The MEaSURE Project
@themeasureproject.bsky.social
Join a bi-annual, global experiment to calculate Earth's radius! I'm a STEM teacher based in Pennsylvania, USA looking to get classrooms around the world collaborating.
1. Find a flat, level surface
2. Set up a vertical ruler
3. Find true North (northern hemisphere) or true South (Southern hemisphere)
4. Wait for the equinox
5. Measure the length of the shadow at solar noon
6. Record the time of solar noon (UTC)
7. Go to the MEaSURE website and submit your data
2. Set up a vertical ruler
3. Find true North (northern hemisphere) or true South (Southern hemisphere)
4. Wait for the equinox
5. Measure the length of the shadow at solar noon
6. Record the time of solar noon (UTC)
7. Go to the MEaSURE website and submit your data
June 13, 2025 at 3:05 AM
1. Find a flat, level surface
2. Set up a vertical ruler
3. Find true North (northern hemisphere) or true South (Southern hemisphere)
4. Wait for the equinox
5. Measure the length of the shadow at solar noon
6. Record the time of solar noon (UTC)
7. Go to the MEaSURE website and submit your data
2. Set up a vertical ruler
3. Find true North (northern hemisphere) or true South (Southern hemisphere)
4. Wait for the equinox
5. Measure the length of the shadow at solar noon
6. Record the time of solar noon (UTC)
7. Go to the MEaSURE website and submit your data