How to Make a Box Kite

A simple method of constructing a box kite is given in detail as follows: The sticks should be made of straight grained wood, which may be either spruce, basswood or…

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How to Make a Hygrometer at Home

A homemade hygrometer, for determining the degree of moisture in the atmosphere, is shown in the accompanying sketch and consists of a board, A, with a nail at each end…

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How to make a Hygrometer?

How to make a Hygrometer? When you're planning a picnic with your friends, you need to know that the weather will be fine so that you can enjoy yourselves.Many people need…

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