Near the end of the 19th century, it was discovered that an electric spark sent out electrical energy which traveled through the air without wires and could be detected at a distant point. This discovery lead to the invention of wireless telegraph and then radio. 

Now the same technology is being used to transmit radio signals as well as signals for television, wireless phones and wireless internet.

 Project description
In this project you will learn how the radio signals are created and how you can collect them and send them to a speaker. You will make a simple radio as a part of this project.
 Details of this project
More details or support for this project is available at the members section of web site. Material needed for experiment or a science kit about this title may be available at