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Brain Spice



Add a touch of interesting science to your desk or lab! The MagnaGlass hourglass is filled with ferromagnetic iron fillings. A magnetic field turns each particle into a tiny bar magnet, so each of them stick together creating amazing patterns. The base contains a magnet, so when you turn over the hourglass, the fillings fall down onto the magnetic field. This fascinating hourglass runs for 1 minute before it needs to be flipped again, creating unique structures every time.