Struve geodetic arc – Unesco – Struven ketju Aavasaksa


A 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, one of them in Aavasaksa, at coordinates 66°23′52″N 23°43′31″E. You can see the national landscape surrounding the site. Aavasaksa is the southernmost point of Finland where you can see the midnight sun.

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Weight 0.004 kg