Projection Screen 36 x 48" LabLearner providing a measurable projection surface

providing a measurable projection surface for sizing real images formed by lenses and concave mirrors

Adjustable mass on one fork shifts its 440Hz pitch by a few hertz

paired with 4mm sockets so iron-filing patterns can be mapped around a current-carrying conductor for Oersted's experiment

Designed to electrolyze water into separately collected hydrogen and oxygen

the polished 90-45-45-degree faces redirecting light at right angles for total internal reflection demos

Projection Screen 36 x 48" LabLearner providing a measurable projection surfaceWall automatic roll back spring action screens (box type casing), with hooks for mounting on walls and an AUTOMATIC roller mechanism for winding. Wall automatic roll back spring action screens (box type casing), with hooks for mounting on walls and an AUTOMATIC roller mechanism for winding. Size : 36 x 48"