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Joseph Henry discovers radio waves
Joseph Henry publishes his experimantal results showing the discharge in leyden jars and describes how a generated spark could magnetize a needle surrounded by a coil, an effect that he said was probably an affect of radio waves. -
David E. Hunghes discovers radio waves create sound
David E. Hunghes notices that sparks form a telephone he was developing is creating noise. He rigs up a portable receiver and finds out by carrying down the street that the sparking could be detected at some distance. -
Marconi opens 1st radio factory
Marconi opened the first radio factory, on Hall Street, Chelmsford, England, employing around 50 people. This is a huge step forword for the radio bussness. -
Marconi is awarded by the U.S. Patent Office
The U.S. Patent Office reversed its decision, awarding Marconi a patent for the invention of radio. He is awarded becuase he is considerd a main part of the devopment of the radio used for music and comunitcaton -
Marconi and Karl Braun awarded Nobel Prize
Marconi and Karl Ferdinand Braun were awarded the Nobel Prize in Physics for "contributions to the development of wireless telegraphy".
This was a big thank yoou for to them for inventing the radio which is very nessisary in our world today -
Wireless Shop Act passed by U.S. Congress
The Wireless Ship Act was passed by the United States Congress, requiring all ships of the United States traveling over two-hundred miles off the coast and carrying over fifty passengers to be equipped with wireless radio equipment with a range of one-hundred miles. The legislation was prompted by a shipping accident in 1909, where a single wireless operator saved the lives of 1200 people. This Act is said to have saved thousnds of lives over the years. -
First regular broadcasts
First regular breadcasts on 9XM (which is now WHA). It broadcated state Wisconsin state weathe delivered in Morse Code. -
First clear transmission of human speech
First clear transmission of human speech, (on 9XM) after experiments with voice (1918) and music (1917). This was a big push for having human speech on the radio as a normal thing. -
E.W. Scripps's WWJ in Detroit received its commercial broadcasting license
E.W. Scripps's WWJ in Detroit received its commercial broadcasting license and started broadcasting. It has carried a regular schedule of programming to the present. Broadcasting was not yet supported by advertising. -
Radio was first used to transmit pictures visible as television.
Radio was first used to transmit pictures visible as television. This was the start of a whole other indistury and is a big step in the furtue. -
Big record labels begin using electric microphones for recording
Big record labels begin using electric microphones for recording. This was a huge diffreince in quailty of songs that where recorded. It also made some small record labels become big record label componys. -
Bell Labs creates first stereophonic sound recordings
Bell Labs creates first stereophonic sound recordings. This was used to record better and clearer songs making the industruy even bigger. -
Adolph Rickenbacker produces first electric guitar
Adolph Rickenbacker produces first electric guitar. They produced the first cast aluminium versions of the lap steel guitar witch made some rock and roll music more popular. -
Sony Introduced thier 1st transistorized radio
Sony introduced thier first tansistoized radio, which was small enough to fit in your pocket but still be powered by radio. It was also durable, becuase there were not tubes to burn out. This was very importent for future development of smaller radios. -
U.S. Army constructs saoftware radio that changes on the fly
The U.S. Army and DARPA launched an aggressive successful project to construct a software radio that could become a different radio on the fly by changing software. This would become very important in the future of warfare.
