"Ward's Phenomena"
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E.I. Double Convex Glass Lenses
Clearance
Individual spherical glass lenses.
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Glass Equilateral Prisms
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Designed for educational purposes and science classroom demonstrations in optics, light refraction, spectrometry, and wavelengths.
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Pulleys
Clearance
These free-running plastic pulleys are durable in design.
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Decade Inductance Box
Clearance
Investigating Inductance has never been this easy
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Demonstration Bimetallic Strip
Clearance
Vivid Illustration of Thermoexpansion.
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