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The straight distance between Russia and Alaska is 82.5 kilometers (51.3 mi). If building bridges and using the Diomede Islands, the straight distance over water for the three parts would be 36.0 km (22.4 mi), 3.8 km (2.4 mi) and 36.8 km (22.9 mi), in total 76.6 km (47.6 mi). [22] [better source needed]
The Russia–United States maritime boundary was established by the June 1, 1990 USA/USSR Maritime Boundary Agreement [1] (since Russia declared itself to be the successor of the Soviet Union). The United States Senate gave its advice and consent to ratification as early as on September 16, 1991, but it has yet to be approved by the Russian ...
The northernmost and easternmost points of Russia coincide with those of Eurasia (both for the mainland and including the islands). The extreme points of the Soviet Union were identical, except that the southernmost point of the Soviet Union was Kushka in Turkmenistan , and the extreme elevation was the Communism Peak in Tajikistan , at 7,495 ...
An Atlas of Russian History: Eleven Centuries of Changing Borders (2nd ed. 1967) Gilbert, Martin. Routledge Atlas of Russian History (4th ed. 2007) excerpt and text search; Henry, Laura A. Red to green: environmental activism in post-Soviet Russia (2010) Kaiser, Robert J. The Geography of Nationalism in Russia and the USSR (1994). Medvedev, Andrei.
Posidonius calculated the Earth's circumference by reference to the position of the star Canopus.As explained by Cleomedes, Posidonius observed Canopus on but never above the horizon at Rhodes, while at Alexandria he saw it ascend as far as 7 + 1 ⁄ 2 degrees above the horizon (the meridian arc between the latitude of the two locales is actually 5 degrees 14 minutes).
Lunar distance LD ≈ 384 402 km. [10] Average distance between the center of Earth and the center of the Moon. astronomical unit au. Defined as 149 597 870 700 m. [11] Approximately the distance between the Earth and Sun. light-year ly ≈ 9 460 730 472 580.8 km. The distance that light travels in a vacuum in one Julian year. [12]
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Metrication is also gradually taking place in cargo mass and dimensions and in fuel volume and mass. In former Soviet countries and China, the metric system is used in aviation (whereby in Russia altitudes above the transition level are given in feet). [148] [149] Sailplanes use the metric system in many European countries.