Overhead Projector, 250 x 250mm Platform Diameter_250mm demonstrating the mechanism behind crankshaft

demonstrating the mechanism behind crankshaft pistons and steering racks

Pairs a wide 100mm aperture with a 150mm focal length

Separating Funnel made from high quality

sized to keep electromagnetism demonstrations running when the original coils wear out

5mm copper wire on a clear acrylic base support side-by-side comparison of how loop count multiplies the on-axis magnetic field at fixed current

Overhead Projector, 250 x 250mm Platform Diameter_250mm demonstrating the mechanism behind crankshaftClassroom overhead projector with 250 x 250mm transparency platform projects handwritten and printed materials onto a wall or screen for group instruction.