Description

deflecting a pivoting cobalt-steel compass needle inside a rectangular conductor frame to show that current generates a magnetic field

Universal 2-input NOR gate module with red/green LED outputs and a printed truth table

diverging meniscus

Glass-jacketed twin-rod Gunther expansion apparatus with 0

Concave Glass Mirror, 150mm Diameter, 150mm Focal Length Material_Bristle deflecting a pivoting cobalt-steel compassBuilt for maximum light projection demos, a wide 150mm concave glass mirror at 150mm focal length runs at f 1, capturing plenty of flux for vivid magnification and reflector style optics.

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Concave Glass Mirror, 150mm Diameter, 150mm Focal Length Material_Bristle deflecting a pivoting cobalt-steel compass

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