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General Topics Articles
Page 24 of 35
How does an FM radio set work?
The FM receiver is the whole unit which takes the modulated signal as input and outputs the original audio signal. Radio amateurs are the initial radio receivers. They had got drawbacks such as poor sensitivity and selectivity.Selectivity is the selection of a particular signal while rejecting the others. Sensitivity is the capacity of detecting RF signal and demodulating it, while at the lowest power level. Both Selectivity and Sensitivity should be high for an FM receiver. To overcome these drawbacks of the ordinary receiver, the superheterodyne receiver was invented. This FM receiver consists of 5 main stages.RF Tuner SectionThe modulated ...
Read MoreHow did Sony start and become one of the world leaders in the tech industry?
Sony Corporation is one of Japan's biggest multinational corporations, headquartered in Minato, Tokyo of Japan. It was founded by Akio Morita and Masaru Ibuka on 7th May 1946. It was during the wake of the World War-II. Sony’s first branded product was TR-55 Transistor radio that was launched in 1955, whereas Sony was made to be its official name since January 1958.It was Not-So-EasyEarlier, vacuum tubes were used, whereas, after the invention of transistors, the circuits became shorter and eventually the size of the equipment used got reduced. When TR-55 Transistor radio was launched which was made using a transistor, ...
Read MoreWhy is social reputation necessary for the scientific community people?
Social reputation is a common desire for every human being. Having lived in a society, any person acquires some reputation depending on the behavior, etiquettes, profession, maintenance, nature etc. from the people around him. When we refer to a group of people who belong to a certain community, they usually form societies and communities and plan activities as we witness in social media daily, to increase their social reputation. Such activities often involve social causes.Scientific Community PeoplePeople who took science as their profession, especially Scientists, researchers, scholars etc. can be referred to as Scientific Community people. Unlike normal people, they ...
Read MoreWhat are Guerrilla Marketing Strategies?
The concept of Guerrilla marketing was created by Jay Conrad Levinson. Traditional marketing involves advertising methods such as advertising on television, radio, print, and mail. Online marketing or Digital marketing is the type of advertising which we see today on websites, YouTube videos, blogs, etc. Whereas, Guerrilla Marketing is an inexpensive method that focuses more on reach rather than frequency. This style of marketing is effective for small businesses to advertise their product and services. One needs to have imagination, energy and time for this kind of advertising.Give an ImpactThis kind of advertising engages the customers with the product and ...
Read MoreWhat are the modes of operation in a helical antenna?
A helical antenna is another type of wire antenna, which is widely used for a higher range of broadband VHF and UHF applications. The frequency range of operation of the helical antenna is around 30MHz to 3GHz.Helical antenna or helix antenna is the antenna in which the conducting wire is wound in a helical shape and connected to the ground plate with a feeder line. It is the simplest antenna which provides circularly polarized waves and used in extra-terrestrial communications in which satellite relays etc., are involved.It consists of a helix of thick copper wire or tubing wound in the ...
Read MoreWho are the three musketeers in the historical novel written by Alexandre Dumas?
Alexandre Dumas was the French author who wrote “The Three Musketeers” historical novel in 1844. This novel got popular because of the adventures, plot and the then political scenario consisting of the issues between Monarchists and Republicans that were discussed. The war between France and England during the time of King Louis XIV was also mentioned in this novel.The Three MusketeersThe three musketeers are actually four, with the protagonist who is the young man named d’Artagnan. He befriends three musketeers named Athos, Porthos and Aramis before joining the elite corps in Paris. This is a well-written novel involving loyalty, betrayal, ...
Read MoreWhat is a Yagi-uda antenna? What are its design specifications?
Yagi-Uda antenna is the most commonly used type of antenna for TV reception over the last few decades. It is the most popular and easy-to-use type of antenna with better performance, which is famous for its high gain and directivity. The frequency range in which the Yagi-Uda antennas operate is around 30 MHz to 3 GHz which belong to the VHF and UHF bands.Construction of Yagi-Uda AntennaA Yagi-Uda antenna was seen on top of almost every house during the 90's when we had only Doordarshan Channels. The parasitic elements and the dipole together form this Yagi-Uda antenna. It is seen ...
Read MoreWhy is Sanskrit known as the mother of all languages?
Sanskrit is the Holy and Divine language of India, written in Devanagari script which is also known for its clarity and beauty. Sanskrit belongs to the Indo-European languages family. The meaning of the word "Sanskrit" is refined, decorated and produced in perfect form. This is the oldest language ever attested on Earth.Covers A Larger PrecinctThough not for all the languages, Sanskrit is surely the mother of many languages, especially languages spoken in Northern India. Even many words from Dravidian languages are derived from Sanskrit. Almost all of the ancient kinds of literature such as the Vedas, Upanishads, Epics, Shastras, Puranas ...
Read MoreWhat are the codes of Engineering ethics?
The engineering societies such as AAES, ABET, NSPE, IEEE, and AICTE have framed these codes of ethics which are helpful to engineers to strengthen the moral issues on their work. The codes of ethics play at least eight important roles such as the following.Serving and Protecting the PublicEngineers are in a responsible position where trust and trustworthiness, both are essential. A code of ethics functions as a commitment to the profession as a whole that engineers will serve the public health, safety, and welfare. All the remaining ones contribute to this function in some or other way.GuidanceCodes are written in ...
Read MoreWhat are the types of Utilitarian ethics followed in Engineering?
The Utilitarian ethics was proposed by John Stuart. According to this theory, the happiness or pleasure of the greatest number of people in society is considered as the greatest good. According to this philosophy, an action is morally right if its consequences lead to the happiness of people and wrong if they lead to their unhappiness.An example of this can be the removal of the reservation system in education and government jobs, which can really benefit the talent. But this could endanger the minority rights.Following are two main types of Utilitarianism.Act UtilitarianismRule Utilitarianism.Act UtilitarianismThe Act utilitarianism focuses on each situation ...
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