Maglev trains use powerful magnets that create just the right amount of attraction to keep a train hovering less than an inch above and/or below their tracks. The magnets are also used to propel the trains, taking advantage of the natural repulsion of the two ends of magnetic polarity to push the cars down the line. Although maglev trains can be cheaper to maintain than conventional rail systems, they are a lot more expensive to build and are not compatible with existing rail systems. This, and the far more advanced nature of the technology, has limited the number of real-world maglev systems that have been built. But thanks to YouTuber AmazingScience 君, you can cheaply and easily add your add tracks to the global system.

That is if you were less than a quarter inch tall.

Check out this cool bit of crafty design:

If you had a hard time reading that URL at the end, it's to the AmazingScience 君 YouTube channel.

There are only a few operational maglev train systems serving the public around the world with more testing tracks beyond that. In the United States, there have been studies done and plans written up for maglev lines in California; Baltimore/Washington, D.C.; and Pennsylvania; but nothing has gotten anywhere near ground breaking yet.

While the per-mile cost of building a tiny system like the one seen in the video could get steep, a smaller home system would be a little more economical. Amazon is selling 90 feet of copper wire for less than $8. Could be a fun project for the kids.

Via Reddit

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Shea Gunther is a podcaster, writer, and entrepreneur living in Portland, Maine. He hosts the popular podcast "Marijuana Today Daily" and was a founder of Renewable Choice Energy, the country's leading provider of wind credits and Green Options. He plays a lot of ultimate frisbee and loves bad jokes.

Battery + magnets + copper coil = World's tiniest electric maglev train
You can turn a handful of ingredients into your own miniature magnetic levitation system.