Planck's Constant Determination Box Material_Hardwood Plastic-bodied wave apparatus with eccentric

Plastic-bodied wave apparatus with eccentric discs that drive metal rods up and down as the handle turns

Built to grip round flasks and condensers during distillation or reflux

5-inch female pelvis model demonstrates 9-month pregnancy anatomy and fetal positioning before delivery for obstetrics teaching

Thirty-two-inch advanced pulley demonstration set with 8 singles

Planck's Constant Determination Box Material_Hardwood Plastic-bodied wave apparatus with eccentricDesigned to measure Planck's constant through the photoelectric effect, relating photon frequency to the kinetic energy of emitted electrons for quantum physics investigations.