Inertia Demonstration Kit Material_Bristle 25-inch frame with draining pins

25-inch frame with draining pins for post-wash inversion and drying

Twelve-position rotary capacitance substitution box selecting one capacitor at a time

Aluminum 40cm precision force table with tapped pulley positions and central ring assembly for resolving and composing force vectors under equilibrium conditions

Hard vulcanized ebonite rod that takes on a strong negative charge when rubbed with fur

and magnetic-property variations

Inertia Demonstration Kit Material_Bristle 25-inch frame with draining pinsDemonstrates Newton's first law by yanking a metal card from beneath a steel ball, leaving inertia to drop the ball straight into the waiting receptacle below.