Introduction: Diamagnetic Levitation Platform
In this instructable I will show you how to make a very simple diamagnetic levitation platform with only three parts.
Step 1: What You Will Need
1. Pyrolytic Graphite
2. At least four 1/4" x 1/4" x 1/8" Neodymium Magnets. I used 16 but you can use as many as you want to make a larger platform.
3. Ferrite tile, steel plate or and other ferromagnetic sheet stock you might have.
You can buy a small demo kit here: http://amzn.to/1HZzdYw
Step 2: Assembly
Orient the magnets on the plate by alternating the magnetic poles as follows:
Row 1 // N-S-N-S
Row 2 // S-N-S-N
Row 3 // N-S-N-S
Row 4 // S-N-S-N
Use a compass to determine the poles of the magnets. The purpose of the plate is to prevent the magnets from collapsing on themselves.
Step 3: How It Works
Pyrolytic graphite is a very diamagnetic material. This means that it repels both poles of a magnet. Placing the magnets next to each other with alternating poles results in voids where the fields cancel out. The pyrolytic graphite levitates in those voids of the magnetic fields.
Notice how the larger piece of pyrolytic graphite likes to be in a square where as the small piece likes to orient in the center of 4 magnets and the corners line up with the gaps between the magnets.
You could make a track the the pyrolytic graphite rides on. All you need to do is make the track three magnets wide with the center strip the opposite pole of the sides. The pyrolytic graphite will be trapped in the center of the track and when pushed, it will ride the track.
Step 4: Thank You
Thanks for taking the time to read this instructable. Let me know if you have any questions and vote for me in the 3 ingredients contest. If not, that's ok too.
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