Rolling Friction Hall's Carriages with 4 Wheel Types Item Type_Spoon Five-ohm reference coil non-inductively wound

Five-ohm reference coil non-inductively wound from double silk-covered constantan inside a transparent tube

75 inches of usable track gives upper-division optics setups the rigidity needed for lens

Feed indicator is in front and fed setting is at back of microtome which sets 1-50 micron

exposing pulmonary and cardiac anatomy separately or together across a 16

featuring fine-mesh muslin netting

Rolling Friction Hall's Carriages with 4 Wheel Types Item Type_Spoon Five-ohm reference coil non-inductively woundHall's pattern carriage set of four ABS cars with different wheel types, sized to compare rolling friction coefficients across surfaces and demonstrate how wheel design affects energy loss.