US$ 277.50
sized for energy-storage demonstrations where stored joules need to discharge through a visible load
Virtually friction-free 2-meter air track shipped with vehicles
Built on a leveled cast-iron base with a dual-angle polymer top
and airway anatomy at scale
Wooden Frame Abacus, 6 Steel Wires Chemistry_Molecular Model Sets sized for energy-storage demonstrations whereWooden frame abacus on a 13. 5 by 9. 5 inch finished base, six steel wires carrying 20 beads each for hands on instruction in counting, place value, and basic arithmetic.
US$ 277.50
US$ 35.00
US$ 99.00