US$ 29.99
and copper
Reproduces Ewald von Kleist's 1745 charge-storage device with concentric metal cups around a plastic dielectric
Designed to measure Planck's constant through the photoelectric effect
each foam-protected in a wooden case with frequencies labeled
and vascular tissue at greatly magnified scale
95-Piece Molecular Model Set, 53 Atoms + 42 Bonds (Organic and Inorganic) Capacity_10mL and copperNinety 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.
US$ 29.99
US$ 83.55
US$ 83.55
US$ 72.55
US$ 83.55
US$ 80.25
US$ 83.55
US$ 79.15