-
The Camera
The First Camera was made in 1816 by Nicéphore Niépce, it uses a small camera and a piece of paper coated with silver chloride which darkens when exposed to light, but the image is not permanent and deteriorates over time. This camera was the first to produce an actual photograph. The camera is a camera obscura which occurs when an image of a scene at the other side of the screen is projected through a small hole in the screen and forms an inverted image on a surface opposite to the opening. -
First Flexible Photograph
George Eastman created the first flexible photographic film and allows multiple images to be stored onto a plastic coated strip. These images can later be viewed and the invention in considered the spark of video. This societal need of recording information and displaying it, was met by using this. -
First Motion Picture Camera
Thomas Edison made the kinetograph better. A kinetograph is a motion picture camera. The societal need for this was to capture moments much more easierly. It uses the flexible photographic film to achive this but adds upon it, to achieve the societal need better. -
Cathode Ray Tube
Cathode rays were experimented with by Eugen Goldstein. Cathode rays are the light emitted when an electric current was forced through a vacuum tube. K.F. Braun invented the cathode-ray tube. The development of the tube is used to produce television images, ten years after it was invented. The societal need again to capture and project moments is further achived by this invention. The discovery of this ray is a step into achievement. It leads to a greater invention to achieve the societal need. -
Black and White Television
The first broadcast was made by Vladamir Kosma Zworykin, but television sets sold to the American public was in 1939 and the World's Fair. This is the major step forward into television as this is the first television. It uses the cathode-ray tubes to display the light coming on. This is another mechanical device that helps us achieve the societal need of producing and caputuring moments. -
Cable Television
Cable television allowed people to achieve images from people with using a cable. It was introduced in Pennsylvania in 1948. It provided people that lived in small communities without access to a television station. It allowed people to recieve information better which is another societal need that was achieved by television and over time got better. -
Colour Television
The first colour television broadcast was in 1954 in the United States. This was another progress into the societal need of producing and capturing moments/images, which was in motion too. It was a major advancement in the development of television. This is another invention that allowed more information to come easier, people could see more information and recieve more information in general which is the societal need that progressed television to help achieve more. -
Wireless Remote
This wireless remote allowed people to change the channels of television much more without having to stand up. This remote also allowed people to turn the TV on and off. This wireless remote is also anothe byproduct of the television which allowed electromagnetic waves to interact with objects without using cables and wiring. This is also another societal need of using remote controls without wiring and going "wireless". -
Video Recorder
This is another invention that helped the societal need of capturing images and moments and helping portraying that image to others. The videorecorder along with the videotape was introduced in 1956. Video recorders allowed movies and videos to be recorded directly into videotapes. Videotapes were mainly used for scientific purposes or medically. Later on became home videos and personal videos. It helped achieve the societal need of recording information and later displaying the information. -
Advertisement
Advertising became worldwide and helped the producers and manufacturers advertise their products which increased sales. The commercials really boomed later in 1977 and rose to 20% of all US advertising. Advertising allows us to achieve the societal need of giving out more information and us recieving it much more easily. Advertisements are basically the byproduct of television as basically television allowed this type of exchange of information to be easily achieved. -
Satellite Transmissions
Over time machines have become better equip to meeting the same societal need because for example television stations used to transmit the signal via stations on earth where they send the signal in every direction. But over time we invented satellite transmissions to help transmit these signals to every corner of the Earth. The societal need of transmitting information had been upgraded. In theory this need has been met differently because this time it is in space instead of on Earth. -
DVD
The DVD is or digital disc provided much far superior picture and sound quality. This medium can store any type of digital data and used for software and computer files or video programs that are used by the DVD players. The societal need of recording information once again was upgraded and further advanced by the DVD from VCR. This DVD uses a metal disc that spins instead of using tape which records the data onto that not the round disc. -
HDTV
HDTV was the transition from analog television broadcasting to digital TV. Another societal need had been improved on, which was the societal need of capturing and displaying detailed moments and images. It upgraded from analog which was using monochrome signals and in a analog television broadcast, the brightness, colors and sound were represented by rapid variations of the amplitude, frequency or phase of signal. To now which uses digital data and video compression through cables and such. -
Flat Screen, Plasma and LCD
Flat Screens were an upgrade from very rounded and not flat screens that were very bulky and heavy. Flat screen TV's were usually very thin, and contained high quality images. Plasma and LCD were thinner and lighter than cathode ray tubes. Plasma TV's use small cells containing electrically charged ionized gasses that are plasmas. It improves upon the societal need of better image quality and capturing moments in detail from those bulky TV's to lightweight sleek designs. -
3DTV
3DTV is the latest most modern innovation for television which allows the societal need of having an image or moment be in 3D rather than on a 2D plane where the image is trapped onto that screen. 3DTV's achieve this societal need by using LCD glasses that lets you view video in 3D. Although 3D isn't fully mastered with people wanting to view 3D without the glasses, it is still a step into the right direction. Some places already have 3D image formation without glasses. -
Simple Machines: Screws
This is basically the only simple machine inside a TV because this is what holds all of the parts together and prevents it from falling apart. All the other simple machines like inclined planes, wedges, wheel and axle, pulleys are all not in here because it doesn't use these simple machines.
