Astronomy and Space + Pure Mathematics
Measure the Earth's circumference like Eratosthenes
Measure a stick's shadow at local noon in two cities and calculate the size of the Earth.
- Intermediate
- 1 day
- Free
606 projects · 13 streams · every class
Observe the sky, track satellites and model orbits with your eyes, a phone or free data from space agencies.
2 Astronomy and Space projects
Astronomy and Space + Pure Mathematics
Measure a stick's shadow at local noon in two cities and calculate the size of the Earth.
Astronomy and Space + Photography, Film and Animation
Take a long exposure of the night sky and measure the Earth's rotation from the arcs.
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