US$ 43.00
Seventy-times enlarged skin cross section reveals epidermis
and wood for multi-material pendulum
and raised-graduated for shatterproof bench use
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
dermal papillae
Hand-Crank Van de Graaff Generator, 100,000V Biology Seventy-times enlarged skin cross sectionHand cranked to convert mechanical work into electrostatic energy, this Van de Graaff generator delivers spark producing high voltage demonstrations in the physics classroom.
US$ 43.00
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