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Hertz Discovers Electromagnetic Waves.
Heinrich Rudolph Hertz (1857-1894) was a great German physicist who made the existance of radio, televsion, etc. possible. He was one of the first people to establish that electromagnetic waves exist. He did this by building what is called an "apparatus". The apparartus created and detected the "VHF/UHF radio waves". -
Ships at Sea
Around this time (1891), radios made their way to ships at sea. An example of this is, "Titanic". The use of radios on the ship let others know about the sinking ship, asking for help. Without it, know one would know that they were in need. -
Marconi Builds First Equipment.
Guglielmo Marconi (1874-1937) was an Italian engineer and inventor. Along with Hertz, Marconi also made history. He received, and also sent, the very first radio signal in 1895. This took place in Italy. -
Transatlantic signal.
Marconi strikes again. In 1901, the very first Transatlantic signal was sent by Marconi. It was sent all the way from Ireland to
Canada. -
Radio in Music.
Reginald Fesseden is one to credit for the development of music in radio broadcasts. He created and transmitted a program that produces speech and music. He was the first to do so. -
Audion is Created.
In 1906, Lee DeForest created an invention, not too long after Fesseden. This invention was called the “Audion”. An Audion is triode vacuum tube that allows for sound to be amplified. -
First Song Played.
The very first piece of music over radio was produced by Fessenden. The piece played was a violin solo by Fessenden and his wife. The song was, "O Holy Night." -
Radio in WW1.
All radio activities were suspended during World War One, due to the government taking over it. Many resources were created for the military through the use of radios, including direct communication with airplanes. The war also brought ideas to create applications that bring entertainment for the troops. -
Broadcasting after World War One.
Broadcasting After World War One Due to improvements in vacuum-tube technology, radio broadcasting grew after the Great War. At first, there was a shortage of equipment, especially vacuum-tubes. Eventually, the experiments continued to grow with the people's control. -
First Official Radio Broadcast.
On November 2, 1920, a station with the name of "KDKA" created the nation's first commercial broadcast. This date was selected due to it also being election day. It was broadcasted in Pittsburgh, PA.
