Thermal Conductivity Metal Ring with Copper, Iron, Aluminum, and Brass Strips Botany_Botany Charts & Models and rolling-motion experiments on inclined

and rolling-motion experiments on inclined planes

sized to handle both wall-supply and battery-circuit current measurements

and electrostatic discharge

Two-part split heart model on an integrated base separates into right and left hemispheres

Four-meter 6A extension cord with one 3-pin and three 2-pin sockets and a switched indicator-light handle

Thermal Conductivity Metal Ring with Copper, Iron, Aluminum, and Brass Strips Botany_Botany Charts & Models and rolling-motion experiments on inclinedCompares simultaneous heat transfer through copper, iron, brass, and aluminum via four engraved strips radiating from a heated 4. 5 inch metal ring, each strip 5 inches long.