Description
and psychology teaching
supporting three-rope compound arrangements for force-distribution experiments
midline structures
sized to stack on a vertical rod for like-pole repulsion levitation demonstrations
Thermo-Hygrometer, 105mm Diameter Science at Home_Math and psychology teachingCombined thermo hygrometer on a 105 mm metal dial pairing a 10 to 50C thermometer with a 0 to 100 percent hygrometer, giving labs and classrooms a single instrument environmental monitor.
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