Russian Empire Bolsheviks followed in 1918. The administrative boundaries of European Russia, apart from Finland and its portion of Poland, coincided approximately with the natural limits of the East-European plains. In the North it met the Arctic Ocean. Novaya Zemlya and the Kolguyev and Vaygach Islands also belonged to it, but the Kara Sea was referred to Siberia. To the East it had the Asiatic territories of the Empire, Siberia and the Kyrgyz steppes, from both of which it was separated by the Ural Mountains, the Ural River and the Caspian Sea — the administrative boundary, however, partly extending into Asia on
Novaya Zemlya effect which are normally invisible due to their distance. After studying the Saga of Erik the Red, Waldemar Lehn concluded that the Novaya Zemlya effect may have aided the Vikings in their discovery of Iceland and Greenland, which are not visible from the mainland under normal atmospheric conditions. Novaya Zemlya effect The Novaya Zemlya effect is a polar mirage caused by high refraction of sunlight between atmospheric thermal layers. The Novaya Zemlya effect will give the impression that the sun is rising earlier than it actually should (astronomically speaking), and depending on the meteorological situation, the effect will present the Sun