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- Invention_of_radio abstract "Many people were involved in the invention of radio in its current form. Experimental work on the connection between electricity and magnetism began around 1820 with the work of Hans Christian Ørsted, and continued with the work of André-Marie Ampère, Joseph Henry, and Michael Faraday. These investigations culminated in a theory of electromagnetism developed by James Clerk Maxwell, which predicted the existence of electromagnetic waves.After Maxwell's theory was published, many people experimented with wireless communication, some intentionally using Maxwell's theory and some not. It is considered likely that the first intentional transmission of a signal by means of electromagnetic waves was performed by David Edward Hughes around 1880, although this was considered to be induction at the time. The first systematic and unequivocal transmission of EM waves was performed by Heinrich Rudolf Hertz and described in papers published in 1887 and 1890. Hertz famously considered these results as being of little practical value.After Hertz's work many people were involved in further development of the electronic components and methods to improve the transmission and detection of electromagnetic waves. Around the turn of the 20th century others, notably Guglielmo Marconi, were directly involved in practical improvements to develop them into commercial system of wireless telegraphy. Reginald A. Fessenden became the first to send audio (wireless telephony) by means of electromagnetic waves in 1907. By 1910 these systems had come to be referred to by the common name "radio".".
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- Invention_of_radio wikiPageID "3800477".
- Invention_of_radio wikiPageRevisionID "606792934".
- Invention_of_radio hasPhotoCollection Invention_of_radio.
- Invention_of_radio subject Category:Articles_which_contain_graphical_timelines.
- Invention_of_radio subject Category:Discovery_and_invention_controversies.
- Invention_of_radio subject Category:History_of_electronic_engineering.
- Invention_of_radio subject Category:History_of_radio.
- Invention_of_radio subject Category:Italian_inventions.
- Invention_of_radio type Ability105616246.
- Invention_of_radio type Abstraction100002137.
- Invention_of_radio type Cognition100023271.
- Invention_of_radio type Creativity105624700.
- Invention_of_radio type Invention105633385.
- Invention_of_radio type ItalianInventions.
- Invention_of_radio type PsychologicalFeature100023100.
- Invention_of_radio type Event.
- Invention_of_radio comment "Many people were involved in the invention of radio in its current form. Experimental work on the connection between electricity and magnetism began around 1820 with the work of Hans Christian Ørsted, and continued with the work of André-Marie Ampère, Joseph Henry, and Michael Faraday.".
- Invention_of_radio label "Erfindung des Radios".
- Invention_of_radio label "Invention of radio".
- Invention_of_radio sameAs Erfindung_des_Radios.
- Invention_of_radio sameAs m.0b0p2n.
- Invention_of_radio sameAs Q1516738.
- Invention_of_radio sameAs Q1516738.
- Invention_of_radio sameAs Invention_of_radio.
- Invention_of_radio wasDerivedFrom Invention_of_radio?oldid=606792934.
- Invention_of_radio isPrimaryTopicOf Invention_of_radio.