magnets

magnets

This photo clearly shows that like poles of a magnet repel each other. This effect can be quite strong. In this image, as a child holds down the top magnet down with their fingers, it looks like the top magnet is floating due to the...

Iron filings are used in this picture to show the path of magnetic field lines created by a magnet.

This spectacular photo shows an interesting formation created by powder steel on a magnet. The powder steel forms spikes pointing in all directions away from the end of the magnet.

An image of the Spacecraft Magnetic Test Facility.

Illustration of magnetic repulsion field lines.

Illustration of Earth's magnetic field lines.

This site from Integrated Publishing provides three different examples of theories of magnetism.

magnets

Illustration of magnetic attraction field lines.

This site from the Georgia State University provides a good overview of ferromagnetic materials, introducing concepts such as magnetic domains, hysteresis, the curie temperature, and magnetostriction.

This site from the Georgia State University provides a good overview of ferromagnetic materials, introducing concepts such as magnetic domains, hysteresis, the curie temperature, and magnetostriction.

A great introduction to magnetic domains, including pictures which illustrate the effect on domains caused by external applied magnetic fields.

From an online teacher demonstration book. Includes a description and explanation of five demonstrations on a variety of magnetism topics. Interesting and captivating demos.

We rely on the sun to sustain life, but there are many things about the sun that the human eye is unable to detect. This media rich site offers a spectacular look at coronal mass ejections, magnetic loops, and solar flares. Interactive...

An online activity which illustrates the magnetic property of diamagnetism associated with water. Contains a simple procedure and then a good explanation of the magnetic interactions that were displayed by the grapes.

Simple line graph showing the inverse relationship between the amount of electrical resistance and the amount of work possible.

An interesting site that delves into how forensic scientists perform minimally invasive autopsies using state of the art technology.

The aurora borealis (also known as the northern lights) is a spectacular light display that can be seen at night in regions near the North Pole (auroras can also be seen near the South Pole). Auroras occur because of charged particles...

A map from 1903 of New Hampshire showing the capital of Concord, counties and county seats, principal cities and towns, railroads, rivers, and mountain ranges. "New Hampshire, one of the New England States of the American Union, lies...

Laboratory of George Ellery Hale, inventor of the spectroheliograph, with which he made his discoveries of the solar vortices and magnetic fields of sun spots.

From ABC News in Science, this article discusses research connected to the tracking of several big brown bats as they headed back to their homes. The experiment utilized several magnetic fields in attempts to disrupt the paths taken by...

(1791-1867) British scientist, chemist, physicist, and philosopher who greatly contributed to the fields of electromagnetism and electrochemistry. His main discoveries include the magnet field, electromagnetic induction, diamagnetism,...