Holder for loose Ø 50 mm lenses and 50 x 50 mm apertures.
The 80 x 72 mm shielding plate incorporates a spring-loaded holder for lenses and apertures from 1 to 16 mm thick.
Excl. saddle.
Replacement Spheres and collars for the Gravitational Torsion Balance (AP-8215A). Designed to convert to Tungsten while maintaining the proper large sphere dimensions.
Allows students to study the behavior of a physical pendulum in either harmonic or chaotic motion.
Designed for experiments involving low light level conditions. ScienceWorkshop version.
Designed to allow the use of a force sensor as a balance.
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.
