The magnetic poles of the earth are the positions where themagnetic fields are the most powerful. They are close to the geographic poles but are not in the same location. The magnetic pole in the north positions slightly south of the geographic north pole. The magnetic pole in the south pos...
The magnetic poles or dip poles are the points on the Earth's surface and circum‐terrestrial area where the magnetic field is vertical, so the horizontal component vanishes. They are not coincident with geomagnetic poles, which are the points where the dipole axis, obtained by analytic models,...
THE principal magnetic field of the Earth, often called the dipole field, is thought to be caused by a homogeneous dynamo action in the Earth's fluid core 1 . The flow pattern in the core is not known and there is even controversy as to whether it is in a state of turbulence 2 or ...
1英语翻译The Earth’s magnetic north pole is actually like the south pole of a magnet,and vice versa.译文:地球的磁北极实际上就相当于磁铁的南极,反之亦然.我认为地球的磁北极就是地球磁场的北极.换句话说,如果地球是一块磁铁,磁北极就应该是这块磁铁的北极.但为什么文章说“磁北极实际上就相当于磁铁的...
The Earth’s magnetic field has weakened by around 10% during the last 180 years. At the same time, a region in the South Atlantic, off the coast of South America, has developed an abnormally weak magnetic field. This region, where satellites have malfunctioned several times due to exposure...
magnetic pole n.[物][地]磁极 motion of earth pole 极移 annular rotor magnetic pole 环形转子磁极 negative magnetic pole phr. 负极 solid magnetic pole 实心磁极 magnetic pole tips 磁极尖, 磁头尖 south magnetic pole 南磁极 相似单词 earth's a. 地球的,土地的 pole n. 极点,磁极,电极...
IN the most recent analysis of the Earth's magnetic field (for the epoch 1942), Spencer Jones and Melotte 1 evaluated forty-eight coefficients in the spherical harmonic expansion of the magnetic potential. Using their values for a spheroidal Earth, the X (northerly) and Y (easterly) ...
noun 1 : either of two small regions of the earth which are located near the North and South Poles and toward which a compass needle points 2 : either of the poles of a magnet More from Merriam-Webster on magnetic pole Britannica.com: Encyclopedia article about magnetic pole Last...
Magnetic poles are located where the magnetic lines of attraction enter Earth. The Magnetic North Pole is also known as the North Dip Pole and is currently found on Ellesmere Island in Northern Canada. When a magnetic compass points north it is aligning itself with Earth's magnetic field and ...
(If this were to happen today, it would render compasses useless as the needle would swing from pointing towards the north pole to pointing to the south.) During this process, Earth's magnetic field, which protects the planet from hot sun particles and solar radiation, becomes weaker. "...