Sunday, September 11, 2016

Struve Geodetic Arc | Estonia


Postcard
The Struve Geodetic Arc is a chain of survey triangulations stretching from Hammerfest in Norway to the Black Sea, through ten countries and over 2,820 km. This helped to calculate the exact size and shape of the planet and marked an important step in the development of earth sciences and topographic mapping. 

The Struve is on the list of UNESCO World Heritage sites since 2005.

0 comments:

Post a Comment

Flags

Free counters!

Total Pageviews