Projection Screen 36 x 48" LabLearner Insulated copper solenoid 155mm long

Insulated copper solenoid 155mm long with a 27mm internal diameter

sized for individual student-lab use in simple-machines units

Designed to grip a wide variety of optical components on standard bench rails

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

Designed to electrolyze water into separately collected hydrogen and oxygen

Projection Screen 36 x 48" LabLearner Insulated copper solenoid 155mm longWall 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"