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Show JACK FROST'S CLEVER TRICKS Chief Among Them Is Ability to Mak Water That Is Frozen an Exception Excep-tion to the Rule. Jack Frost is a very clever fellow, for not only is he an artist for everyone every-one has seen the beautiful designs ha draws on the window but he also does some wonderful conjuring tricks. As you know, he bursts pipes, and this is how he does it, the Montreal Herald states : First of all, you should remember that "Jack Frost" is merely another name for the extreme winter cold, which is below freezing point. Nearly every substance in nature expands or stretches when heated and contracts or occupies a smaller space when the temperature falls, but water is an exception to this rule. For, though it expands when heated, it does not contract when frozen ; on the contrary, con-trary, it expands once more. You can prove this yourselves on a frosty day by this simple experiment: Fill a bottle with water right up to the cork, and leave it out to freeze over-night. In the morning you will find that the cork is right out of tha neck of the bottle on a piece of ice. Now, this shows that water expands when frozen, and that is exactly what happens when the water freezes In a pipe. It expands and bursts the pipe, and it is not until the water thaws and gushes out that we know about it. |