Television and How It Works essays

Television and How It Works essays The only reason we can view the effects of the television is due to how our brain interprets the signal it emits. Broken down, the images on a television are made up of tiny little particles of light. These are called pixels. Each pixel is a tiny part of an image. As a TV screen gets larger, more pixels are necessary to make the picture sharp enough for us to view it. Think of a computer screen just as you would a television in that it works just like a television. For example, the computer screen that I am working on is listed as 1024 by 728 pixels. This is the number of pixels horizontal by the number of pixels vertical. All of these little beams of light are sorted next to each other so that the picture can be seen. One can view these pixels in their full effect when they view pictures on the computer (in a program such as Microsoft Paint). You can zoom in on the picture so far that all you can see is the blown up version of the little pixels. The other reason our brain is the catalyst to our ability of viewing television is that it can fuse still pictures to make video. We literally, without knowing it, break down video into these stills. Our brains take these stills, and when enough of them are put together in a rapid rate, we can make them seem as though they are one fluid image. It takes roughly 15 or so images (per second) to make the images come out as a smoothly flowing video. If there are less than that, the video will come out choppy. Many can associate with that from online streaming video captures, and or web cam feeds. Televisions use a cathode ray tube (CRT) to display its images. This is the most common way TV images are displayed. The CRT is made up of parts comparable to a battery. It has an anode (positive terminal) and a cathode (negative terminal). Much like a normal light bulb u can find in fixtures around your house, the cathode is the part that heats up. When this cathod...