Struve geodetic arc – Unesco – Struven ketju Alatornio


A single postcard.

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Struve geodetic arc is part of the history of science and technology. It’s an UNESCO World Heritage feature that’s located in ten countries stretching from Arctic Ocean to Black Ocean. The countries are Norway, Sweden, Finland, Russia, Estonia, Latvia, Lithuania, Belarus, Moldova and Ukraine. German-born Russian scientist Friedrich Georg Wilhelm von Struve used it during 1816 – 1855 to determine the Earth’s size and shape using triangulation. The arc had 265 measurement points spanning over 2800 km. 34 of them are UNESCO protected sites since 2005. Six of them are located in Finland.
The one in this card is at  65°49′48″N, 024°09′26″E, on top of the Alatornio church belfry.
The photo was taken by Minna of Minor Postcards during late summer of 2017 from the opposite side of the Tornio river – from Sweden.

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Weight 0.0045 kg


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