Oersted's Apparatus Geology Parallelogram-of-forces apparatus on a 26

Parallelogram-of-forces apparatus on a 26 by 20 inch wall-mountable board with two clamp-on pulleys

Nylon ball-bearing pulley with a bench-clamp fitting for edge-mounting on a worktable

Sixty-five-piece molecular model set with 32 atoms and 33 bonds for demonstrating bonding angles

Square die-cast alloy boss head with metal thumbscrews

Bulk 144-pack of pre-cleaned 75 x 25mm glass microscope slides features frosted labeling ends and ground polished edges for high-volume teaching labs

Oersted's Apparatus Geology Parallelogram-of-forces apparatus on a 26Reproduces Oersted's 1820 experiment, deflecting a pivoting cobalt steel compass needle inside a rectangular conductor frame to show that current generates a magnetic field.