Thursday, June 21, 2012

Students measure Earth's circumference on longest summer day | ummid.com

Students measure Earth's circumference on longest summer day | ummid.com
Organised by Science Popularisation of Communicators and Educators (SPACE), the participants took actual measurements of the shadows made by the sun to measure the circumference of the earth as done 2,300 years ago by Greek astronomer Eratosthenes.