The History of Color Television

The earliest mention of color television was in a 1904 German patent for  a color television system. In 1925, Russian inventor Vladimir K.  Zworykin  also filed a patent disclosure for an all-electronic color television system. While both of these designs were not successful, they were the first documented proposals for color television. Sometime between 1946 and 1950, the research staff of RCA Laboratories invented  the worlds first electronic,  color television system.  A successful color television system based on a system designed by RCA began commercial broadcasting on December 17, 1953. RCA vs. CBS But before RCAs success, CBS researchers led by Peter Goldmark had invented a mechanical color television system based on 1928 designs of  John Logie Baird. The FCC authorized CBSs color television technology as the national standard in October of 1950.  However, the system at the time was bulky, the picture quality was terrible, and the technology was not compatible with earlier black-and-white sets. CBS  began  color broadcasting on five east coast stations in June of 1951. However, RCA responded by suing to stop the public broadcasting of CBS-based systems. Making matters worse for CBS was the fact that there were already 10.5 million black-and-white televisions (half RCA sets) that had been sold to the public and very few color sets. Color television production was also halted during the Korean War. With the many challenges, the CBS system failed. Those factors provided RCA with the time to design a better color television, which they based on Alfred Schroeders 1947 patent application for a technology called shadow mask CRT. Their system passed FCC approval in late 1953, and sales of RCA color televisions began in 1954. A Brief Timeline of Color Television Early color telecasts could be preserved only on the black-and-white  kinescope  process introduced in 1947.In 1956, NBC began using color film to time-delay and preserve some of its live color telecasts.  A company named Ampex  made a color videotape recorder in 1958, and  NBC used it to tape  An Evening With Fred Astaire,  the oldest surviving network color videotape.In 1958, President Dwight D. Eisenhower visited the NBC station in Washington, D.C. and gave a speech discussing the new technologys merits. His speech was recorded in color, and a copy of this videotape was given to the Library of Congress.NBC  made the first coast-to-coast color broadcast when it telecast the  Tournament of Roses Parade  on January 1, 1954.The  premiere of Walt Disneys Wonderful World of Color in  September  1961 created a turning point that persuaded consumers to go out and purchase color televisions.  Television broadcasting  stations and networks in most parts of the world upgraded from black-and-white TVs to color transmission in the 1960s and 1970s.By 1979, even the last of these had converted to color,  and by the early 1980s, black-and-white sets were mostly small portable sets  or those used as video monitor screens in lower-cost consumer equipment. By the late 1980s, even these areas switched to color sets.

Classification Of Poisons And Its Effects On The Nervous...

AMITY INSTITUTE OF FORENSIC SCIENCES AMITY UNIVERSITY UTTAR PRADESH Name: - Sanchari Dasgupta Enrolment No.: - A5905914014 Programme: - B.Sc (Hons) Forensic science Batch: - 2014-17 Title of summer assignment: - Classification of poisons Goal for the first week: - Introduction of the topic Goal for the second week: - Write in brief about corrosive poisons and non-metallic irritant poison Goal for the third week: - Write in brief about metallic irritant poisons Goal for the fourth week: - Write about poisons having vegetable and animal origin Goal for the fifth week: - Write about poisons acting on the nervous system FIRST WEEK’S WORK POISONS INTRODUCTION Poisons are substances those are most likely to cause harm to a person. It can also be defined as a substance which has the potent of causing illness or death of a living organism when introduced to the body or absorbed. 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Leadership, Organization And Administration - 1529 Words

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Baroque vs. Modern Pop free essay sample

January 2013 Baroque Vs. Modern Pop The Western music known today has its roots in the musical practices found in Europe and the Middle East over twenty centuries ago. These musical practices, in turn, have their roots in ancient Greek and Roman practices which are detailed in musical and philosophical treatises of the time. Greek civilization, with its political structures, its architectural and musical attainments, and its great achievements in philosophy and poetry, has influenced European culture and in turn American culture (Hansen, 2012). I have taken two excerpts of music, Marin Marais (1656-1728) Pieces a Une Viole du Premier Livre (1686) and a Pop group name R. E. M and there last concert at the BBC. I have chosen R. E. M because their music is based off of the Baroque era with a modern day flare. After listen to both pieces, I was touched by the Baroque era music. I enjoyed both concerts, but I think I enjoyed the Pop concert more than the Baroque concert. We will write a custom essay sample on Baroque vs. Modern Pop or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The Pop concert of course had more rhythm and the difference in instruments made a difference to me. The drums where the biggest difference, had my foot tapping and my head bobbing, and the Baroque concert had me in a state of relaxation and peace of mind. The music differs from one another through the type of instruments used. The Baroque music used piano and chello unlike the modern day music using acoustic instruments and percussions. They even used electric guitars. I think the biggest difference was the singing; I stated previously that the drums were the biggest difference but the singing was definitely the biggest difference. The Baroque had no singing in the entire concert. The music was similar in the instruments told a story even though the Baroque music did not have words it still told a story, you could almost imagine or maybe even visualize the story being told and at your own words to the music. The Pop music of course had words but even then if you remove the words from the music it had the same effect as the Baroque music. The roles of concerts in the Baroque era I think played a role in society that we lack today. Back then in those times people went to concerts to escape the everyday life and learn something new, it was like a story being told or news being passed. Musicians were highly revered not role models like the musicians of today. Pop concerts today we attend as a form of entertainment, we go to see our favorite band or singer. We don’t attend for the appreciation of music like they did in the Baroque days. Today we have a different kind of appreciation of music, it’s whoever is hot at the time, whatever song is the big hit at the moment. There are certain types of people that attend these types of concerts. The Baroque attendees, I would say a more intellectual type a person that loves the art of music, a person that really appreciate music. The Pop attendees, I would say are more care free and just want to have fun and not have to worry about anything but, having fun, a person that just wants to feel good and carefree for a moment. Our experiences with music are influenced by many factors. The biggest factor is the internet. We have access to things that we didn’t have back in the days before the internet. We can easily move music around and get the sound out to the masses. In the Baroque era it may have taken a year for one composer to get his music heard by the masses. In conclusion, the Baroque era and the Pop era are so different but yet so similar, I guess it would come down to ones own opinion of each type of music. I would think that any music lover would appreciate both eras of music. Works Cited Bethanie Hansen, Cathy Silverman, and David Whitehouse, Music Appreciation, 2012. Website (http://www. youtube. com/watch? v=poCRFiaoCLA) Website (http://www. youtube. com/watch? v=uaYVa1r0nlA)