White Screen for Optical Bench, 100 x 100mm Glassware_Glass Sets & Apparatus Millimeter-graduated 15cm Hooke's-Law scale on

Millimeter-graduated 15cm Hooke's-Law scale on a 30cm support rod

4 inch dimensions in aluminum

Classroom-wide polling clicker system enabling real-time student response during lessons

demonstrating mechanical advantage as the angle of incline changes the effort needed to roll the cart up the slope

this electrically maintained tuning fork accepts 2-6V DC at universal binding posts

White Screen for Optical Bench, 100 x 100mm Glassware_Glass Sets & Apparatus Millimeter-graduated 15cm Hooke's-Law scale onMatte white painted screen 100 x 100mm in size, designed to receive real images projected by lenses and concave mirrors during focal length and magnification experiments on the optical bench.