US$ 214.50
and a central control module
ovary chambers
the wider face area handling broader incident beams for refraction and wavelength experiments
with retractable hooks for tandem stacking during physics force experiments
Electrostatic Friction Rod Kit, 3 Cloths and 3 Rods Type_Round End and a central control moduleElectrostatic friction rod kit pairing wool, cotton, and silk cloths with glass, ebonite, and acrylic rods for triboelectric charge generation experiments in series.
US$ 214.50
US$ 12.99
US$ 15.00
US$ 59.99