Signalling across space without wires being a description of the work of Hertz & his successors

"Signalling across space without wires" by Sir Oliver Lodge is a scientific exploration that highlights the revolutionary work of Heinrich Hertz and those who followed him. It centers on the use of electromagnetic waves for wireless communication way back in the 1800's. Lodge takes Hertz’s discoveries and breaks down the ideas and experiments that show how electrical signals can travel without wires. The text begins with a lecture given by Lodge, where he remembers Hertz’s important work and early death. Lodge aims to show some of Hertz's experiments up close while explaining the ideas of electrical waves and how they can be used for telegraphy. The beginning of the book prepares the reader for a close look at wireless communication ideas, explaining early experiments that give real-world context to the existence and character of electromagnetic waves.