How does a fitness tracker know how many steps you've walked? Why does a cruise ship float on water? What technologies are changing our cities?

This comprehensive guide explains how everyday objects work, from a combine harvester to a whiteboard. Cutting-edge photography and comprehensive explanations make this a fantastic opportunity to learn science in a new way. Based on the very latest research, this is the definitive children's guide to understanding the world around us. For children aged 8+.

ABOUT THE SERIES: Arcturus Children's Reference Library uses stunning photography, fabulous facts and useful diagrams to introduce a variety of subjects - from the animal kingdom to space. Great to dip into, these reference guides are a staple for any child's bookshelf.