV stations were on the air in many cities before commercial TV stations came on the air. In 2012, it was reported that television revenue was growing faster than film for major media companies. LIVESTREAM ONLINE TV.
REAL VAMPIRES THROUGHOUT HISTORY:
Vampires have been seen and documented throughout history. The history of vampires goes further back in time than most people realize. The chaldeans, who lived near the Euphrates river in the southwestern part of Asia more than five hundred years before the time of Christ , feared vampire or creatures similar to vampires enough so that they created charms to protect themselves from being attacked by such creatures. The Assyrians and the Babylonians feared a creature similar to a vampire known as an Ekimmu. These creatures known as Ekimmus were believed by the Assyrians to roam the planet searching for food although it was not always a persons blood but rather a persons' vitality or that persons' energy force. It was believed that if such a creature would enter someone's house that person along with his or her family would slowly weaken, get sick and probably die. In the countries of Syria and Palestine references were made to such blood sucking monsters on ancient carved tablets. In Ireland the people believed in these creatures, which they affectionately came to call "red blood suckers" . Due to their belief in these mythical creatures they began the practice of placing stones on these vampires graves to kep them from escaping.This then became standard practice and is still used to this day in the form of a tombstone. Tombstones were used to control ghosts and other spirits instead of their original use in controlling vampires.
Due to the fact that vampires seemed to be so commonplace around the globe, there was a large variety of vampires that differed in shape, behavior and method of becoming a vampire. All of these factors varied from region to region. In the country of Bulgaria a vampire had only one nostril. This Bulgarian vampire would rise out of it's grave nine days after death in the form of a shower of sparks and remained in this shape for a period of forty days. After the completion of these forty days the shower of sparks would regain it's human form. Once human-like the vampire goes from playing childish tricks, which it did in it's "spark" form , to more serious matters , such as the attacking of humans and drinking of their blood. Vampires are well known for their craving for blood but in many countries vampires were not limited to just that substance as part of their diet, but would also consume foods that humans ate such as eggs and rice. That, however, does not mean that their yearn for blood was any weaker than before. Most vampires would attack their victims and suck the blood from puncture wounds made in the neck (The Russian vampire would suck the blood directly from the victims heart).
Sometimes the vampire would gorge itself until it had drained the victim completely while other times it would take just enough to satisfy that night's thirst and come back the following night and take a bit more. The method of drinking from the same victim night after night would cause the victim to get weaker and weaker . Due to the fact that the victim was indeed attacked by a vampire, that would mean that upon the victims death they too would become "undead." (. Vampires p22)
Certain cultures around the globe also had systems to recognize vampires. In some cultures vampires were distinguished due to the color of their hair. In most Christian countries vampires could be recognized because they had red hair like Judas Iscariot, the man who betrayed Christ in the bible, was said to have had red hair. Eye color was another tell-tale sign used to identify vampires. In Greece ,where most people have dark colored eyes, vampires were said to have blue eyes, Rumania they were said to have had gray eyes, and in Ireland they had black eyes.
Vampires have been around for centuries , in some cases they have been recognized and feared by cultures that were around thousands of years before the time of Christ, such as the Babylonians and the Assyrians. Throughout the ages many medical explanations that could explain the vampire phenomena have been overlooked. The first reason was the lack of education that many people, because schooling was not an important part of these societies. Their lack of medical knowledge about diseases, some of which are quite rare and hard to explain even to this day was a large factor in the spread of vampire lore. Along with the fact that very uneducated people have always had a tendency of being overly superstitious also contributed to the vampire legend. In 1985 Dr. David Dolphin, Ph.D., a professor of chemistry at the University of British Columbia presented his theory that blood-drinking vampires were not vampires at all but rather victims of a disease known as Porphyria.(Dresser, Norine. American Vampires p171) " Porphyria is an incurable genetic disease which affects at least 50,000 patients in the U.S. that causes sudden symptoms of severe pain , respiratory problems, Skin lesions and sometimes death."(Dresser, Norine. American vampires p171) "Porphyria may well have been responsible for many a vampire tale - especially since the disease is hereditary" (Garden, Nancy. Vampires p98) A person that is affected by Porphyria can seem very scary to the average person since the disease causes the persons gums to tighten. That causes their teeth to be seen much more prominently as well as causing their teeth and nails to gain a fluorescent glow.These traits could then go on to explain the fact that many vampire stories described the vampires as giving off a greenish glow. Victims of this disease are likely to be deformed in other ways as well but usually in the facial area.
Because of the skin lesions suffered by victims of Porphyria they are usually very sensitive to light which would cause them to not venture out of their homes until night.
This aspect of the lifestyles of people suffering Porphyria would fit in very well with vampire lore. Garlic was used as a repellent of vampires butmore likely victims of the disease known as Porphyria would have a strange chemical reaction with garlic which would cause the person to have a severe porphyria attack. This would then make that person very reluctant to come close to the garlic since it contains large amounts of Dialkyl Disulfide which destroys Heme in the persons blood ( Heme is the pigmented component of Hemoglobin and related substances found in largest amounts in the bone marrow, red blood cells, and the liver ). The further destruction of Heme in a Porphyria victim would set off a severe allergic reaction. Since Porphyria is also a genetic disease several siblings in a family usually carry the defective gene. While the siblings may share the same defective gene sometimes only one of the siblings will display any of the symptoms . It is known that in many vampire tales , vampires return to attack their sibling or other family members.This along with the fact that Porphyria could be triggered in a person who is genetically predisposed to have the disease by a sudden loss of large amounts of blood. When these factor are taken into consideration, one could say that when a vampire came back to attack a sibling and when the sibling also began to show some vampire characteristics , it could be assumed that the Porphyria gene in the second sibling could have been triggered by the loss of blood which was suffered during the attack by the first sibling or the "vampire." This would make it seem as though the vampire attack had caused the second sibling to turn into a vampire as well.
Plague was another factor which could explain the growth of the vampire legend. In the Stephen King book Salem's Lot which is the story of a town that is infested by Vampires and due to the infestation of vampires causes the town to become a ghost town.
In the book it says" But a little over a year ago something began to happen in Jerusalem's Lot that was not unusual, people began to drop out of sight." (King, Stephen. Salem's Lot p15) This phenomenon which is found in Stephen King's book was not at all uncommon in ancient times especially in remote places. Villagers in these remote places would have believed that blood was a Vital substance that gave life. Since they did not know much about disease their lack of knowledge of diseases and their lack of medical practitioners in these remote areas would give the perfect opportunity for their superstitious beliefs to come into play. If suddenly much of the town began to fall ill at the same time and they all displayed similar symptoms such as weight loss , weakness and paleness they would think that these people must have been drained of the vital substance, blood. Searching for an explanation without any medical knowledge the one thing that would make sense to them would be that a vampire was on the loose while the fact that the town could be in the middle of an epidemic such as the black plague during the Dark Ages. In Stephen King's book a town would just seem to disappear for no reason and the only explanation would be vampires. In the Dark ages the situation would be very similar to that in the Stephen King book except that in Stephen King's book the vampires are real.
Tuberculosis or consumption as it was often called is a disease that although was not highly contagious was a very common disease up until the mid-1800's . The beginning stages of this disease do not contain very recognizable symptoms.By the time the symptoms showed up (such as weight loss and fatigue which is where the name consumption came from) the disease was already in it's later stages. Tuberculosis would have been very difficult to diagnose by people with no medical knowledge especially when the most serious symptoms of the disease such as coughing and spitting up blood were not present. Tuberculosis was often openly confused with vampirism as was the case when in the mid- 1800's the corpses of many victims of Tuberculosis were treated as vampires and buried face down or by being dug up and burned when members of their families suddenly came down with Tuberculosis.(Garden,Nancy. Vampires p69)
The mental aspect of vampires has always seemed to be that of someone who was not in their right mind. In Anne Rice's book The Vampire Lestat at one point one of the vampires in the book just looks at the other one and simply says "You're the mad one." ( Rice, Anne. The Vampire Lestat p73) not realizing that madness plays a large part towards explaining the vampire legend as well as other mental conditions.