US$ 19.00
Cast-iron-based Gravesande ring-and-ball with a 30mm ball
supplied in five colors at two leads per color so paired wiring stays color-coded across both sides of a circuit
supplying steady low-voltage current to electronics and optics circuits on student benches
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
Student Stethoscope with PVC Tubing and Stainless Steel Binaural Capacity_500mL Cast-iron-based Gravesande ring-and-ball with aPVC tubing and a stainless steel binaural on this student stethoscope let beginners hear heart and lung sounds during basic physiology and anatomy lab work.
US$ 19.00
US$ 49.99
US$ 40.99
US$ 82.57
US$ 15.99
US$ 50.99