Examples from the Web for magnetism
The powerful forces of gravity and magnetism channel matter into huge flattened spinning platters known as accretion disks.
All-American, with just enough sex appeal to maintain the magnetism.
We were all just blown away by his charisma and magnetism and his funniness.
The way Melon gets around the line at registration is particularly ingenious, thanks to the magnetism of The Boss.
“You find yourself prey to his magnetism,” said someone who worked closely with him.
After the discovery of the electric battery, men tried to discover a relation between the electric current and magnetism.The Story of Great Inventions|Elmer Ellsworth Burns
Mr. Benson's "charm" is what the virtuoso feels as magnetism.
But do not let us be led away into thinking that magnetism can take the place of hard work.
There was magnetism in his personality, and he was soon welcomed among the socially distinguished in both seminary and city.Frank H. Nelson of Cincinnati|Warren C. Herrick
It will also have an error in it due to the magnetism of the iron in the ship.Lectures in Navigation|Ernest Gallaudet Draper
British Dictionary definitions for magnetism
Derived Formsmagnetist, noun
Science definitions for magnetism
A Closer Look
Magnetism is intimately linked with electricity, in that a magnetic field is established whenever electric charges are in motion, as in the flow of electrons in a wire, or the movement of electrons around an atomic nucleus. In atoms, this invisible field consists of closed loops called lines of force that surround and run through the atom. Magnetic regions where lines of force come together densely are called north and south poles. In substances in which the magnetic fields of each atom are aligned, the magnetic field causes the entire substance to act like single magnet-with north and south poles and a surrounding magnetic field. Permanent magnets are made of substances that retain this alignment. If a magnet is cut in two, each piece becomes a separate magnet with two poles. A coil of wire wrapped around an iron core can be made magnetic by running electric current through it; the looping electrons then create a magnetic field in just the same way as the spinning electrons in individual atoms. As long as current flows, the coil remains magnetized. Such magnets, called electromagnets, are used in many devices such as doorbells and switches. The connection between electric and magnetic fields is not one of cause and effect, however. Einstein showed that both the magnetic and electric fields are part of a single electromagnetic field, described by a single mathematical object called a tensor. Observers in different reference frames will not observe the same separate values for electric and magnetic fields, but will observe identical electromagnetic tensors. Whether or not magnetic monopoles (elementary particles carrying an isolated north or south magnetic charge, analogous to positive or negative electric charge) actually exist remains unknown; though they are predicted by some theories, none have been detected.
Culture definitions for magnetism
A fundamental property of some materials (for example, iron) and electrical currents (see also current) by which they are capable of exerting a force on magnets. (See electromagnet, magnet, and magnetic field.)