US$ 124.15
2A with constantan winding on a vitreous-enameled steel tube and a nickel-plated phosphor-bronze sliding contact
Shows oxygenated and deoxygenated blood paths between heart chambers and alveolar surfaces through seven hand-painted removable parts designed with medical-professional input
Built for kitchen science whimsy
Entry-level two-part human skull model separates the skull cap to reveal the cranial cavity for introductory head-anatomy teaching at secondary and college levels
Demonstrates Newton's first law by yanking a metal card from beneath a steel ball
Linear Expansion Apparatus with Gauge and 3 Rods Subcategory_Temperature and Heat 2A with constantan winding onDial gauge expansion apparatus with three interchangeable metal rods for heating and measuring the small length change each metal undergoes, illustrating linear thermal expansion.