The birth of long-distance radio, one hundred years ago this month, by Guglielmo Marconi - who was later to confess "You know I have always considered myself an amateur" - and his assistant George Kemp, is a matter of history. Or is it? Even today, many radio-propagation experts are convinced that whatever clicks Marconi and Kemp heard on that windy Newfoundland cliff, they could not have originated from the three dots automatically transmitted from Poldhu, 3500km distant.
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