Space Physics Handout 2 : The Earth`s magnetosphere and
... The solar ultraviolet light which impinges on the atmosphere of the Earth ionises a fraction of the neutral atmosphere. At altitudes above 80km collisions in the atmosphere are too infrequent to result in rapid recombination and a permanent ionised population results, known as the ionosphere. Typica ...
... The solar ultraviolet light which impinges on the atmosphere of the Earth ionises a fraction of the neutral atmosphere. At altitudes above 80km collisions in the atmosphere are too infrequent to result in rapid recombination and a permanent ionised population results, known as the ionosphere. Typica ...
Magnetic flux - Purdue Physics
... Roentgen’a first "medical" Xray, of his wife's hand, taken on 22 December 1895” ...
... Roentgen’a first "medical" Xray, of his wife's hand, taken on 22 December 1895” ...
The Movement of Charged Particles in a Magnetic Field
... The origin of the Earth’s magnetic field is said to be a result of the dynamo effect, electric currents produced by the rotation of the iron-nickel core. The Earth’s magnetic field continually traps moving charged particles coming from the sun, called solar wind. ...
... The origin of the Earth’s magnetic field is said to be a result of the dynamo effect, electric currents produced by the rotation of the iron-nickel core. The Earth’s magnetic field continually traps moving charged particles coming from the sun, called solar wind. ...
OCR Physics P2 - Wey Valley School
... ionising radiations from space; fast moving particles create gamma rays when they hit atmosphere; spiral around the Earth’s magnetic field to the poles; cause the Aurora Borealis electrical current (moving electrical charges) in a coil creates a magnetic field may be the remains of a planet which co ...
... ionising radiations from space; fast moving particles create gamma rays when they hit atmosphere; spiral around the Earth’s magnetic field to the poles; cause the Aurora Borealis electrical current (moving electrical charges) in a coil creates a magnetic field may be the remains of a planet which co ...
Physics 1b - The Thomas Cowley High School
... Our Galaxy, the milky-way contains about 100,000 million stars, there are millions of galaxies in the Universe a.Red shift – Light from distant galaxies is red-shifted to longer wavelengths, the further the galaxy the greater the red shift. b.The Big Bang Red shift shows us that distant galaxies a ...
... Our Galaxy, the milky-way contains about 100,000 million stars, there are millions of galaxies in the Universe a.Red shift – Light from distant galaxies is red-shifted to longer wavelengths, the further the galaxy the greater the red shift. b.The Big Bang Red shift shows us that distant galaxies a ...
Components of Earth
... • Temperature decreases as altitude increases. (Particles become further apart) ...
... • Temperature decreases as altitude increases. (Particles become further apart) ...
Study Guide 8th Grade Ocean Motions In the Northern Hemisphere
... How long a star lives depends on its mass Parallax can’t be used on a star if the star is too far away A light-year is a unit of distance The distance between the crest of one wave of electromagnetic radiation and the crest of the next one is its wavelength When a star runs out of fuel, it cannot be ...
... How long a star lives depends on its mass Parallax can’t be used on a star if the star is too far away A light-year is a unit of distance The distance between the crest of one wave of electromagnetic radiation and the crest of the next one is its wavelength When a star runs out of fuel, it cannot be ...
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.