Worm Gear Drive Mechanical Demonstration Set Heat & Thermodynamics_Pressure & Gas Laws illustrating the high-ratio speed reduction

illustrating the high-ratio speed reduction and self-locking action of worm gearing

this simple-circuit kit supplies batteries

Two-hundred-fifty-gram push-pull balance in an acrylic tubular body

Simulates kinetic gas theory through an electric motor vibrating a transparent tube of small steel balls

and resonance relationships

Worm Gear Drive Mechanical Demonstration Set Heat & Thermodynamics_Pressure & Gas Laws illustrating the high-ratio speed reductionHand cranked worm and wheel drive with a rotation dial between clear acrylic plates, illustrating the high ratio speed reduction and self locking action of worm gearing.