The Librarian Who Measured the Earthby Kathryn Lasky, Kevin Hawkes
A colorfully illustrated biography of the Greek philosopher and scientist Eratosthenes, who compiled the first geography book and accurately measured the globe's circumference.
Meet the Author
Kathryn Lasky has written a variety of books for children, including fiction, picture books, and many nonfiction books. She is the author of the Guardians of Ga'Hoole series and several titles in the Dear America series, and her book Sugaring Time was awarded a Newbery Honor in 1983. In 1986 she received the Washington Post-Children's Book Guild Award for the body of her nonfiction work.
Kevin Hawkes has written and illustrated many books for young readers, including Library Lion and Then the Troll Heard a Squeak. In illustrating The Librarian Who Measured the Earth, he was inspired by the Greek landscape and light, as well as the challenge of bringing a subject like ancient history to life. Kevin lives with his wife and children in Southern Maine.
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Lasky tries to oversimplify the mathematics and manages to munge the explanation. My 9 year old can see that the earth would have to curl around the sun in order for the sun's rays to shine straight down every hole. It might take another page or two, but really, if you're going to explain the mathematics, do it right or not at all.