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Thumb roller
including minimum assay levels
Ideal for conducting friction experiments in educational settings
ABS case included
easy to use
Cathode Ray Tube - Magnetic field Effect Thumb rollerIncluded: Cathode Ray Tube Magnetic Field Effect Deflection Crookes Tube with Rectangular Plate. Composed of the following parts: glass envelope, grid plate, fluorescent screen, cathode, anode, support. To Demonstrate that cathode ray deflects in magnetic field. Premium Quality: This product is made of high grade construction all the way through, excellent build quality and proven reliability across the range. Designed for use in professional
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