If you fancy getting involved in a fun international schools' experiment to measure the size of the Earth, then we recommend that you register for the Eratosthenes Experiment 2016
, which takes place on the 22nd September this year. In doing so, you will be following in the footsteps of the ancient astronomer, Eratosthenes
, who devised a good method of measuring Earth's circumference, way back in 240 B.C. Given the limited equipment available at the time, it was remarkable that he was able to do so to within 50 miles (or 1%) of the actual value of 24,860 miles (40,008 km).
By getting involved in the project, you'll be able to combine your schools' measurements with those from around the world to see if you can improve on the Eratosthenes result. The experiment is suitable for both primary and secondary students, and all you'll need is a vertical stick, a moment of sunshine, and a way of measuring both stick and it's shadow. Throw in a dash of Pythagoras and the internet, and you're there. For more information, please visit the following link:
Visit the Eratosthenes Experiment 2016