LED Array Electricity & Magnetism Versatile demos beyond sparks: Use
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Description
LED Array Electricity & Magnetism Versatile demos beyond sparks: Use Versatile demos beyond sparks: Use the high potential to light certain bulbs (like spectrum tubes or a neon wand) without direct contact Why Teachers Love the Density Identification Set Durable classroom design: 12 inch metal tube with clearly labeled colors and wavelengths eye catching way to demonstrate color
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