Meanwhile, Scottish engineer John Baird gave the world's first demonstration of true television before 50 scientists in central London in 1927. In 1923, Zworykin was employed at the Pittsburgh-based manufacturing company Westinghouse when he applied for his first television patent, for the “Iconoscope,” which used cathode ray tubes to transmit images. Russian-born engineer Vladimir Zworykin had worked as Rosing’s assistant before both of them emigrated following the Russian Revolution. Swinton’s system, which placed cathode ray tubes inside the camera that sent a picture, as well as inside the receiver, was essentially the earliest all-electronic television system. In the early 1900s, both Russian physicist Boris Rosing and Scottish engineer Alan Archibald Campbell-Swinton worked independently to improve on Nipkow’s system by replacing the spinning discs with cathode ray tubes, a technology developed earlier by German physicist Karl Braun. TV Goes Electronic With Cathode Ray Tubes He called it the electric telescope, but it was essentially an early form of mechanical television. In 1884, Paul Nipkow came up with a system of sending images through wires via spinning discs. But it was a German researcher who took the next important step toward developing the technology that made television possible. Another important step forward came in 1876 in the form of Alexander Graham Bell’s telephone, which allowed the human voice to travel through wires over long distances.īoth Bell and Thomas Edison speculated about the possibility of telephone-like devices that could transmit images as well as sounds. Morse developed the telegraph, the system of sending messages (translated into beeping sounds) along wires. Television’s origins can be traced to the 1830s and ‘40s, when Samuel F.B. The idea was floating around long before the technology existed to make it happen, and many scientists and engineers made contributions that built on each other to eventually produce what we know as TV today. No single inventor deserves credit for the television. Early TV Technology: Mechanical Spinning Discs Amazingly, however, all these technological changes were essentially just improvements on a basic system that has worked since the late 1930s-with roots reaching even further back than that. In the 21st century, viewers are just as likely to watch shows on cell phones, laptops and tablets as on a TV set. Decade after decade, TV technology has steadily advanced: Color arrived in the 1960s, followed by cable in the ‘70s, VCRs in the ‘80s and high-definition in the late ‘90s. The way people watch television has changed dramatically since the medium first burst onto the scene in the 1940s and ‘50s and forever transformed American life.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |