Last year I saw a video on Youtube, it was simple to make. Just have a jar with water, some sparkles and liquid soap. Simply shape the jar and wonderful tornado would appear. The tornado would die soon and needed to stir it often. My solution : Magnetic stirrerMagnetic Stirrer are used in labs to s...
By: Amit_Jain
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from Instructables: exploring - technology - robots http://ift.tt/1N9jD2N
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