Description
Shows oxygenated and deoxygenated blood paths between heart chambers and alveolar surfaces through seven hand-painted removable parts designed with medical-professional input
Seventy-times enlarged skin cross section reveals epidermis
Ratchet-stopped nickel-plated brass 25 mm micrometer screw gauge reading to 0
ventricles
Hand-Crank Van de Graaff Generator, 100,000V Biology Shows oxygenated and deoxygenated bloodHand cranked to convert mechanical work into electrostatic energy, this Van de Graaff generator delivers spark producing high voltage demonstrations in the physics classroom.
Exchange/Return Notes
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