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Home / News / Tags / magnet
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Apple has updated one of the hundreds of technotes detailing possible issues iPhone users may encounter, this time revealing that the phone may experience a loss of signal, or reduced signal strength, if kept in a carrying case that uses magnets. Last Modified on September 30, 2009, Support article HT2342 bears the ... |
1 October 2009
08:58 GMT |
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Wireless operator AT&T announced recently the availability of Samsung SGH-a257 Magnet, an affordable messaging handset that was unveiled back in March, and which offers mobile phone users one of the most enhanced experiences when sending text messages, instant messages or e-mails while using its full-QWERTY keyboard.... |
12 May 2009
02:09 GMT |
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Samsung Mobile USA has recently posted on its Web site some info on the handsets that it plans to bring along at the CTIA Wireless 2009 show in Las Vegas, set to open its gates as soon as tomorrow. Among the devices that can be spotted on the company's site under the tag CTIA 2009 we can count the Samsung Propel... |
31 March 2009
06:37 GMT |
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A three-car version of the Superconducting Magnetically Levitated (MagLev) train achieved the world record of 581 km/h (361 mph) for a rail vehicle in December 2003, a record that still stands today. The vehicle relies on superconducting magnets and linear motor technology, which rule out the frictional forces genera... |
1 November 2008
05:11 GMT |
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A recent study sheds new light on the early years of the solar system, and comes to indicate that its whole evolution must be reconsidered. According to the findings, during the first 3 million years, the system was full of miniature planets, called planetesimals, that sported tiny molten cores and solid crusts, and ... |
31 October 2008
05:31 GMT |
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Scientists from the McGill University in Montreal, Quebec, Canada, believe they have stumbled upon a novel state of matter while experimenting with electron crystals, like those found in regular transistors. Using powerful magnetism and extremely low temperatures, they caused the bidimensional crystal to act very od... |
23 October 2008
09:53 GMT |
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The latest statements from CERN officials shed more light on the Large Hadron Collider glitch that happened more than one month ago, on September 19, and indicate that the device will not be fully operable sooner than May or June of next year. It seems that the electrical failure caused irreversible damage to 29 of ... |
21 October 2008
03:44 GMT |
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Experts from the National High Magnetic Field Laboratory, located in Tallahassee, close to Florida State University, are currently undergoing operations required for the creation of the most potent magnet built to date. The Los Alamos National Laboratory in New Mexico will house the object 2 million times more powerf... |
9 September 2008
06:09 GMT |
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Sectors of the industry making use of high-performance motors and other power generation devices are often dependent on compounds with exceptional magnetic and physical properties. Usually, when this is the case, Samarium Cobalt is the material of choice. The problem is that this compound is very difficult and expens... |
30 July 2008
03:47 GMT |
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Magnetos are generally used to generate extremely high voltages for small internal combustion engines, such as those equipping chainsaws, small cars and even small airplanes. The engine of the Cessna 152 airplane for example, has an ignition system using a magneto to increase engine reliability. The output voltage ge... |
19 May 2008
06:52 GMT |
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Bats exert a certain magnetism upon many nature lovers. But researchers from the Universities of Leeds and Princeton have found that they actually use electro-magnetism, due to an 'internal compass', enabling them to navigate; they tested Big Brown bats released 20 km (12 mi) north of their home roost and ... |
27 February 2008
03:59 GMT |
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It's finally out on the market. Behold the hovering chair! We can at last literally float the stress away in the new unique suspended lounger. In fact that's its name, "The Lounger". The British company Hoverit Ltd. has recently presented a chair that can act as a bed as well, which defies gravity by floati... |
18 January 2008
02:49 GMT |
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Being too sad can drive one to commit suicide, but taking drugs against it (antidepressants) means killing your sex life. Antidepressants type SSRIs (Selective Serotonin Reuptake Inhibitors like Prozac (Fluoxetine), Paxil, and Zoloft (Sertraline)) increase serotonin levels in the brain, which causes sexual dysfunctio... |
27 November 2007
04:38 GMT |
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The magnet produced by Engineers at Florida State University's National High Magnetic Field Laboratory has the capability of producing a magnetic field more than 25-30 Tesla, using an input lower than 28 MW direct current power.Magnetism is a key component in a large number of modern technologies, including Magn... |
1 November 2007
06:26 GMT |
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Nanotechnology is full of surprises and new applications are discovered every day. One of the most unusual is the recent experiment of a team of scientists who were able to make a magnet change the color of a liquid, turning it from coffee-brown to orange, then green and finally dark blue.The liquid is actually a so... |
6 July 2007
09:02 GMT |
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A gravitomagnetic field is an approximation to the Einstein field equations for general relativity, valid under certain conditions, a reformulation of gravity described as a so far fictitious force around a moving, gravitating body.Much like a moving electric charge that creates a magnetic field, a gravitomagnetic f... |
4 June 2007
05:49 GMT |
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Superconductors are a class of materials that display exactly zero electrical resistance and the exclusion of the interior magnetic field (the Meissner effect) at extremely low temperatures, usually below -140 degrees Celsius. They are used in many applications, like MRI medical imaging scanners, levitating trains a... |
1 June 2007
05:45 GMT |
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New findings prove that nanoscale magnets and their chirality could lead to the fabrication of greatly improved magnetic storage devices for computers, with the help of the emerging field of spintronics.Chirality is an asymmetry property important in several branches of science. An object or a system is called chira... |
30 May 2007
03:37 GMT |
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Have you ever heard of magnets making noise? It's called the Barkhausen effect and it's a name given to the noise in the magnetic output of a ferromagnet when the magnetizing force applied to it is changed.It's easy for scientists to measure the minute thermal fluctuations in the magnetization of ferr... |
24 May 2007
09:24 GMT |
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Ancient Greeks employed magnetized metal rings against arthritis. In the 15th century, the famous physician Paracelsus thought that magnetic energies induce self-healing of the body. In the Middle Ages, magnets were employed against pain, gout, arthritis, poisoning, respiratory problems, circulatory problems, rheumat... |
24 May 2007
06:54 GMT |
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Electron correlation is a relatively new concept and it deals with mutual dependence between electrons, summarizing the effects of the repulsion forces acting in the spaces between electrons. It specifically handles the way this repulsion influences the spatial and dynamical motion of the electrons. The concept is ... |
15 May 2007
10:26 GMT |
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The fastest enterprise hard disks spin at 15,000 RPM, and can achieve sequential media transfer speeds of up to and beyond 110 MB/s.Modern hard drives use the spinning motion of a disk to move magnetic regions past a component that can read and change the data encoded on these regions. They record data by magnetizing... |
12 May 2007
05:24 GMT |
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Present information technologies rely on electrons for carrying process data and information, but, as silicon technology is reaching its physical limits, researchers are looking for alternatives. Another emerging field is "spintronics", that deals with the use of the "spin" of an electron for storing, processing an... |
28 April 2007
05:50 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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It will be the world's strongest magnet for neutron experiments, eclipsing the 15-tesla system now in use.The new, high-field magnet, which is based on the magnet lab's Series-Connected Hybrid concept, will be housed at the Berlin Neutron Scattering Center. The magnet will produce a magnetic field between ... |
4 April 2007
06:48 GMT |
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