Why did I make this video?
I am interested in making my own power using magnetic fields. Magnets are such a mystery to me and I have yet to fully understand why they work. How are magnets made? Where do magnets come from? What are magnets made of? These are some of my questions.
Neodymium magnets
I was reading up on magnets, trying to understand better how they are made. I read that the element Neodymium makes up the world’s strongest permanent magnets. I wanted to know more about Neodymium and came across a site that had pictures of the Rare Earth Metals being exposed to air over a time period of 4 years. I was very surprised that Neodymium corrodes so readily in air, which explains why Neodymium magnets are plated or coated by another non-corrosive material, like epoxy or Nickel. I decided to make a quick video showing how Neodymium degrades almost completely in two years. (Experiment and photos found at http://www.elementsales.com/re_exp/. They show all the Rare Earth Metals there – interesting stuff and great experiment. I have no affiliation with their website.)
Permanent Magnets
How long do magnets last? Are “permanent” magnets really permanent? Apparently, even permanent magnets lose their magnetic field over time. [ source: magnetechcorp.com ]
Other References
Picture of magnets from:Â http://www.flickr.com/photos/10240853@N08/
Some information from: http://www.whatareneodymiummagnets.com/faqs.html
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