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Show SALT WATER MORE BUOYANT Fact That Is Well Known to Mariners May Be News to Some of Ou,' Readers. A boy dropped a ball Into a small hole and could not get it out, so he poured water Into the hole, thinking the ball would float to the surface. As the ball was slightly heavier than the water wa-ter It remained on .the bot tom. Then the boy thought of mixing salt with the water, since he knew suit water would float heavier objects than frenh water would. He tried this and was rewarded reward-ed with the floating bull. This particular fact Is demonstrated at the moutiis of rivers. Objects rolling roll-ing along the bottom of a river, too heavy to come to the top, will rise when carried out to s-a. The rule also applies to bouts. A ship with a cargo on the sea will sink sometimes a foot or two on entering a fresh water port If she leaves the port with her cargo, she will rise on entering the ocean. For tmu rensen a ship may be loaded apparently too heavily at a pier and still be all right on the waves. In building a dam, tho fact of salt water's being heaner than fresh must t remembered. Ksnaai City Star. |