Book excerpt: If you've ever seen an aircraft carrier up close, you know it's very large. Standing on the pier and looking up at it you can't see either end. It seems to stretch up to the sky. An aircraft carrier may seem big to you, but it can also seem very tiny to a pilot attempting to land on it. How can this ship be both big and small at the same time? Read this book to learn about aircraft carriers, and you'll find out.