Have you ever wondered what makes machines work? How do they function and move? How do cell phones work? How do submarines dive and rise again? What happens when you start a car engine? This book explores common machines that we take for granted, and explains the basics of how they work using weight, friction, gravity, electricity, fuel, and magnetism. There are bicycle gears, microwaves, planes, telescopes, elevators, and even robots!
The coolest thing about this book is the red lens that is included in the cover. You can remove the lens with its handle and use it to reveal hidden words and illustrations on each page. This lens allows you to see inside the machines, and discover how all the parts work together. I like that the lens has a little compartment in the cover where you can safely store it away.
I loved the clever illustrations in this book! Even without the special red lens, you can still sort of make out the hidden messages in the red and blue art. Some portions of the page are hidden, and have to be revealed with the lens, but most of the page is just regular illustrations in bright colors.
I was fascinated by the interesting information about all the different types of machines. Some of them are too complex to explain fully, but we get a simplified overview. And some of the machines are so simple that we use them everyday without even realizing that they are machines.
I recommend this book for readers aged 7-12.
Disclaimer: I received a copy of this book from the publisher in exchange for a free and honest review. All the opinions stated here are my own true thoughts, and are not influenced by anyone.