Hand-Crank Van de Graaff Generator, 100,000V Biology Diamond lattice kit with 39

Diamond lattice kit with 39 carbon atoms and 60 connectors for building the tetrahedral covalent network that gives diamond its exceptional hardness and optical properties

ventricles

and wood for multi-material pendulum

Shows oxygenated and deoxygenated blood paths between heart chambers and alveolar surfaces through seven hand-painted removable parts designed with medical-professional input

and sacrum bones with articulations

Hand-Crank Van de Graaff Generator, 100,000V Biology Diamond lattice kit with 39Hand cranked to convert mechanical work into electrostatic energy, this Van de Graaff generator delivers spark producing high voltage demonstrations in the physics classroom.