Craft Activities for Kids

Range of art & craft activities for kids. Make cards, masks, gifts and toys using simple, even throw-away things; Crafts & art is fun, we’ll show you how

Camera Stereoscopic Slides

Camera Stereoscopic Slides Have you ever looked through a stereoscope at a pair of pictures and noted how marvelously everything stands out in relief? As you probably know, two picture almost identically alike are needed in order to provide the stereoscopic effect. When the pictures are made by photography, two exposures are necessary, one taken with the lens in the …

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They Change Places

They Change Places This experiment is rather difficult to perform because its success depends on exact conditions; it is, nevertheless, well worth all the trouble you may expend on getting it accurate. Look first at the accompanying drawing. You will see two wine glasses, one inverted over the other. Naturally, this will call for two glasses of exactly similar dimensions. …

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Porous Materials

Porous Materials Practically everything is porous, but some articles are more so than others. In the case of things which are only slightly porous, it requires tremendous pressure to reveal their porosity and, for ordinary purposes, we might say they are non-porous. A piece of sheet tin, for instance, might come under the heading of non-porous bodies, but a postcard …

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