Fundamental Constants

Gravitational Torsion Balance Replacement Spheres AP-8219

Gravitational Torsion Balance Replacement Spheres
U.S. Educator Price
$824

Replacement Spheres and collars for the Gravitational Torsion Balance (AP-8215A). Designed to convert to Tungsten while maintaining the proper large sphere dimensions. See this product's details for a complete description, specifications, and buying guide.

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