Description
and wavelength experiments
a 6V buzzer
exposing tympanic
and probes in a leather storage case
199-piece water lattice kit for building a three-dimensional representation of hydrogen-bonded water molecules
Internal Gear and Pinion Drive Mechanical Demonstration Model Item Type_Weights and wavelength experimentsHand cranked internal gear and pinion between two clear plastic plates, with dual rotation dials for quantitative analysis of gear ratios and rotary motion transmission.
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