Triple-Long Plastic Pulley with Metal Frame Item Type_Home Furnishing providing a fixed sighting reference

providing a fixed sighting reference for telescope and spectrometer alignment on the optical bench

this simple tangent galvanometer turns Oersted's effect into a quantitative ammeter calibrated against Earth's field

a flexible mounting option for pulley and force demonstrations

the halter design keeping arms free for lab

this eight-fork steel set lets students hear and measure frequency

Triple-Long Plastic Pulley with Metal Frame Item Type_Home Furnishing providing a fixed sighting referenceTriple long plastic pulley set with three stacked wheels at 2, 1. 5, and 1 inches in a metal frame with brass end hooks, configurable for compound pulley force reduction experiments.