Related Experiment Video

Updated: Jul 12, 2026

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
06:14

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

Published on: July 30, 2020

Magnetospheres of the galilean satellites

M G Kivelson, J A Slavin, D J Southwood

    Science (New York, N.Y.)
    |August 3, 1979
    PubMed

    More Related Videos

    Simulation of the Planetary Interior Differentiation Processes in the Laboratory06:04

    Simulation of the Planetary Interior Differentiation Processes in the Laboratory

    Published on: November 15, 2013

    Scattering And Absorption of Light in Planetary Regoliths11:34

    Scattering And Absorption of Light in Planetary Regoliths

    Published on: July 1, 2019

    Related Concept Videos

    Magnetism01:30

    Magnetism

    Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows that all magnets have two poles: one is labeled north (N) and the other south (S). Magnetic poles repel if they are alike and attract if unlike. Moreover, both poles of a magnet attract unmagnetized pieces of iron.
    An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
    Magnetostatic Boundary Conditions01:28

    Magnetostatic Boundary Conditions

    An electric field suffers a discontinuity at a surface charge. Similarly, a magnetic field is discontinuous at a surface current. The perpendicular component of a magnetic field is continuous across the interface of two magnetic mediums. In contrast, its parallel component, perpendicular to the current, is discontinuous by the amount equal to the product of the vacuum permeability and the surface current. Like the scalar potential in electrostatics, the vector potential is also continuous...
    Magnetic Field Lines01:19

    Magnetic Field Lines

    The representation of magnetic fields by magnetic field lines is very useful in visualizing the strength and direction of the magnetic field. Each of the magnetic field lines forms a closed loop. The field lines emerge from the north pole (N), loop around to the south pole (S), and continue through the bar magnet back to the north pole.
    Magnetic field lines follow several hard-and-fast rules:
    Energy of a Satellite in a Circular Orbit01:11

    Energy of a Satellite in a Circular Orbit

    Thousands of artificial satellites orbit the Earth every day at various distances from the Earth. Satellites that orbit the Earth below an altitude of 1,600 km are considered to be orbiting in low-Earth orbit (LEO). Research satellites and Earth observation satellites are usually placed in LEO, and mostly orbit the Earth in elliptical orbits. Navigation satellites are placed in medium-Earth orbit (MEO), ranging from 2,000 km to 36,000 km from the surface of the Earth. Meanwhile, communication...
    Magnetic Fields01:28

    Magnetic Fields

    A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
    A magnetic field is defined by the force that a charged particle experiences...
    Circular Orbits and Critical Velocity for Satellites01:16

    Circular Orbits and Critical Velocity for Satellites

    The Moon orbits around the Earth. In turn, the Earth (and other planets) orbit the Sun. The space directly above our atmosphere is filled with artificial satellites in orbit. One can examine the circular orbit, the simplest kind of orbit, to understand the relationship between the speed and the period of planets and satellites with respect to their positions and the bodies that they orbit.
    Nicolaus Copernicus (1473-1543) first suggested that the Earth and all other planets orbit the Sun in...