Laplace Law Demonstration Apparatus Capacity_50mL Polished wood pipette rack holds

Polished wood pipette rack holds 12 pipettes horizontally in an 8

Illuminated solar system model with a socket-lit sun

Built from two counter-rotating foil-sectored plates with a belt drive and a pair of Leyden-jar condensers

Zinc-plated rectangular steel bar-magnet pair packaged with keepers that bridge the poles in storage

Rotary-knob resistance substitution board offering twelve discrete values from 33 ohms to 10M ohms with 4mm lead connections

Laplace Law Demonstration Apparatus Capacity_50mL Polished wood pipette rack holdsAluminium rail Laplace apparatus with a marked mobile bar that moves under 2. 5A of current, illustrating how current direction and field together produce force.