How Eratosthenes calculated the Earth’s circumference

Interesting, Stimulus, Video, YouTube

In the mid-20th century we began launching satellites into space that would help us determine the exact circumference of the Earth: 40,030 km. But over 2000 years earlier, a man in Ancient Greece came up with nearly the exact same figure using just a stick and his brain.

24 September 2017 Edit: 24 September 2017

NSW Mathematics Standard Stage 6 Syllabus
MeasurementMS-M2 Working with Time

Submit a correction to this link | Help align this link to The Australian Curriculum


How have you used this link in your classroom? Share your teaching ideas or leave a review about this link.

Sign in to leave a comment.

There are no comments for this link.