Enhanced Optical Bench Set with Lamp Housing Subcategory_Temperature and Heat Speed controlled 6V motor driving two Speed controlled 6V motor driving two cams pumps four spring mass systems at any chosen frequency this handle fitted bicycle wheel lets students feel torque resistance in a spinning mass Designed for comprehensive lens this enhanced optical bench set ships with a lamp housing and a matched complement of optical components
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Enhanced Optical Bench Set with Lamp Housing Subcategory_Temperature and Heat Speed-controlled 6V motor driving two