Related topics: magnetic field
Magnetism
hideIn physics, magnetism is one of the forces in which materials and moving charged particles exert attractive, repulsive force or moments on other materials or charged particles. Some well-known materials that exhibit easily detectable magnetic properties (called magnets) are nickel, iron, cobalt, gadolinium and their alloys; however, all materials are influenced to greater or lesser degree by the presence of a magnetic field. Substances that are negligibly affected by magnetic fields are known as non-magnetic substances. They include copper, aluminium, water, and gases.
Magnetism also has other definitions and descriptions in physics, particularly as one of the two components of electromagnetic waves such as light.
For more information about Magnetism, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with magnetic
Using superconducting probes to get a picture of what it's like inside CNTs
Nov 20, 2009 |
4.4 / 5 (9) |
0
(PhysOrg.com) -- "Carbon nanotubes are exciting for fundamental physics, and for potential technological applications," Nadya Mason tells PhysOrg.com. "However, we are generally limited in the way that we can study them. ...
Proposed Quantum Computer Consists of Billions of Electron Spins
Sep 09, 2009 |
4.5 / 5 (26) |
23
(PhysOrg.com) -- While researchers have already demonstrated the building blocks for few-bit quantum computers, scaling these systems up to large quantum computers remains a challenge. One of the biggest problems ...
Magnetic monopoles detected in a real magnet for the first time
Sep 03, 2009 |
4.6 / 5 (48) |
38
Researchers from the Helmholtz Centre Berlin, in cooperation with colleagues from Dresden, St. Andrews, La Plata and Oxford, have for the first time observed magnetic monopoles and how they emerge in a real ...
Physicists Propose a Method to Observe Dirac Monopoles
Jul 28, 2009 |
4.6 / 5 (18) |
5
(PhysOrg.com) -- For decades, scientists have been intrigued by the hypothetical existence of magnetic monopoles - particles with only a north or south magnetic pole, thus having a nonzero magnetic charge. ...
Researchers create 'synthetic magnetic fields' for neutral atoms
Dec 02, 2009 |
4.9 / 5 (15) |
2
(PhysOrg.com) -- Achieving an important new capability in ultracold atomic gases, researchers at the Joint Quantum Institute, a collaboration of the National Institute of Standards and Technology and the University ...
Spin polarization achieved in room temperature silicon
Nov 27, 2009 |
4.8 / 5 (21) |
0
(PhysOrg.com) -- A group in The Netherlands has achieved a first: injection of spin-polarized electrons in silicon at room temperature. This has previously been observed only at extremely low temperatures, ...
Superconductor magnet spacecraft heat shield being developed
Nov 26, 2009 |
4.8 / 5 (44) |
28
(PhysOrg.com) -- European space agencies and an aerospace giant are developing a new re-entry heat shield that will use superconductor magnets to generate a magnetic field strong enough to deflect the superhot ...
Cassini Captures Ghostly Dance of Saturn's Northern Lights (w/ Video)
Space & Earth / Space Exploration
Nov 24, 2009 |
4.9 / 5 (10) |
1
(PhysOrg.com) -- In the first video showing the auroras above the northern latitudes of Saturn, Cassini has spotted the tallest known "northern lights" in the solar system, flickering in shape and brightness ...
First black holes may have incubated in giant, starlike cocoons
Nov 24, 2009 |
4.2 / 5 (20) |
22
(PhysOrg.com) -- The first large black holes in the universe likely formed and grew deep inside gigantic, starlike cocoons that smothered their powerful x-ray radiation and prevented surrounding gases from ...
Intel wants a chip implant in your brain
Nov 23, 2009 |
4.4 / 5 (35) |
50
(PhysOrg.com) -- Computer chip maker Intel wants to implant a brain-sensing chip directly into the brains of its customers to allow them to operate computers and other devices without moving a muscle.
UCSB physicists move one step closer to quantum computing
Nov 20, 2009 |
5 / 5 (9) |
0
Physicists at UC Santa Barbara have made an important advance in electrically controlling quantum states of electrons, a step that could help in the development of quantum computing. The work is published ...
Computer Based on Insights From The Brain Moves Closer to Reality
Technology / Computer Sciences
Nov 18, 2009 |
4.6 / 5 (26) |
4
(PhysOrg.com) -- Today at SC 09, the supercomputing conference, IBM announced significant progress toward creating a computer system that simulates and emulates the brain's abilities for sensation, perception, ...
A bubbling ball of gas (w/ Video)
Space & Earth / Space Exploration
Nov 11, 2009 |
4.9 / 5 (18) |
7
The Sun is a bubbling mass. Packages of gas rise and sink, lending the sun its grainy surface structure, its granulation. Dark spots appear and disappear, clouds of matter dart up - and behind the whole thing ...
Magnetism Turns Drug Release On and Off
Nanotechnology / Bio & Medicine
Oct 30, 2009 |
5 / 5 (1) |
0
Many medical conditions, such as cancer, diabetes and chronic pain, require medications that cannot be taken orally, but must be dosed intermittently, on an as-needed basis, over a long period of time. A few delivery techniques ...
Magnetic mixing creates quite a stir (w/ Video)
Oct 27, 2009 |
4.8 / 5 (6) |
2
Sandia researchers have developed a process that can mix tiny volumes of liquid, even in complicated spaces.
