Description

the smallest in the bar-magnet series

this wooden block-and-tackle apparatus lets students count supporting strands and measure how each added pulley reduces effort

Single-decade resistance box stepping from 1k ohm to 10k ohms in 1k-ohm increments on a rotary dial

NPN transistor in a protective enclosure with labeled base

Crookes Radiometer, 2.75" (70mm) Diameter, on Plastic Base Subcategory_Racks and Stands the smallest in the bar-magnetEvacuated 2. 75 inch glass bulb on a plastic base with black and white vanes that spin under light exposure, the classic demonstration of differential radiant heat absorption.

Exchange/Return Notes

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Crookes Radiometer, 2.75" (70mm) Diameter, on Plastic Base Subcategory_Racks and Stands the smallest in the bar-magnet

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