From PESWiki

A directory of technologies and resources relating to magnets. See also Directory:Magnetism.

Videos

"I built these spheres from this new toy I got, and after a while I managed to hang them from each other. I then spun them each in the opposite direction and watched them go. They keep going for a very long time and in the last few minutes they slow down, stop, pause for a few seconds, start going again, sometime in the oposite direction, its very cool!!!" (YouTube; TOMERICO1; August 14, 2006)

Types of Magnets

• Organic Magnets Open Vast Possibilities - Researchers at the University of Victoria have discovered new lightweight magnets that could be used in making everything from extra-thin magnetic computer memory to ultra-light spacecraft parts. "Suppose you want to make a particular shape of magnet — these magnets could be dissolved in solution and shaped into a different form." (PESN; Jan. 17, 2007)
  

Research and Development

• Scientist Develops Programmable Magnets - Researcher and inventor Larry Fullerton of Correlated Magnetics has developed a process to "program" magnets so that they will attract or repel only another specifically programmed magnet. The process works by changing materials at the molecular level. Many potentially useful applications never before possible with conventional magnets. (Huntsville Times; Oct. 5, 2009 )
  

• Scientists find quick method to make magnets - Northeastern University researchers have broken new ground with an innovative invention of a rapid, high-volume and cost-effective one-step method for producing pure Samarium Cobalt rare earth permanent magnet materials. (PhysOrg; July 29, 2008)
  

Vulnerabilities

• 
  Environment / Magnets > Vulnerabilities >
  Inside China's secret toxic unobtainium mine - Raising questions about the world's source of Neodymium ... "I was the first Western journalist to set foot inside the mine. What I saw at Baiyun Obo and the poisoned refineries it feeds raises disturbing questions about the future we are buying into - and who will control it." (Daily Mail; UK; Jan. 10, 2010)
  

• Concern as China clamps down on rare earth exports - Neodymium, used in permanent magnets, is one of 17 metals crucial to green technology. There’s only one snag – China produces 97% of the world’s supply. And they’re not selling. During the past seven years it has reduced by 40 per cent the amount of rare earths available for export. (Independent, UK; Jan. 2, 2009)
  

• Environment >
  Earth-Friendly Elements, Mined Destructively - Some of the greenest technologies of the age, including e-cars and wind turbines, are made possible by rare earth minerals. Just one problem: These elements come almost entirely from China, from some of the most environmentally damaging mines in the country, in an industry dominated by criminal gangs. (NY Times; Dec. 26, 2009)
  

Resources

Sources

• K&J Magnetics
• AboutMagnets.com Magnets Directory - Your one-stop destination for anything you can think about magnets. This Magnets Directory is designed to help its users find the magnets information, source, companies, products and services.
• Risefull Development Ltd. - Supplier for NdFeB Magnets, Alnico Magnets, SmCo Magnets and Magnetic Assemblies.
• Sens Magnet - Produce high quality casting and sintered AlNiCo and SmCo magnets, and make NdFeB and hard ferrite magnets.
• Ningbo Pole Magnet Co.,Ltd

See also

• Directory:Magnetism
• Directory:Magnet Motors
• Directory:Magnets:Ceramic

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