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Home / News / Tags / magnetism
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According to a new research, released by the paleomagnetists at the Princeton University, our planet had the same magnetic-field structure in the early days. The two-pole model of today is believed by some to be an evolution of an ancient, unstructured one, and experts on both sides have been debating this vigorously... |
5 October 2009
03:28 GMT |
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A group of researchers from the Netherlands has proven scientifically, for the first time, that graphite can be a permanent magnet at room temperature. The find could have significant implications for new types of electronic devices, nanostructures, and various types of regular and bio-sensors, the team reports. The ... |
5 October 2009
02:32 GMT |
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Solar storms are some of the most dangerous phenomena that can hit our planet, and they can cause billions of dollars in damage over the course of just a few hours. They pose significant threats to the high-tech global infrastructure, the power grids, the satellite networks, as well as to the astronauts aboard the In... |
29 May 2009
05:36 GMT |
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Creating nanoparticles that have the ability to “guide” others into specifically designed positions is a thing that would undoubtedly open doors to the creation of a new class of devices. These future gadgets would have the ability to arrange themselves in the correct patterns inside spaces such as our ce... |
1 April 2009
09:42 GMT |
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Although first discovered nearly one century ago, superconductivity is still mostly a mystery when it comes to materials such as copper oxides and high temperature superconductors. However, while low temperature superconductors do not present too much importance regarding every day life applications, high temperature... |
14 July 2008
03:44 GMT |
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Tiny cameras used to see the inside of the body are far from a new concept today, although it is the first time when the movements of such a device can be controlled as it passes through the organs. The idea behind tiny cameras used for medical explorations is very simple. The patient swallows a small device inside w... |
9 June 2008
09:12 GMT |
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Many space missions today cannot be carried out mostly because the involved spacecrafts would have to fly in a precise formation, such as NASA's Terrestrial Planet Finder mission or the Laser Interferometer Space Antenna, which is supposed to detect distortions in the matter of space-time known as gravitational ... |
7 May 2008
03:11 GMT |
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Although they are not as visible as Saturn's beautiful rings of particles, Jupiter's rings were in fact discovered in 1979 during the first Voyager mission. Until 1995, when the Galileo spacecraft entered orbit around Jupiter, scientists had in fact no image of the thin, mysterious features around our solar... |
5 May 2008
08:29 GMT |
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Metamaterials have the unique capability of experiencing negative refractive indexes, thus literally refracting light through themselves without reflecting any to the source, therefore making any object hidden behind it invisible. This is not available only for light, acoustic waves can be also manipulated in similar... |
1 April 2008
11:09 GMT |
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Magnetic fields are routinely used in medical and scientific investigations to make observations of internal structures. For the first time researchers were able to create a three-dimensional of a magnetic field inside a solid, non-transparent structure through a technique using neutron polarization. The study was co... |
31 March 2008
02:54 GMT |
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While being the most massive object in the solar system, the Sun may also hide one of the biggest mysteries in the solar system. The Sun is an average-sized main sequence star about 5 billion years old, currently in its mid-life, with a surface temperature approximated at about 6,000 degrees Celsius. Much of the ligh... |
7 March 2008
09:42 GMT |
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Interstellar clouds of dust and gas pulled together by gravitational forces often experience instabilities, that can result in spectacular explosions such as that of a supernova. Furthermore, if the individual atoms that compose the respective cloud of gas behave like tiny magnets, the same outcome could be experienc... |
29 February 2008
10:24 GMT |
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You got the point, apparently the Earth has more than one North Pole! I'll put it like this: the North Pole can be anywhere you want it to be. It could be in Alaska, in the town called 'North Pole' for what I'm concerned, but then we would be deviating away from the story. For starters, there is t... |
29 February 2008
04:19 GMT |
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When it comes to weapons, the U.S. Navy never seems to have enough of them or to make them as deadly as they wish them to be. Yesterday, engineers employed by the U.S. government tested an improved railgun design that is able to output a total power of 10 megajoules, breaking the record of the previous railgun, which... |
1 February 2008
07:00 GMT |
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Magnetic materials are rather abundant on Earth, especially under the form of magnetite mineral. Recently, researchers from the Advanced Photon Source of Argonne National Laboratory, in collaboration with colleagues from the Carnegie Institution's Geophysical Laboratory, have demonstrated that the magnetic prope... |
30 January 2008
08:32 GMT |
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Superconducting materials levitating into strong magnetic field probably stand for the first image to come to mind when mentioning superconductivity and magnetism. No wonder! In all likelihood, it is the effect that has the longest list of possible applications. The superconductivity phenomenon involves cooling mater... |
14 January 2008
04:32 GMT |
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Some of our clothes are made out of materials that produce electric discharges as we unclothe. Sometimes, the electrical discharge is so powerful that one would can hear faint sounds produced by the electric spark. Basically, the process which takes place as we unclothe is no different by the lightning discharges exp... |
7 January 2008
11:10 GMT |
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This has left the astronomers deeply amazed. The data gathered by the Japanese Space Agency's Hinode spacecraft, launched in September 2006 for investigating sunspots and solar storms revealed surprising images. Saku Tsuneta, Hinode's chief scientist at the National Astronomical Observatory of Japan in Toky... |
20 September 2007
05:52 GMT |
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A recent discovery shows that nature can easily make the difference between the image and the mirror image of magnetic structures, on a nanoscale level.Physicists from Research Centre Jülich and the University of Hamburg have used both experimental work and computer simulations to detect a "homochiral" magnetic stru... |
11 May 2007
16:31 GMT |
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Antiferromagnetism is a different manifestation of magnetism, where the spins of electrons align in a regular pattern with neighboring spins pointing in opposite directions. The antiferromagnetic materials are relatively uncommon and their properties are still not fully understood.Unlike ferromagnets, which have be... |
7 May 2007
09:30 GMT |
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All it would take to get a good night's sleep would be to flip the switch of a device, and let magnetic waves guide us to Dreamland. Most mammals, birds, fish, as well as invertebrates such as the fruitfly Drosophila sleep. The state is characterized by a reduction in voluntary body movement, temporary blindne... |
2 May 2007
13:01 GMT |
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In physics, magnetism is one of the phenomena by which materials exert an attractive or repulsive force on other materials. Some well known materials that exhibit easily detectable magnetic properties are nickel, iron, some steels and the mineral magnetite. However, all materials are influenced to greater or lesser ... |
24 April 2007
11:06 GMT |
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