Eratosthenes is a great opportunity to engage students from different countries to work on a collaborative experiment.

In this activity students measure the shadow of Sun in a specific day and use it with the measurements performed by another school in the same longitude but in a different latitude in order to calculate the circumference of the Earth.

Get more information and register on the project website.

Soon we’ll there will be in this page information about other projects, namely:

  • Community building with OAS
  • Design Thinking with stars
  • One Planet, my Planet
  • Online Messier Marathon
  • IASC
  • Dark Skies Rangers