Rolling Friction Hall's Carriages with 4 Wheel Types Item Type_Spoon exposing pulmonary and cardiac anatomy

exposing pulmonary and cardiac anatomy separately or together across a 16

Combines detailed cranial anatomy with a removable life-size brain

Nineteen hardwood three-dimensional geometric shapes in a dovetailed sliding-top case

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

Four developmental stages from primary dentition through permanent mature teeth across eight model pieces support pediatric dental-development teaching

Rolling Friction Hall's Carriages with 4 Wheel Types Item Type_Spoon exposing pulmonary and cardiac anatomyHall'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.