Ripple Tank, Overhead, Dimensions: 15.5inx12inx4in, 6V DC power source and an overhead projector are required, demonstrates the generation, propagation, reflection, interference and diffraction of waves
Concave Mirror, Material: Glass, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, Optically worked, silvered back with protective coating, Size: 2in diameter, 75mm Focal Length
Basic Bed, Full Electric, Deck Style: Split Spring, Length: 80in, Height range: 15in-20in, Headspring supports recessed to resist pinching and injuries, include 2 locking and 2 non-locking casters, Foot assembly recessed, A 9V battery back up, Convenient DC motor box
STORe/FILE Storage Box, Legal, Locking Lid, White/Blue, Double-end, 1 1/2-side, double-bottom construction. Medium-duty for use with or without shelving, 15IN X 10IN X 24IN
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