Magnetic Viewing Film: Fridge Magnetic Structure

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Magnetic Poles of Refrigerator Magnets: visualizing the invisible with color gradient magnetic viewing film- the secrets of refrigerator magnets revealed: strips of north and south poles. Compared to the two poles at the end of the horseshoe magnet 🧲 the collection of parallel strips seen in the fridge magnet is a special orientation of the magnetic poles called a Halbach array, which allows for the combination of poles to create a strong magnetic field on one side and a very weak one on the other- refrigerator magnets only stick on one side by design! 

Color Gradient Magnetic Viewing Film

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From Amazon: BUY NOW: Color Magnetic Viewing Film

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Color Gradient Magnetic Film: making the invisible visible and revealing the hidden beauty of the physics in our everyday world. Microscopic cavities in this thin film are filled with suspended magnetic nanoparticles that interact with magnetic fields producing different colors from orange (low field strength) to dark blue (high field strength). Here three “fridge magnets” and a coded neodymium magnet show surprising field complexity when placed under this film.