Description

leaving inertia to drop the ball straight into the waiting receptacle below

levitating above one another when oriented with like poles facing

varying length isolating density as the single variable across materials

which also mounts to bench edges and boards of equal thickness

Ventilation Demonstration Apparatus, 8.7 x 6.5 x 4" Capacity_50mL leaving inertia to drop theLarge format 8. 7 by 6. 5 by 4 inch ventilation apparatus modeling historic mine gallery airflow and domestic chimney convection through a candle driven hot air rise demonstration.

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Ventilation Demonstration Apparatus, 8.7 x 6.5 x 4" Capacity_50mL leaving inertia to drop the

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