Clear Acrylic Light Pipe, 24 x 0.5" Safety Supplies_Eye Protection interference - within reach of

interference - within reach of an introductory wave-mechanics curriculum

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

transparent housing revealing the hydropower conversion inside the casing

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

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 interference - within reach ofTwo 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.