95-Piece Molecular Model Set, 53 Atoms + 42 Bonds (Organic and Inorganic) Capacity_10mL Designed to measure Planck's constant

Designed to measure Planck's constant through the photoelectric effect

and vascular tissue at greatly magnified scale

Reproduces Ewald von Kleist's 1745 charge-storage device with concentric metal cups around a plastic dielectric

glass working

Hand-painted 4-part human brain model separates into cortical hemispheres and brain-stem regions for lobed-anatomy teaching at introductory biology levels

95-Piece Molecular Model Set, 53 Atoms + 42 Bonds (Organic and Inorganic) Capacity_10mL Designed to measure Planck's constantNinety five piece molecular model set with 53 atoms and 42 links spanning organic and inorganic chemistry, including sp3, dsp3, and d2sp3 atoms for hybridization and geometry visualization.