עצלות לגלף סנטימטרים the first radio invented by guglielmo marconi בכך אני חושב שאני חולה מוכשר
File:Marconi's first radio transmitter.jpg - Wikimedia Commons
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Guglielmo Marconi, 1st Marquis of Marconi, 1874 - 1937, Italian inventor and electrical engineer, inventor of radio, Nobel Prize Stock Photo - Alamy
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A radio operator receiving a wireless telegraphy message using a Marconi magnetic detector, an early radio receiving instrument invented by Guglielmo Marconi in 1903 Stock Photo - Alamy
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