Description

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

and HVAC work

Benchtop hydro-electric power station at 13 by 9 by 7

this concave glass mirror at 100mm focal length runs at f/1 for vivid real-image demos and converging-reflection work

ventricles

Inertia Demonstration Kit Material_Bristle Twelve-position rotary capacitance substitution boxDemonstrates 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.

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Inertia Demonstration Kit Material_Bristle Twelve-position rotary capacitance substitution box

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