US$ 136.07
Nine removable sections expose cortical hemispheres
Hand-painted skin cross-section enlarged 300 times exposes epidermal layers
Rotary-knob resistance substitution board offering twelve discrete values from 33 ohms to 10M ohms with 4mm lead connections
Illuminated solar system model with a socket-lit sun
Glass convex mirror at 100mm diameter and 150mm focal length
Laplace Law Demonstration Apparatus Capacity_50mL Nine removable sections expose corticalAluminium rail Laplace apparatus with a marked mobile bar that moves under 2. 5A of current, illustrating how current direction and field together produce force.
US$ 136.07
US$ 477.23
US$ 114.49
US$ 140.50
US$ 212.13
US$ 124.49
US$ 135.12
US$ 34.95