Magnetic nail polish is one of the hottesttrends in the beauty business right now and those who take pride in having perfectly manicured paws are all for this latest innovation. Combining physics and fashion, magnetic nail polish produces unique threedimensional patterns when it comes into contact with the supplied magnet on the lid. The polish itself contains fine iron filings, which respond to the magnet during the drying process. In fact, the filings themselves turn into miniature bar magnets when under the influence of a magnetic field, because they contain highly mobile electrons. It’s because of this that patterns will emerge, as each fine piece of metal has a south and north pole, so they align themselves with the magnetic field lines of the original magnet. The shape and force of the magnet on the lid will also vary results, so it’s possible to get some really unique nail-art effects
Understanding magnetic nails with bar magnets
Attracting Poles Iron filings are ferromagnetic, which means they become miniature bar magnets when under the influence of a magnetic field.
Magnetic Field Every magnet has a magnetic field surrounding it, which will affect some metals, in this case iron filings. The filings form a pattern as they line up in the direction of the magnetic field lines.
Repelling magnets Magnetic poles that are the same will repel one another and opposites attract, so some iron filings will be forced away from the magnet. This helps to create a distinct pattern.
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