Double Long Pulley, 2" and 1.5" Wheels Handle Type_Wood Used to set a tuning

Used to set a tuning fork ringing without bruising its tines

this handle-fitted bicycle wheel lets students feel torque resistance in a spinning mass

sized as the heaviest gauge in the line for high-current electromagnet windings and resistance-vs-length investigations

Research-grade oxygen spectrum tube at 26cm with a 10cm central capillary

and leaf-electroscope demonstrations

Double Long Pulley, 2" and 1.5" Wheels Handle Type_Wood Used to set a tuningUnequal wheel pulley with a 2 inch and a 1. 5 inch wheel at 5. 75 inches overall in a metal frame with end hooks, showing how different wheel diameters change mechanical advantage.