Aluminum Replacement Rod for Thermal Linear Expansion Apparatus Item Type_Scoop Conical lamp house with a

Conical lamp house with a 240V/15W bayonet-cap pygmy lamp on a 6mm metal rod

with thermometer tubulure and glass manometer for calibrating thermometer upper fixed points under steam

and inner ear sections support detailed auditory anatomy teaching at 3x enlargement for classroom visibility

this brass ball and ring fit freely at room temperature and stick tight once the ball is heated and expanded

Aluminum Replacement Rod for Thermal Linear Expansion Apparatus Item Type_Scoop Conical lamp house with aMachined 19 11 16 by 1 4 inch aluminum rod sized as a replacement for thermal linear expansion apparatus, supporting comparative measurement of expansion coefficients across different metals.