Inventions & Discoveries - Electronics & Communication: Knowledge Encyclopedia For Children

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 section of fun facts to keep you glued for more.