The radio a powerful medium for Building a #HateFreeCameroon
![](https://defyhatenow.org/wp-content/uploads/2023/02/photo_2023-02-14_12-47-16-1024x538.jpg)
The first advancement in telecommunications was radio, the first wireless mode of communication. Radios send messages by radio waves instead of wires. German scientist Heinrich Hertz proved the existence of […]