Earth as a Magnet
... sun towards our planet. • Solar wind is a stream of charged particles moving at high speeds from the sun to the earth. • These solar winds give the magnetosphere its shape and is constantly reshaping it as the Earth orbits the sun and rotates on its axis. • Most particles from this wind cannot get t ...
... sun towards our planet. • Solar wind is a stream of charged particles moving at high speeds from the sun to the earth. • These solar winds give the magnetosphere its shape and is constantly reshaping it as the Earth orbits the sun and rotates on its axis. • Most particles from this wind cannot get t ...
Notes: Earth`s Atmosphere PowerPoint
... Does temperature increase or decrease as you move up through the stratosphere? ...
... Does temperature increase or decrease as you move up through the stratosphere? ...
Earth`s Layers The Earth layers are: the crust, the mantle, the outer
... Just under the crust is the mantle. It is composed mainly of ferro-magnesium silicates. It is about 2900 km thick, and is separated into the upper and lower mantle. This is where most of the internal heat of the Earth is located. ...
... Just under the crust is the mantle. It is composed mainly of ferro-magnesium silicates. It is about 2900 km thick, and is separated into the upper and lower mantle. This is where most of the internal heat of the Earth is located. ...
Radioactivity and man
... Radioactivity is as old as the Universe and is present everywhere: in the stars, in the Earth and in our own bodies. In fact, man has been exposed to radiation since when he appeared on Earth. Radioactivity was discovered at the end of the 19th Century thanks to the work of Henry Becquerel and Pierr ...
... Radioactivity is as old as the Universe and is present everywhere: in the stars, in the Earth and in our own bodies. In fact, man has been exposed to radiation since when he appeared on Earth. Radioactivity was discovered at the end of the 19th Century thanks to the work of Henry Becquerel and Pierr ...
PHY418 Particle Astrophysics - Particle Physics and Particle
... specific primary identification • “Heavy” and “light” primaries ...
... specific primary identification • “Heavy” and “light” primaries ...
High Energy Observational Astrophysics
... X-rays from about 12 keV to 120 keV are classified as "hard" X-rays ...
... X-rays from about 12 keV to 120 keV are classified as "hard" X-rays ...
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.