Pyrometer Linear Expansion Demonstration with Aluminum, Brass, and Iron Bars Chemistry Converts rotation into linear reciprocating

Converts rotation into linear reciprocating motion through a crank-slider linkage

Hand-painted arterial red and venous blue vessels trace the full systemic and pulmonary circulation across a mounted human figure for cardiovascular teaching

Hand-cranked 4-stroke gasoline engine model at 13

providing a high-density bob for pendulum and collision-momentum student investigations

Illustrates high blood pressure effects across brain

Pyrometer Linear Expansion Demonstration with Aluminum, Brass, and Iron Bars Chemistry Converts rotation into linear reciprocatingMetal based linear expansion apparatus with a large dial indicator and three 10 inch rods in aluminum, brass, and iron, letting students quantify expansion coefficients side by side.