We often underestimate the role of science in everyday life. Yet, we consume products that were developed in the course of technological inventions and their further improvements. One of such scientific achievements is the TV. The offered video clip explains what an electromagnetism is and how it influences the work of the television.

Let’s have a closer look. The video focuses on applying scientific knowledge to everyday life. Moreover, it recalls already existing concepts in the area of electromagnetism. In addition, the relationship between those concepts is explained, too. Overall, the major focus of the video is largely based on the nature of science, technology and environment. As a result, the audience shall be able to evaluate the impact of science on human development by looking at the process of work of the television.

Over the course of history of the TV, physics has played an inevitable role. Particularly, the principles of electromagnetism are applied in the use of the television. Even though a lot of people are fond of watching TV these days, they even tend to criticize it, they cannot explain the principles how it works. To explain the process, one shall look at links between electricity and magnetism. The basis of the TV works is dependent on charged particles in magnetic fields.
The video also provides a historical context of the history of TV. For instance, the first person who contributed to the TV invention was a German chemist and physician Heinrich Geissler. Also, he was a famous instrument maker. He is well known and valued for using the combination and science in creating the machine that is currently called a TV.

He experimented largely with vacuum tubes. As a result of his experiments, one may see the great outcomes when chemicals produced a bright light. Later in the history, these tubes were called Geisler tubes. Another important figure is a chemist and physicist Sir Wiliam Crookes. He also worked and designed many tubes, some of which were called as Crookes’s tubes. Also, the worked on the systematic process of installing the physicist mechanism in the work of TV. No less important figure is J.J. Thompson who called the specific atoms as electrons.

The modern TV works in the way that the cathole tube Ray along with electromagnets scans the electron beams. Eventually, an image is created line by line after the process when beam hits different rays of various colors which red, green and blue. Such a process works because electrons in the electron beam are to be repulsed by the magnetic field that is generated by the electromagnets. Also, the force is exerted in the move of electrons. In fact, electromagnets vary electronically in order to scan the beam across the screen. Electromagnets are also used to steer the beam across the screen; An interesting fact mentioned in the clip is that electromagnets scan the beast so fast that they cover entire screen about 50-60 times every second.

Overall, the clips look at the very important concept of physics’ proliferation in the course of studying the work of TV. The video is certainly targeted to a larger group people, not necessarily students as there are plenty of people who do not understand how things work and what is in reality. From the physics’ perspective, it explains the historical context of the invention. Also, the hostess discusses the basis of electromagnetism. She explained the process of its correlation with other objects carefully. So, overall the conclusion may be formulated that there is no invention without any physics.