Digital map for use exclusively in the Avenza Maps app
From Eratosthenes to Global Positioning Systems: Calculating the Size of the Earth
$4.99 USD
Eratosthenes was a Greek mathematician who lived between 276 and 195 BC. He is best known for calculating the circumference of the Earth and the axial tilt of the Earth with a good degree of accuracy. Eratosthenes calculated the circumference of the Earth on June 21st (The Summer Solstice) by not...
Category:
Educational
Size:
1.54MB
Publication:
June 2025
Language:
English
This product is available exclusively in digital format, for use only in the Avenza Maps app.
Map bounds
Check nearby mapsWhat you get with Avenza Maps
Reliable mapping tools
Record GPS tracks, add placemarks, add photos, measure distances, and much more.
Locate yourself with GPS
Avenza Maps offline GPS app on your mobile device can locate you on any map, without WiFi or network connectivity.
The best maps by the best publishers
Download professionally curated digital maps on the Avenza Map Store from the best-renowned publishers.