![](http://focalchanges.com/wp-content/uploads/2011/05/2011_04_30_ZenMagnets-5-150x150.jpg)
My husband loves to play with fidget toys and his latest favorite are Zen Magnets – these are tiny spherical niodinium magnets, precision machined and sold in sets. He walked into my office late last night with a rather fun shape he’d made and we played around with it and lighting a bit to see […]