Friction Wheel Drive Mechanical Demonstration Set Subcategory_Rulers and Measuring holding under at least 100

holding under at least 100 Newtons of separation force after hand-evacuation of the air between them

and inner components

conservation of energy

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

Complete set of sixteen tooth-type models at 2x life size supports full-dentition dental anatomy teaching

Friction Wheel Drive Mechanical Demonstration Set Subcategory_Rulers and Measuring holding under at least 100Hand cranked friction wheel drive sandwiched between clear acrylic plates, showing how contact friction alone transmits rotation from one wheel to another in mechanical systems.