What is the radio?
-A radio, is the transmission of signals through free space by electromagnetic radiation. These waves are called radio waves. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space. Through the radio, we can play music or listen to radio stations.
-In the nineteenth century, an Italian physicist called; Alessandro Giuseppe Antonio Anastasio Gerolamo Umberto Volta, better known as Alessandro Volta, invented what we all known is called a “battery”. After that invention, the first telegraph was created by Samuel Morse. He then introduces some changes in this telegraphs; the strip of paper and the Morse Code. This code, transmits a type of message through dots and dashes. Thirty five years after those events, the telephony is created. Making this new technology able to transmit sounds through a cable. After that moment, voice transmissions are able to be done through the new technology added to the telephony, creating what we all know as the radio. Adding after a while, what we all love about the radio today; music and programs.
-The “Internet Radio” is the radio we all know, transmitted through the internet. (Duh!) Music streaming on the Internet is usually referred to as web casting since it is not transmitted broadly through wireless means. Internet radio services are usually accessible from anywhere in the world—for example, one could listen to an Australian station from Europe or America. Some major networks like CBS Radio and Citadel Broadcasting in the US, and Chrysalis in the UK restrict listening to in-country because of music licensing and advertising concerns. Today, the most popular internet radio station is Pandora where you can hear anything you want and like.
Today we use: