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carrier wave: Word of the day for July 27, 2019

carrier wave , n :
(physics) A wave that can be modulated, either in amplitude, frequency, or phase, to carry or transmit images, music, speech, or other signals. Italian electrical engineer and inventor Guglielmo Marconi, who is credited with inventing the radio, made the first public transmission of wireless signals on this day in 1896, from a site in London, UK, now occupied by the BT Centre.
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