Wood and Metal Cylinder for Thermal Demonstration Glass Bottles_Reagent Bottles 625 inches in diameter 625 inches in diameter Hand crank centrifuge spins four 15mL tubes for teaching sedimentation Half wood half metal 200 by 30mm cylinder demonstrating thermal conductivity differences through a wrapped paper that scorches over wood but stays uncharred over metal in flame
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Wood and Metal Cylinder for Thermal Demonstration Glass Bottles_Reagent Bottles 625 inches in diameter