Main akaash vani hoon
Today, even though we have 10 types of things for communication, when you want, you can see anything on mobile, but there was a time when people did not have suitable means of communication. Then the invention of radio had done the work of bringing a revolution in the world of science, through this invention, we could listen to the conversations of people living far away in our home.
What is radio
Radio is a device that uses electromagnetic waves present around us to transmit distant conversations to our ears.
If radio is understood in simple language, it is a technology in which signals are given or communicated with each other using Radio Waves.
Radio Waves are a type of electromagnetic waves whose frequency ranges from 30 Hz to 300 GHz.
History of radio
The invention of radio is considered one of the most important inventions of the world. The credit for today’s modern radio system cannot be given to any single scientist. Some British scientists such as Oliver Heaviside and James Clerk Maxwell pioneered the invention of the radio. But he could not explain the electromagnetic waves accurately.
The electromagnetic wave was successfully discovered by Heinrich Rudolf Hertz in the 1880s. A book was made on top of this, in which information about electromagnetic waves was given in detail along with the old failed research of this subject and successful research by Hertz.
It is said that this book was read by experts from all over the world, one of whom was Jagdish Chandra Basu of India. That book impressed Basu so much that he made a device based on electromagnetic waves.
The invention of radio is considered one of the most important inventions of the world. The credit for today’s modern radio system cannot be given to any single scientist. Some British scientists such as Oliver Heaviside and James Clerk Maxwell pioneered the invention of the radio. But he could not explain the electromagnetic waves accurately.
The electromagnetic wave was successfully discovered by Heinrich Rudolf Hertz in the 1880s. A book was made on top of this, in which information about electromagnetic waves was given in detail along with the old failed research of this subject and successful research by Hertz.
It is said that this book was read by experts from all over the world, one of whom was Jagdish Chandra Basu of India. That book impressed Basu so much that he made a device based on electromagnetic waves.
Use of radio
Radio communication is used in television broadcasts, cellphones, two-way radio, wireless networking and satellite communication, etc. The same radio based radar technology tracks and locates aircraft, ships, spacecraft, missiles etc
Contribution of radio in human development
In earlier times, radio was a part of people’s life, it was a major means of entertainment, radio was very important for people because in radio, people heard many different programs like information, health, sports, science, agriculture and music. Used to invent the radio was no less than a boon for the human society, it was closer to the general public because it used the language of their speech and at that time it was cheap and easily available in every house while traveling. Or you can listen while doing some other work whether there is electricity or not, it also runs on battery.
It is said that Gandhiji gave the slogan “British Quit India” for the first time on the radio itself.
Reduction in radio usage
Both internet and smartphones have become very affordable in India in the last few years, which has led to the rise of social media and online streaming platforms, due to which the importance of television and radio is not the same as before. Television is still watched by many people, but with the introduction of these advanced technologies, the use of radio has decreased significantly.
Interesting facts
- United Nations Radio started on 13 February 1946.
- Radio broadcasting started in India in 1923.
- In 1930 the ‘Indian Broadcast Company’ (IBC) went bankrupt and had to be sold. After this the ‘Indian State Broadcasting Service’ was created.
- The first news bulletin in our country was broadcast on 19 January 1936.
- The word ‘broadcasting’, used for radio transmission, was originally associated with agriculture which meant ‘scattering of seed’.
- Vividh Bharati is one of the most popular service of All India Radio. It got its name specifically from “Diverse Indian”.