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Prediction of the Existance of Radio Waves
During the 1860s a scottish physicist named James Clerk Maxwell predicted the existence of radio waves -
Radio Waves Could be Broadcasted into Space
A german physicist named Heinrich Rudolph Hertz demonstrated that rapid variations of electric current could be projected into space in the form of radio waves similar to those of light and heat. -
Electric Waves Could be Transmitted Wirelessly
A german pysicist named Henirich Hertz was the first to prove that you could transmit and recieve electric waves wirelessly. -
Radios Began to Appear at Sea on Ships
This reduced the isolation of the ships thus improving both reliability and safety. -
Electromagnetic Energy Wirelessly Transmitted
Nikola Tesla wirelessly transmitted electromagnetic energy. -
First Radio Singnal Sent
Guglielmo Marconi an Italian inventor, proved the feasibility of radio communication. He sent and received his first radio signal in Italy in 1895 -
First Ship to Request Emergency Assistance
The R.F. Matthews was the first ship to request emergency assistance using radio technology. -
Invention of the Audion Tube
In 1906, Lee De Forest created the idea for the audion tube, a vacuum tube that amplified signals. -
First Speech and Music Transmission
Reginald Fessenden is the first to transmit a program of speech and music. -
First Radio Transmission from an Airplane
First Radio Transmission from an Airplane -
First Continuous Broadcast
On March 8, 1916, Harold Power with his radio company American Radio and Research Company (AMRAD), broadcast the first continuous broadcast in the world -
Radio Stations Closed
All radio stations not needed by the government are closed as WWI begins. -
Edwin Armstrong Helps Develop Radio Features
Inventor Edwin Howard Armstrong is credited with developing many of the features of radio as it is known today. Armstrong patented three important inventions that made today's radio possible. Regeneration, the superheterodyne circuit and wide-band frequency modulation or FM -
Compact Disc (CD)
The digital Compact Disc (CD) is introduced by a Japanese conglomerate. -
Compressed audio MP3
The Moving Picture Experts Group MPEG-1 Audio Layer III (MP3) compressed audio file format becomes an international standard, and eventually the most popular format for distributing digital audio over the Internet.
