Junior Science Refresher

Junior Science Refresher

Junior Science Refresher this is science magazine in india Published this article page no  57 Earths magnetic field which exists due to metal and liquid outer core about 3000 km below the surface creates electric currents that generate and change our electromagnetic fields. o The surface magnetic field which spans around tens and thousands of kilometers away from the earth protects us from cosmic radiations as well as it aids the communication of satellites and spacecraft. NEW SIMULATION CODE HELPS STUDY ELECTRIC FIELD STRUCTURE IN EARTHS MAGNETOSPHERE  Indian Institute of Geomagnetism an autonomous institution of the Department of Science and Technology has developed a simulation code capable of studying electric field structures in earths magnetosphere. o It will help advance the knowledge of plasma waves that are useful in planning future space missions. o It can also lead to precisely controlled fusion laboratory experiments for energy needs of humanity. Controlled fusions use magnetic fields to confine a hightemperature plasma of deuterium and tritium. Earths magnetosphere  It is a region surrounding Earth where the dominant magnetic field is of Earth rather than of interplanetary space.  It is formed by interaction of solar winds [which carries with it a solar magnetic field called an Interplanetary Magnetic Field] with Earths magnetic field.  Earths magnetosphere contains plasma and plasma processes have the ability to hamper the working of a number of satellites that have been placed in orbit in the magnetospheric region. o Plasma is a hot ionized gas consisting of approximately equal numbers of positively charged ions and negatively charged electrons. Plasma is the fourth state of matter.  Almost 99% of matter in the universe is in the form of plasma junior science refresher magazine buy.

Junior Science Refresher