
The name Neodymium originates from the Greek words 'neos' meaning new and 'didymos' meaning twin. It was discovered by Baron Carl Auer von Welsbach in Vienna, Austria in 1885; however it took another 40 years to isolate it in its relatively pure form in 1925. He separated neodymium, as well as the element praseodymium, from a material known as didymium by means of fractional crystallization. Sounds complicated? It is, so I won't go into it here, but suffice to say as scientific understanding evolved so the purity of the finished product improved and can now be produced to a purity of 99.99%. Neodymium magnets are made from a combination of Neodymium, Iron and Boron and are extremely powerful, this increased strength has inspired some new applications such as magnetic jewellery clasps and magnetic building sets for children and herein lies the fun aspect.
One such inspiration is the Wiki M-Cube it's a puzzle like you have never seen before! It consists of 216 highly magnetic Neodymium rare earth magnets with a durable nickel plated surface, far more powerful than your average fridge magnets. Each one has a north and south polarity, allowing you to make a myriad of different shapes and patterns in both 2D and 3D. There is no one solution, but it is a puzzle if you choose to set yourself challenging targets. Even returning the cube to its original shape once dismantled is harder than it sounds. It can be shaped into funky jewellery or sculpted into inspiring shapes and when you get bored with your creation you just have to start again. It will entertain you for hours and can help to relieve stress, develop the creative side of your brain and relieve boredom. It makes the perfect executive toy and would look stylish on any office desk. Your kids will also love it and you'll be prising it out of their nimble fingers at every opportunity (though not for children under 36 months due to small parts). However, take heed, once you start, you cannot put it down, it’s seriously addictive!
So , neodymium for science or for fun? Try the Wiki M-Cube then decide! I think your kids will agree that physics just got that little bit more interesting.