Fundamental Constants

Gravitational Torsion Balance AP-8215A

Gravitational Torsion Balance
U.S. Educator Price
$2,369

Combines features that significantly improve the ease of setup, the durability of the Torsion Band and the quality of results. In the newer models the spheres are tungsten rather than lead. See this product's details for a complete description, specifications, and buying guide.

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