Student Stethoscope with PVC Tubing and Stainless Steel Binaural Capacity_500mL Designed to make turns-ratio behavior

Designed to make turns-ratio behavior tactile

Cast-iron-based Gravesande ring-and-ball with a 30mm ball

sized for low-current circuit work below the 1A range where finer resolution matters more than full-scale capacity

Length-adjustable wooden pendulum simple-machine model with a blue bob sliding along the string and a wooden guide keeping the swing on a consistent path for period-vs-length measurements

supplying steady low-voltage current to electronics and optics circuits on student benches

Student Stethoscope with PVC Tubing and Stainless Steel Binaural Capacity_500mL Designed to make turns-ratio behaviorPVC tubing and a stainless steel binaural on this student stethoscope let beginners hear heart and lung sounds during basic physiology and anatomy lab work.