Simple Machines Simple Lever Model Subcategory_Spectroscopy this fan-shaped nylon brush rides

this fan-shaped nylon brush rides a twisted stainless steel handle flexible enough to bend around difficult interior angles

14 push buttons

this metal helix lets stairwell-scale wave-propagation experiments amplify the visibility of standing waves

Wooden fulcrum-balance simple-machine model with a sliding pivot

delivering the continuous pressurized flow that lifts gliders off the rail for friction-free motion experiments

Simple Machines Simple Lever Model Subcategory_Spectroscopy this fan-shaped nylon brush ridesSeventeen and a half inch wooden simple lever apparatus with an adjustable fulcrum on an 8. 625x2. 25 inch base, supporting both qualitative and quantitative force vs distance student investigations.