Description

plano-concave

75 to 3 inches across cones

Hand-operated vacuum pump with a 200mm copper pump plate and rubber seal

operating at 4-6V to demonstrate the same electromagnetic motor principles as the larger demo motor in a smaller footprint

designed for image-formation and focal-length investigation

Static and Dynamic Torsion Study Apparatus for Torsional Pendulum Type_Cross-Sectional plano-concaveStudies the simple harmonic motion of a torsional pendulum through a 22. 5 inch plate and rod assembly with central mass, allowing both static and dynamic investigations of torsional spring constant.

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Static and Dynamic Torsion Study Apparatus for Torsional Pendulum Type_Cross-Sectional plano-concave

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