How Big Is Earth? Archives - IAU Office of Astronomy for Development https://astro4dev.org/category/how-big-is-earth/ Astronomy for a better world! Wed, 06 Jan 2016 08:58:57 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 https://astro4dev.org/wp-content/uploads/2021/03/cropped-03_OAD_symbol_colour_2-32x32.jpg How Big Is Earth? Archives - IAU Office of Astronomy for Development https://astro4dev.org/category/how-big-is-earth/ 32 32 Final Report https://astro4dev.org/update-14/ Wed, 06 Jan 2016 08:58:57 +0000 https://astro4dev.org/?p=14506 The final report can be downloaded in pdf

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]]> Overview of the project https://astro4dev.org/overview-of-the-project-55/ Wed, 11 Mar 2015 15:04:09 +0000 https://astro4dev.org/?p=13332 Project leader Bonnie Thurber, b-thurber@northwestern.edu Project location: Digital: Chile, China, Nepal, Russia, South Africa, and the United States Project description: Using only the sunlight striking the Earth and a wooden dowel, students can measure the circumference of the earth. Eratosthenes did it over 2,000 years ago. In Cosmos, Carl Sagan shared the process by which Eratosthenes [...]

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