Bøger af Roman Belyaev

Why were bridges invented? How do they stay up and why are there so many different designs? From architecture to engineering (and other STEM subjects!), scale new heights on an enchanting journey with the school children in this book to discover answers to these questions along with other fascinating facts about bridges and how they work.

How can we tell one lighthouse from another? What does a lighthouse keeper do? Where are the most unusual lighthouses in the world? Depart on an enchanting voyage with the school children in this book to discover the answers to these questions along with other fascinating facts about lighthouses and how they work.