Simple Manual Motor Model with 2 Magnets, 5.5" Pack Size_100 this wooden block-and-tackle apparatus lets

this wooden block-and-tackle apparatus lets students count supporting strands and measure how each added pulley reduces effort

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

Standard rheostat at 2

and foot-anatomy teaching

Sliding-top wooden box 7 x 2 x 1 inches

Simple Manual Motor Model with 2 Magnets, 5.5" Pack Size_100 this wooden block-and-tackle apparatus letsHand cranked simple motor model on a 5. 5 inch base with two labeled magnets and 4mm sockets, demonstrating magnet action, induced current, and the alternator principle with stationary inductors.