So, How Big Is Earth? by Amy Tao

https://thebookvoice.com/podcasts/2/audible/74891 to listen full audiobooks. Title: So, How Big Is Earth? Author: Amy Tao Narrator: Maria Pendolino Format: mp3 Length: 6 mins Release date: 10-08-24 Ratings: 5 out of 5 stars, 1 rating Genres: Science & Technology 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.