Made of steel, half red & half blue ( for N & S ) spray painted, with keepers.
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Made of steel, 12 x 5 mm in pairs ; half red & half blue (for N & S) spray painted, with keepers.
Barlow Wheel for demonstrating the conversion of electric energy into mechanical energy. Star shaped copper disc 9cm dia. rotatable vertically on pair of adjustable centres and dipping
50 mm x 50mm magnetic square rubber sheet.
Size: 50 x 10 x 5 mm
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