circumference of the Earth
Ancient Greece
Carl Sagan on the Brilliance of Ancient Greek Scientist Eratosthenes
Carl Sagan, the American astronomer, author, and science communicator was renowned for making difficult scientific concepts understandable to the millions; he did exactly this at the beginning of his renowned series Cosmos by explaining the thought process of the...
Ancient Greece
Greek Students Take Part in Eratosthenes’ Greatest Experiment
An experiment devised by one of Greece's greatest scientists, Eratosthenes, was recreated once again recently by students from 35 nations.