Description
and polished — letting an infrared sensor compare emissivity at boiling-water temperature
Twelve-position rotary capacitance substitution box selecting one capacitor at a time
this concave glass mirror at 100mm focal length runs at f/1 for vivid real-image demos and converging-reflection work
25-inch frame with draining pins for post-wash inversion and drying
Inertia Demonstration Kit Material_Bristle and polished — letting anDemonstrates 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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