While visiting at my daughter's house with the grand-kids, I always like to do experiments. About a year ago, the kids and I built some homopolar motors. Lots of fun. This trip, I saw some "snake eggs" at Dollar Tree - bought a bunch and took them home and starting playing. We ended up with some coupling (and de-coupling) between the mag-eggs which I find amusing - and so did the grand-kids and adults! http://youtu.be/h78zDQDBzUgHow to explain this behavior? I really don't know yet... But its fun to observe!
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