Description
Wooden-framed abacus with two steel wires of 20 beads each on a 13
letting students rearrange bars to convert between series and parallel topologies on the same set of lamps
with retractable hooks for tandem stacking during physics force experiments
Hard-plastic 13x13-inch Worcester circuit board with 12 metal poles and 4 banana terminals
Molded Lens Holder on Base Subcategory_Dissection Equipment Wooden-framed abacus with two steelMolded lens holder on a stable base, the upright clip steadying a single lens at the working height of a typical ray box or light source setup for consistent image formation work.
Exchange/Return Notes
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