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This children's book explores the innermost workings of some extraordinary buildings and machines. From helicopters to submarines, skyscrapers to coal mines, open up a fascinating …
How many rivets and bolts hold the wings of a Boeing 777 plane together? Why does an astronaut's space suit have a layer of liquid-cooled underwear? Who puts the jam in …
How does the body protect itself from infections? What makes your tummy rumble? Are you taller at the beginning or end of the day?This extraordinary book actually takes you inside …