US$ 15.00
semi-circles
this metal helix lets stairwell-scale wave-propagation experiments amplify the visibility of standing waves
each one rotating to follow the local field whenever a magnet is placed beneath the plate or alongside it
configured to contrast eddy-current damping in continuous versus interrupted conductors
4-Step Differential Metal Pulley, 20/30/40/60mm Type_Tall Form semi-circlesFour step differential pulley with 20, 30, 40, and 60mm sheaves on a 4 inch mounting rod, letting students compare force ratios across four different radii in a single assembly.
US$ 15.00
US$ 52.50
US$ 21.70
US$ 48.00
US$ 80.00