Did you know that the Earth has 4 poles: two geographic and two magnetic? And the geographic poles don't match the magnetic ones. Do you want to know where the magnetics are?
Earth's poles? At the end of the 20th century, in accordance with their names, they were: the northern one was in the depths of the northern coast of Canada, and the southern one was a hundred kilometers from the edge of Antarctica.
Where are the earth's magnetic poles now? They are constantly moving. For example, the northern one in 1831 (at the time of its discovery) was at 70 degrees N. sh. In Canada. After 70 years, the polar explorer R. Amundsen found it already 50 km to the north. Scientists became interested in this and began to follow. It turned out that the pole "travels" with increasing speed. At first, its speed was small, and in recent years it has increased to 40 km / year. At such rates, by 2050 the north magnetic pole will be “registered” in Russia. And this will bring not only beautiful pictures of the northern lights, which will be visible to almost all of Siberia, but also problems in using the compass. There will also be an increase in exposurecosmic
and rays, because near the poles the Earth's magnetic field is much smaller than at the equator. Measurements showed that over 150 years the Earth's magnetic field has decreased by 10%. And it is a very effective means of protecting all living things from harsh solar and cosmic radiation. American astronauts flying to the Moon got out from under the cover of the Earth's magnetic field and received a mild form of radiation sickness. And no matter how they looked from the moon, they could not see where the Earth's magnetic poles were.
Land in Antarctica
Antarctica is the part of the Earth near the South Pole. She received the name "Anti-Arctic" or Ant-Arctic, as the antagonist of the Arctic. The name of the latter comes from the ancient Greek arktos - Bear. So the ancient Greeks called the constellation Ursa Minor with the North Star, known to all travelers.
Antarctica consists of the mainland Antarctica, adjacent parts of the Atlantic, Pacific and Indian oceans and the seas of Bellingshausen, Ross, Commonwe alth, Weddell, Amundsen and others. All marine parts of Antarctica are called the Southern Ocean. Antarctica also includes the islands of South Shetland, South Georgia, South Orkney, South Sandwich and many others. etc. Thus, Antarctica occupies the area of 50-60th south parallels.
Antarctica is the most, most, most…
Antarctica - the largest and driest desert - rainfall less than 100 mm per year: from 40-50 mm in the center to 600 mm in the north of the Antarcticpeninsulas. The most famous in narrow circles are the Dry Valleys. Rain has not been seen here for 2,000,000 years. A neighbor of the Dry Valleys is the Atacama Desert, where there has been no rain for only 400 years. The lakes of this valley are the most s alty in the world. The Dead Sea is almost fresh compared to them.
Antarctica is the most severe in terms of climate, the minimum temperature on Earth was recorded at the Soviet Antarctic station Vostok on July 21, 1983 - minus 89.6 °C.
Antarctica is the place of the strongest winds. Dashing glory have katabatic winds. The air, upon contact with glaciers at an altitude of 1000 to 4500 m, cools down, condenses and begins, accelerating, to flow to the coast, sometimes reaching a speed of 320 km/h.
Antarctica is the iciest place on Earth. Only 0.2-0.3% of its surface is not covered with ice - in the Transantarctic Mountains and the western part of the continent, as well as parts of the coast or individual ridges and peaks (nunataks).
In the summer, south of the Arctic Circle, these areas get very warm, and then the air above them heats up. For example, in the Dry Valley on Victoria Land in December 1961 it was +23.9° N.
Now you know where the Earth's magnetic poles are.
