Physical origin
... immediately opposed by currents, so the flux through a given volume of fluid could not change. As the fluid moved, the magnetic field would go with it. The theorem describing this effect is called the frozen-in-field theorem. Even in a fluid with a finite conductivity, new field is generated by stre ...
... immediately opposed by currents, so the flux through a given volume of fluid could not change. As the fluid moved, the magnetic field would go with it. The theorem describing this effect is called the frozen-in-field theorem. Even in a fluid with a finite conductivity, new field is generated by stre ...
Section I. SpuItering of ices ASTROPHYSICAL IMPLICATIONS OF
... the edge of the major A ring, so that there do not appear to be significant effects by the particles on the principal rings of Saturn. However, galactic cosmic rays do strike these ring particles, producing nuclear interactions and high energy protons and electrons from the decay of produced neutron ...
... the edge of the major A ring, so that there do not appear to be significant effects by the particles on the principal rings of Saturn. However, galactic cosmic rays do strike these ring particles, producing nuclear interactions and high energy protons and electrons from the decay of produced neutron ...
AMPTE: NOTES ON THE INITIAL ... WORK IN PROGRESS _ _ _ _ _... _
... comet for 12 years. It was due to appear in two hours-behind the clouds. "It's not really important if I see the comet," said Haerendel, speaking to a motley and bleary-eyed group of nonscientists gathered atop Kitt Peak. The Christmas comet had attracted two dozen journalists and a lO-year-old name ...
... comet for 12 years. It was due to appear in two hours-behind the clouds. "It's not really important if I see the comet," said Haerendel, speaking to a motley and bleary-eyed group of nonscientists gathered atop Kitt Peak. The Christmas comet had attracted two dozen journalists and a lO-year-old name ...
Physics 1 notes 4-11-13 NOVA earth`s magnetic field
... Is earth’s magnetic field weakening? Will it disappear in a few thousand years? Earth as a molten iron/nickel core that generates a magnetic field. But in recent years, the magnetic field seems to be fading and may disappear in about one thousand years. Magnetism seems like magic attraction or ...
... Is earth’s magnetic field weakening? Will it disappear in a few thousand years? Earth as a molten iron/nickel core that generates a magnetic field. But in recent years, the magnetic field seems to be fading and may disappear in about one thousand years. Magnetism seems like magic attraction or ...
Faraday Inquiry Problems File
... generator make alternating current? What change would have to be made to make direct current? (Hint a generator that makes direct current is called and alternator…) ...
... generator make alternating current? What change would have to be made to make direct current? (Hint a generator that makes direct current is called and alternator…) ...
Radiation Processes in High Energy Astrophysics
... two processes are tightly coupled - both have large crosssections and work effectively everywhere in the Universe from compact objects like pulsars, Black Holes and Active Galactic Nuclei to large scale structures as clusters of galaxies IC - production process - no energy threshold PP - absorption ...
... two processes are tightly coupled - both have large crosssections and work effectively everywhere in the Universe from compact objects like pulsars, Black Holes and Active Galactic Nuclei to large scale structures as clusters of galaxies IC - production process - no energy threshold PP - absorption ...
magnetic field
... The ancient Greeks used a stone substance called “magnetite.” They discovered that the stone always pointed in the same direction. Later, stones of magnetite called “lodestones” were used in navigation. ...
... The ancient Greeks used a stone substance called “magnetite.” They discovered that the stone always pointed in the same direction. Later, stones of magnetite called “lodestones” were used in navigation. ...
Van Allen radiation belt
A radiation belt is a layer of energetic charged particles that is held in place around a magnetized planet, such as the Earth, by the planet's magnetic field. The Earth has two such belts and sometimes others may be temporarily created. The discovery of the belts is credited to James Van Allen and as a result the Earth's belts bear his name. The main belts extend from an altitude of about 1,000 to 60,000 kilometers above the surface in which region radiation levels vary. Most of the particles that form the belts are thought to come from solar wind and other particles by cosmic rays. The belts are located in the inner region of the Earth's magnetosphere. The belts contain energetic electrons that form the outer belt and a combination of protons and electrons that form the inner belt. The radiation belts additionally contain less amounts of other nuclei, such as alpha particles. The belts endanger satellites, which must protect their sensitive components with adequate shielding if their orbit spends significant time in the radiation belts. In 2013, NASA reported that the Van Allen Probes had discovered a transient, third radiation belt, which was observed for four weeks until destroyed by a powerful, interplanetary shock wave from the Sun.