Show power of a drop of Water you have probably heard beard that the constant failing ailing of a drop ot of water will wear away the hardest stone hero here Is an easy way may to test the force ot of a single water drop which wo we will take as a unit for all the billions of water drops it takes to wear away the stone and then perhaps you may get a slight idea of 0 tile ahe stupendous force all those water drops would mould exert if they were combined into one nam narn moth water drop and it dropped you mould nt care to bo be under it cut a notch in the center of a match then bend so as to form an acute angle lay it a cross across the mouth i match coin and water drop of as a bottle and place a penny on the match you are now ready to demonstrate demons S the force of the water drop and also ready to do a neat little a trick to surprise some friend ask your friend to get the coin into the bottle without touching either the match or the bottle after be has puzzled over it for a while dip your finger in a glass of water hold it above the place where the match Is notched and let a drop fall on the point the power of the water star as it strikes the match la Is strong enough to force the sides of the angle to spring apart thus making the opening largo large enough tor for the pan penny to tall fall into the bottle your trick is performed white while the water drops power Is illustrated at the same time |