Clear Acrylic Light Pipe, 24 x 0.5" Safety Supplies_Eye Protection visualizing the relationship between local

visualizing the relationship between local motion and seismic recording for geology lessons

adjustable from 0 to 45 degrees with an alignable pulley and included pan and roller

exposing the triangular rotor's epitrochoidal motion with a lamp-lit ignition point

concentric circles

5 inch premium dynamics carts with nylon ball-bearing wheels and end hoops for elastic and inelastic collisions

Clear Acrylic Light Pipe, 24 x 0.5" Safety Supplies_Eye Protection visualizing the relationship between localTwo foot acrylic rod with one end coiled into a 9 inch loop, transmitting light end to end via total internal reflection to give a tabletop analogue of a fiber optic cable.