EXPERIMENT 3 INEXTINGUISHABLE FLAME Place a funnel against the flame of a candle and blow it through the thin end. The flame of candle won’t so much as stir, although the stream of air from the funnel would seem to be striking the flame directly. You might think that the funnel is far way from the flame and bring the flame more near to funnel and blow harder alas you might be shocked because the flame is not deflected away from you but towards you in spite of the fact that you may blow harder, against the stream of air coming form the funnel. What is done to extinguish the flame? It is needed to locate the funnel so that flame is not on the axis of the funnel but in the line of its cone part. Now by blowing into the funnel you will easily extinguishes the candle. This is explained by the fact that air stream leaving the narrow part of the funnel does not propagate along the axis but spreads along the walls of the cone, thus forming a sort of air vortex. But the air along the funnel axis is rarefied with the result that airflow sets in near the axis, thus making it lean toward the funnel.