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an Erlenmeyer flask
demonstrating gyroscopic precession
Eight 15 x 10 x 10cm pinhole boxes
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Conical Conductor, 10 x 5cm Category_Glassware an Erlenmeyer flaskTen centimeter brass cone on an ebonite insulator and metal base, demonstrating that electrostatic charge concentrates most densely at the tip where surface curvature is highest.
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