11129_sou05_23ste_co_wb
... – geographic North Pole – North Magnetic Pole – geographic South Pole © ERPI Reproduction and adaptation permitted solely for classroom use with Observatory. ...
... – geographic North Pole – North Magnetic Pole – geographic South Pole © ERPI Reproduction and adaptation permitted solely for classroom use with Observatory. ...
what is Magnetism how it works
... The Chinese and Greeks knew about the “magical” properties of magnets. The ancient Greeks used a stone substance called “magnetite.” They discovered that the stone always pointed in the same direction. ...
... The Chinese and Greeks knew about the “magical” properties of magnets. The ancient Greeks used a stone substance called “magnetite.” They discovered that the stone always pointed in the same direction. ...
Evidence Sheet 2 Locations of past glaciers
... magnetic dipoles within the crystals move around in all directions so that there is no net magnetic field of the rock. As the rock cools even more the magnetic dipoles slow down and start to become aligned with the direction of the Earth’s magnetic field. Once the rock cools to the Curie temperature ...
... magnetic dipoles within the crystals move around in all directions so that there is no net magnetic field of the rock. As the rock cools even more the magnetic dipoles slow down and start to become aligned with the direction of the Earth’s magnetic field. Once the rock cools to the Curie temperature ...
Document
... We make up a unit of field strength (H) called one oersted (Oe), defined as the field that exerts a force of 1 dyne on one unit of pole strength (an esu) ...
... We make up a unit of field strength (H) called one oersted (Oe), defined as the field that exerts a force of 1 dyne on one unit of pole strength (an esu) ...
magnetism
... Q. 17. What is the condition for getting maximum force on a current carrying conductor placed in a magnetic field? Q. 18. What happens to the force on a current carrying conductor when placed perpendicular in uniform magnetic field has its length doubled? Q. 19. If current flowing through a conduct ...
... Q. 17. What is the condition for getting maximum force on a current carrying conductor placed in a magnetic field? Q. 18. What happens to the force on a current carrying conductor when placed perpendicular in uniform magnetic field has its length doubled? Q. 19. If current flowing through a conduct ...
File
... Living things on Earth’s surface would be harmed directly by the radiation and the particles. Also, without a magnetic field, life on Earth may not have had a chance to evolve in the first place. If a planet is not protected by a magnetic field, rapidly moving charged particles can literally bounce ...
... Living things on Earth’s surface would be harmed directly by the radiation and the particles. Also, without a magnetic field, life on Earth may not have had a chance to evolve in the first place. If a planet is not protected by a magnetic field, rapidly moving charged particles can literally bounce ...
Magnetosphere of Saturn
The magnetosphere of Saturn is the cavity created in the flow of the solar wind by the planet's internally generated magnetic field. Discovered in 1979 by the Pioneer 11 spacecraft, Saturn's magnetosphere is the second largest of any planet in the Solar System after Jupiter. The magnetopause, the boundary between Saturn's magnetosphere and the solar wind, is located at a distance of about 20 Saturn radii from the planet's center, while its magnetotail stretches hundreds of radii behind it.Saturn's magnetosphere is filled with plasmas originating from both the planet and its moons. The main source is the small moon Enceladus, which ejects as much as 1,000 kg/s of water vapor from the geysers on its south pole, a portion of which is ionized and forced to co-rotate with the Saturn’s magnetic field. This loads the field with as much as 100 kg of water group ions per second. This plasma gradually moves out from the inner magnetosphere via the interchange instability mechanism and then escapes through the magnetotail.The interaction between Saturn's magnetosphere and the solar wind generates bright oval aurorae around the planet's poles observed in visible, infrared and ultraviolet light. The aurorae are related to the powerful saturnian kilometric radiation (SKR), which spans the frequency interval between 100 kHz to 1300 kHz and was once thought to modulate with a period equal to the planet's rotation. However, later measurements showed that the periodicity of the SKR's modulation varies by as much as 1%, and so probably does not exactly coincide with Saturn’s true rotational period, which as of 2010 remains unknown. Inside the magnetosphere there are radiation belts, which house particles with energy as high as tens of megaelectronvolts. The energetic particles have significant influence on the surfaces of inner icy moons of Saturn.In 1980–1981 the magnetosphere of Saturn was studied by the Voyager spacecraft. As of 2010 it is a subject of the ongoing investigation by Cassini mission, which arrived in 2004.