What Is a Telephone?: From Wires to Smartphones - Tapa blanda

What Is a Telephone? (Paperback)

Paperback. Condición: new. Brum, Alex Ilustrador. Paperback. How can your voice travel hundreds - or even thousands - of miles and reach someone almost instantly?The telephone began with wires, simple electrical signals, and an extraordinary idea: what if the human voice could be sent somewhere else?What Is a Telephone? takes young readers on a visual journey from the earliest telephone experiments to switchboards, rotary phones, mobile networks, and the smartphones we carry today.Along the way, children discover how telephone technology actually works and why it changed the world.Readers will explore: How early telephones carried voices through wiresWhat Alexander Graham Bell contributed to telephone historyWhy telephone operators and switchboards were once neededHow rotary phones workedHow telephone networks connected homes and citiesWhy mobile phones are called "cellular"How cell towers help calls travelHow mobile phones changed from large early models to pocket-sized devicesWhat happens when you tap CALL on a smartphoneHow one invention transformed communication around the worldRather than presenting technology as a collection of gadgets, the book connects each invention to the problem it helped solve - showing children how one idea gradually became the worldwide communication system we use today.With colorful illustrations, timelines, diagrams, and clear explanations, What Is a Telephone? turns an everyday object into a fascinating story of science, engineering, invention, and human connection.A lively introduction to communication technology for curious children ages 5-9. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability. Nº de ref. del artículo: 9798171329228

Contactar al vendedor