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So, How Big Is Earth?

By: Amy Tao
Narrated by: Maria Pendolino
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Publisher's summary

Beliefs about the shape of the earth have varied over the millennia, but the Ancient Greeks were able to observe that our planet is round and even Eratosthenes attempted to measure its size. It was not until explorers had fully charted the globe that most people were really able to comprehend its spherical shape.

©2005 Carus Publishing Company dba Cricket Media (P)2018 Cricket Media Inc.
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