Hertzian waves enabled wireless telegraphy in 1895
In 1895, Guglielmo Marconi harnessed Hertzian waves to achieve the first wireless telegraphy, marking the dawn of modern radio communication and a new era of global connectivity.
In 1895, Guglielmo Marconi achieved the first wireless telegraphy, building on Heinrich Hertz's discovery of electromagnetic waves. These "Hertzian waves," predicted by James Clerk Maxwell, could travel through space without wires. Marconi, then 21, transmitted Morse code signals over 1.5 miles across his family estate. This breakthrough eliminated the need for physical cables, revolutionizing long-distance communication. It paved the way for radio, television, and today's mobile networks, fundamentally changing how information connects the world. Hertz himself doubted the practical uses of his waves, yet they became the bedrock of a multi-trillion-dollar industry.