Laplace Rail for Magnetic Field Demonstration, 11.75 x 3" Coating_Vinyl 25-inch gear train simple-machine model

25-inch gear train simple-machine model arrives ready to use with no assembly required

and major vessels of the human heart

registering induced or conducted charge through the Coulomb-driven deflection of a single suspended leaf

providing a quick swap-in reference for general-purpose AC-circuit and timing-experiment work

5 inch dynamics carts in solid wood and aluminum with nylon ball-bearing wheels

Laplace Rail for Magnetic Field Demonstration, 11.75 x 3" Coating_Vinyl 25-inch gear train simple-machine modelOpen Laplace rail with a free moving conductor and 4mm sockets, letting students watch the wire travel along the rail as roughly 3A of current crosses the magnetic field.