Magnetic field topologies between the Sun and Earth are important for the connectivity to Earth of solar suprathermal particles, e.g., solar energetic particles and the electrons in type III solar radio bursts. An approach is developed for mapping large-scale magnetic field lines in the solar ...
Earth's magnetic field can be visualized if you imagine a large bar magnet inside our planet, roughly aligned with Earth's axis. Each end of the magnet lies relatively close (about 10 degrees) to the geographic North and South poles. Earth's invisible magnetic field lines travel in a close...
The Magnetic Field of the Earth - GeoWeb地球的磁场GeoWeb 热度: The Magnetic Field[磁场](PPT-65) 热度: Lecture 13 Magnetic Fields and Forces In 1269 a Frenchman named Pierre de Maricourt found that the directions of a needle near a spherical natural magnet formed lines that encircled the sp...
Scientists have long known that turtles,like many animals,find their way and direction at sea by sensing the invisible(无形的) lines of Earth's magnetic field(磁场) similar to how sailors use latitude(纬度)and longitude. But they didn,t know ...
In simple terms, a magnetic field is a region of space where a magnetic force can be detected. This force acts on moving charged particles, such as electrons or protons, and on magnetic materials like iron. It's often visualized using lines of force, also known as magn...
Pigeons navigate less accurately when the earth's magnetic field is disturbed. 地球磁场受到干扰时,鸽子的道航能力就会变得不准确. 《简明英汉词典》 The secondary current sets up a magnetic field inside the tube. 二次电流在管子内部会产生磁场。 柯林斯例句 展开全部 英英释义 Noun 1. the lines of for...
An analytical method is described to account for the effect of earth resistivity on the magnetic and electric field intensities near transmission lines. The effect is derived from the boundary conditions at the airearth surface. The field intensity vectors, even for a single-conductor line, trace ...
美 英 na.磁场 网络的磁场 复数:magnetic fields 权威英汉双解 英汉 英英 网络释义 magnetic-field n. 1. 磁场an area around a magnet or magnetic object, where there is a force that will attract some metals towards it 例句
Magnetic field, a vector field in the neighborhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable. Magnetic fields such as that of Earth cause magnetic compass needles and other permanent magnets to lin
Earth’s magnetic field was once 30 times weaker than it is today. This change may have played a pivotal role in the blossoming of complex life, new research found.