Magnetic Needle.
Demonstrate the action of a compass and the earth's magnetic field. Our magnetic needle, 145 mm long, has North marked in red and pivots on a sensitive brass and nylon bearing. Non-magnetic support is 9.9 cm high with 5.9 cm round base.
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Demonstrate the action of a compass and the earth's magnetic field. Our magnetic needle, 145 mm long, has North marked in red and pivots on a sensitive brass and nylon bearing. Non-magnetic support is 9.9 cm high with 5.9 cm round base.
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