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Invention of radio
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
.
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