Fortune Telling Collection - Zodiac Analysis - The difference between geographical North Pole and geomagnetic North Pole
The difference between geographical North Pole and geomagnetic North Pole
The geomagnetic north pole of the earth is inconsistent with that of the earth, and there is an included angle of1130'.
Difference two. Move in different positions.
The geomagnetic north pole changes with time;
The North Pole refers to the northern end of the earth's rotation axis, that is, the point of 90 north latitude, which does not change with time.
Difference three. Different R&D backgrounds
Geomagnetic North Pole: 19 In the 1920s, the famous German mathematician K.F. Gauss published a theory about the earth's magnetic field, which regarded the earth as a sphere with uniform magnetic field strength and mathematically deduced the magnetic poles.
Arctic: The Arctic Circle was first defined by the ancient Greeks. They found that the stars in the sky can be divided into two groups. One group is in the north of the world and can be seen all year round. The other group is near the zenith and the south, and they only appear periodically with the seasons.
The dividing line between the two groups of stars is the circle drawn by Ursa Major, which happens to be the latitude circle of 66 33' north latitude, that is, the Arctic Circle.
Extended data:
The origin of the Arctic name:
As you go farther north from the equator, you will find the stars in the sky hanging higher and higher above your head. Until you find the largest constellation in the northern hemisphere-Ursa Major (called the Big Dipper in China) hanging above your head, your position is the North Pole.
Therefore, when the ancient Greeks said the North, they were always associated with the bear-Aktos. The name of the North Pole "North Pole" means "where the bear stands overhead".
North Pole: Northrend. In the trailer of WLK, we know that a continent appeared above the original Azeroth continent and the Eastern Kingdom. According to geographical common sense, it should be the north, and that continent is covered with ice and snow, so that's how the North Pole came from!
Baidu encyclopedia-geomagnetic north pole
Baidu Encyclopedia-Arctic
- Previous article:Slow constellation _ slow constellation man
- Next article:Two failures of Wang Anshi's Langtaoshaling and Lu Yi.
- Related articles
- Please put the constellation _ please put the constellation.
- Blood group of MoMo Wu constellation _ MoMo Wu constellation
- I was born on September 2, 2009. What constellation is it?
- Why did Huang Paoguai turn Tang Priest into a tiger? Is there a moral?
- In the twelve constellations, which boy loves his wife the most?
- Excuse me, who knows how to say 12 constellation in English?
- Interpretation of dice in the second house of King Aquarius
- Which constellations are used to keeping a low profile so as to have more energy and time to accumulate strength?
- 1997 old calendar July 12 what is the date and constellation of the new calendar?
- Brief introduction of Yang Limin from Dance Academy of Shandong University of Arts