Construction equipment

Since ancient times, people tried to facilitate manual labor and make it more effective. The atlas will introduce the child to the whole variety of human mechanical assistants - from an ancient water -lifting wheel to a walking excavator -giant with a length of one and a half football fields.
How did the usual shipworm pushed the invention of the machine for laying tunnels? And why did the largest bulldozer in the world never work? The answers to these and other questions will give an inquisitive child an acquaintance with the encyclopedia. Many interesting facts, the stories of witty engineering finds, colorful illustrations - all this will attract the attention of the child for a long time.
Having read this encyclopedia, the child will be able to become the head of the megastation and, using bright reusable stickers, distribute tasks to his iron workers