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Technology Research News January 28, 2004 |
Nanorings promise big memory Researchers have found a way to cause magnetic cobalt nanoparticles to spontaneously assemble into rings that are less than 100 nanometers across. Because the molecule is small, memory made from it could hold a great deal of information.  |
Chemistry World April 30, 2008 Lewis Brindley |
Chemical compass clue to migration mystery Trying to identify the mysterious innate compass that many animals use to navigate the globe, chemists at the University of Oxford, UK, have shown for the first time that the Earth's magnetic field can influence the outcome of a chemical reaction.  |
Chemistry World July 20, 2011 Josh Howgego |
Magnets turn up the heat on tumours Claims that magnets can cure cancer might sound like quackery. But French researchers have harnessed iron oxide structures from bacteria to selectively kill tumour cells using an alternating magnetic field.  |
Chemistry World July 21, 2011 Serin Dabb |
Small Wires Swim Through Serum for Drug Delivery US researchers have made nanowires that can be propelled through liquids with an external magnetic field. The wires could be used to deliver drugs in the human body.  |
Reactive Reports Issue 67 David Bradley |
Attractive Changing Colors Chemists have discovered that a simple magnet can be used to change the color of nanoparticles of iron oxide in aqueous suspension.  |
Technology Research News December 11, 2002 Eric Smalley |
Microscopic mix strengthens magnet Magnets are usually an either-or proposition. They either generate a strong magnetic field or they hold up well in the presence of external magnetic fields. A method that mixes the two types of magnets at the nanoscale could pave the way for smaller electric motors and generators.  |
CIO March 15, 2001 Sara Shay |
Giving Direction The history of the compass.  |
Technology Research News April 21, 2004 |
Magnets Align Nanotubes in Resin Carbon nanotubes have great potential as components of new materials but aligning the tiny tubes can be tricky. Researchers from the Georgia Institute of Technology and Florida State University have developed a way to orient the nanotubes in a polymer mix using a magnetic field.  |
Geotimes July 2006 Kathryn Hansen |
Ship Logs Record Earth's Magnetism New information gleaned from old ships' logs is now leading to a better understanding of the magnetic field's past strength, which is turning out to be more erratic than some scientists previously thought.  |
Geotimes June 2007 Kathryn Hansen |
So, When Did Earth Become Attractive? Ever since Earth's protective field was discovered in 1958, scientists have been wondering when did the planet grow up and become attractive?  |
IEEE Spectrum August 2011 Hadjipanayis & Gabay |
The Incredible Pull of Nanocomposite Magnets Nanotechnology could make rare earth magnets even stronger.  |
Technology Research News October 6, 2004 |
Design rules build on self-assembly Researchers at the University of Michigan have developed computer simulations that promise to speed the process of finding ways to build practical nanostructures, including precisely-structured materials, electronic and optical components, and chemical sensors.  |
Technology Research News July 13, 2005 |
Magnetics Drives Particle Patterns Researchers have devised a way to use electric and magnetic fields to assemble magnetic microparticles into a wide variety of patterns, including clusters, rings, chains and networks.  |
Chemistry World July 20, 2012 Simon Hadlington |
New type of chemical bond around dwarf stars The work, led by Trygve Helgaker at the University of Oslo in Norway, not only provides insights into fundamental aspects of electronic interactions with magnetic fields, but also sheds light on the exotic chemistry that exists in stellar environments.  |
Popular Mechanics March 2003 Paul Eisenstein |
World's Most Powerful Magnet The "magnetar," or magnetic neutron star known as Soft Gamma Repeater 1806-20, is the most powerful known magnetic object in the universe. While it's unlikely anything man-made will ever come close to the power of a magnetar, it's not for lack of trying.  |
Chemistry World July 13, 2007 Tom Westgate |
Colourful Colloids A simple mixture of iron oxide, a polymer and water can take on any color simply by applying a magnetic field.  |
Technology Research News July 30, 2003 |
See-through magnets hang tough Researchers from the Independent University of Barcelona (UAB) and the University of Zaragoza in Spain have found a way to form transparent, durable, lightweight magnets that maintain their magnetism in magnetic fields and high temperatures.  |
Chemistry World February 28, 2006 Jon Evans |
Magnetic Appeal of Shape-Change Polymer Polymer scientists developed polymers that change shape in response to a magnetic field by incorporating magnetic iron(III)oxide nanoparticles into a shape-memory polyetherurethane compound known as TFX.  |
Chemistry World February 18, 2009 Lewis Brindley |
Nanomaterials Blossom US researchers have found a new way to use magnetic fields to encourage nanoparticles to self-assemble into unique shapes.  |
AskMen.com David Lee |
How To: Read A Compass Few items are more deserving of a spot in the outdoor enthusiast's backpack than a compass.  |
Technology Research News November 3, 2004 |
Square Rings Promise Reliable MRAM Researchers are working on magnetic random access memory chips that hold as much data as standard electronic memory chips. The key to a promising design is a nanowire bent into a circle.  |
Chemistry World July 25, 2014 Emma Stoye |
Magnetic nanocubes self-assemble into spirals Scientists have been coaxing nano-sized cubes of magnetite (Fe 3O 4) into larger, more complex structures like helices without using a template by exposing them to a magnetic field.  |
Geotimes January 2007 Nicole Branan |
Heat Flow Causes Magnetic Reversals Earth's magnetic field has done hundreds of somersaults over the last few billion years. A new study sheds some light on what causes the geomagnetic field to flip.  |
Geotimes May 2004 Sara Pratt |
Deciphering Planetary Magnetism Neptune and Uranus both have unusual magnetic fields that tilt at a 60-degree angle toward their equators. Scientists are now able to model the processes that shape the planets' magnetism.  |
Chemistry World November 21, 2012 James Urquhart |
Two-faced particles self-assemble in sync US scientists have synchronized the motion of colloidal magnetic spheres with a rotating magnetic field and found that the particles self-organize into micrometer-sized tubes.  |
Reactive Reports December 2003 David Bradley |
Airy magnets Spanish researchers have created a new type of magnetic material that is ultra-light and transparent. The airy magnets could have applications in flat screen displays and magneto-optical memory devices for computers.  |
Chemistry World June 27, 2010 Simon Hadlington |
Nanoparticles allow remote control of cells In an experiment reminiscent of the mind-control rays that featured prominently in B-movies from the 1950s, scientists in the US have used a magnetic field to alter the behavior of an animal.  |
Chemistry World November 22, 2012 Jon Cartwright |
Magnesium oxide might be liquid in super-Earths There may be more planets outside our solar system with protective magnetic fields than previously thought. That's the implication of a US study, which has demonstrated that the common planetary mineral magnesium oxide turns into a metallic liquid at high pressure.  |
CIO July 15, 2003 John Edwards |
Sensitive Sensors Get those gigs. The State University of New York at Buffalo's Mechanical and Aerospace Engineering Department has developed sensors that could boost hard drive capacity by a factor of 1,000 -- without also driving up price.  |
IEEE Spectrum September 2007 Joshua J. Romero |
Magnetic Storage Taken to the Atomic Scale International team of scientists learns to read and write data on islands of atoms.  |
Technology Research News March 9, 2005 |
Avalanches up Disk Storage Researchers have constructed a spin-valve transistor that is more sensitive to microscopic magnetic fields than the devices that read today's commercial hard drives.  |
Technology Research News March 26, 2003 |
Hydrogen yields smaller nanowires Researchers from City University of Hong Kong in China have produced silicon wires that are smaller than any made before.  |
Technology Research News August 10, 2005 |
Templates yield nano branches Making highly-branched nanoscale tubes and wires is a matter of easing off the juice by the right amount at the right time.  |
Technology Research News December 31, 2003 |
Shape key to strong sensors Researchers have found a possible explanation for why a pair of semiconducting compounds -- mixes of silver and selenium or tellurium -- are strong magnetic sensors over a wide range of magnetic field strengths.  |
Technology Research News October 8, 2003 |
Process orders nanowire arrays Harvard University researchers have found a way to neatly layer and pattern rows of nanowires.  |
Chemistry World October 22, 2013 Simon Hadlington |
Virtual molds cast colloid Blue Mosque A way to direct colloids to self-assemble in an almost infinite variety of configurations has been devised. The technique relies on the creation of a pre-determined pattern of magnetic fields to generate a 'virtual mold' to dictate the final position of the particles.  |
Chemistry World September 17, 2008 Hayley Birch |
Colloids twist like DNA French scientists have used magnetic colloids to make self-assembling, helical structures reminiscent of DNA  |
Technology Research News January 1, 2003 Kimberly Patch |
Aligned fields could speed storage Researchers from three institutes in Germany and Russia have found a material whose electric and magnetic domains line up together. The work could bring together the currently separate fields of magnetic and electronic data storage, which would give both methods more flexibility.  |
InternetNews August 3, 2010 |
Tech Firms Split on Paying for Security Flaws Some major IT firms have made it a standard practice to pay security researchers for bringing vulnerabilities to their attention, while others have a strict prohibition against it. What accounts for the divide?  |
Chemistry World November 17, 2015 Emma Stoye |
Magnetic 'compass' protein found in fruit flies The rod-shaped protein can align with a magnetic field, and forms a complex with light-sensitive cryptochrome proteins, which scientists have long suspected may be involved in magnetoreception.  |
Technology Research News October 22, 2003 |
Process prints nanoparticles Researchers have coaxed tiny particles of gold, silver and carbon to assemble into patterns on silicon wafers over areas as large as a square centimeter by using electrical charge patterns to attract and position the nanoparticles.  |
Chemistry World July 19, 2011 Jon Cartwright |
Magnetic Sponge Can Squeeze Itself Out Researchers in Japan and Singapore have created a sponge that can wring itself out upon application of a magnetic field.  |
Scientific American May 8, 2006 Graham P. Collins |
Chaos in the Crater Welcome to the Vredefort Crater, a real Bermuda Triangle about 100 kilometers southwest of Johannesburg. It is the oldest and largest impact remnant on the planet, created by an asteroid about two billion years ago.  |
Technology Research News July 2, 2003 |
Process puts nanotubes in place University of California at Berkeley researchers have found a way to grow silicon nanowires and carbon nanotubes directly on delicate microelectronic components.  |
Outside February 2003 Brad Wetzler |
The Wild File Is there a magnetic pull in space? If so, in what direction would a compass point?... Why are there such individualized names for groups of animals: gaggles of geese, packs of wolves, herds of sheep, etc.?... Why do cows have four teats? They rarely give birth to quads.  |
The Motley Fool December 24, 2010 Balachander Suriyanarayanan |
IBM's "Racetrack" Closer to Starting Its Engine A memory technology that could enable a handheld device like an MP3 player to store about 3,500 movies or 500,000 songs is a step closer to commercial viability, researchers at IBM say.  |
Chemistry World November 28, 2007 Richard Van Noorden |
Magnetic Field Detectors for Less Than a Penny Cheap electronic components industrially manufactured in their millions every year are also smart materials that can sense magnetic fields without any external power supply, UK scientists have discovered.  |
Chemistry World July 26, 2006 Victoria Gill |
Reversible Glue `De-Bonds' at the Touch of a Button A new kind of superglue that uses nanoscale magnetic particles to bond and de-bond on command has been developed.  |
Geotimes September 2005 Naomi Lubick |
Supercomputer Models Earth's Magnetic Field A team of researchers has made a step toward modeling the Earth's chaotic magnetic field behavior using one of the largest supercomputers on the planet to run the most realistic model yet.  |
IEEE Spectrum September 2006 Charles Q. Choi |
Nanomagnets to the Rescue If, as seems possible, magnetic nanocomposites can be manufactured directly on chips, engineers could design computers that are smaller and, equally important, cooler than anything available today.  |