jrn1109

A brief History of Radio

Gagliemo Marconi demonstrating apparatus he used in his first long distance radio transmissions in the 1890s. Hey everyone! let’s talk about radio invention. Don’t forget we can do it. Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating some property of electromagnetic energy waves transmitted through space,… Continue reading A brief History of Radio

jrn1109

Newspaper Era and Sound recording

   A phonograph Hello people, let’s talk about newspaper era and sound recording. The first newspaper era started in 1690 when Benjamin Harris published “publick occurrence”. It was ban by the colony after one issue. John Campbell published “The boston news-letter” in 1704, it reported on mundane events that took place in Europe months earlier.… Continue reading Newspaper Era and Sound recording