Electromagnet Terrella

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This Electromagnet Terrella is hand made by Artisan Fred Cobbs and is made of wood and soldered metal. Handles do turn. Piece is signed and dated by Artisan. An electromagnetic ter rella (Latin for "little earth") is a magnetized sphere used in laboratory experiments to simulate the Earth's magnetic field and its interaction with plasma or charged particles. Originally developed using natural magnets, modern versions use electromagnets within a vacuum chamber to recreate geophysical phenomena such as the aurora and the magnetosphere. Size:2 1/2"W x 1 3/8"D x 1 7/8"H 1:12 Scale **This Piece is a Consignment Item Show more