Synopsis
Electricity explained with clear, practical demonstrations of early wireless ideas and electrical action.
This edition walks through how induction coils, batteries, and coils of wire create or catch signals, light, and sound. It blends simple experiments with diagrams to show how direct current behaves, how storage and gravity cells work, and how wireless ideas emerged from buzzing coils and sparks.
Begin with the basics of current, resistance, and how devices in a home circuit transform electricity into light, heat, and motion. Move into how undulating and oscillating currents produce or carry signals, and how researchers imagined talking and sending pictures without wires long before modern radio.
- Hands-on explanations of coils, receivers, transmitters, and how a simple hook or switch can control a conversation or a signal
- Foundations of batteries, storage cells, and how chemical action relates to electrical power
- Descriptions of undulating and oscillating currents and their practical uses, including early wireless ideas
- Profiles of inventors and experiments that explored wireless telephony and signaling
Ideal for readers curious about the science behind early electrical technology and the beginnings of wireless communication.
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
