Inventions & Discoveries - Electronics & Communication: Knowledge Encyclopedia For Children  (English, Paperback, Wonder House Books)

Can you think of life without mobile phones or laptops anymore? Do you know how is electricity created? How did people manage to send long-distance messages when mobile phones were not invented? This Encyclopedia will answer these and more hows for you. Learning is made simpler with well-labelled diagrams and an extensive glossary of difficult words. Bonus: The book comes loaded with Isn't It Amazing-a section of fun facts to keep you glued for more.