How Eratosthenes calculated the Earth’s circumference
https://www.youtube.com/watch?v=Mw30CgaXiQw
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
- Topics:
- Space and Geometry, Circle Geometry, Similarity
- Content Type:
- Interesting, Stimulus, Video, YouTube
- NSW Mathematics Standard Stage 6 Syllabus
- Measurement, MS-M2 Working with Time
Submit a correction to this link | Help align this link to The Australian Curriculum
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