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Product Number: SB30028M
Price: $17.45 A quick and clean way to visualize magnetic fields. The unit is a transparent acrylic case that holds iron filings in a fluid of proper viscosity. Simply place a magnet (bar magnet, horseshoe magne... More. |
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3-D Magnetic Field Demonstrator Product Number: SB39179MPrice: $32.25 Allows students to observe magnetic fields in three as well as two dimensions. This unique device consists of two half hexagonal acrylic containers with metal filings. The two parts, connected with... More. |