Do Submarines Have Anchors?
Do Submarines Have Anchors? They sure do. Submarines need anchors for the same reason that other ships do. Any time a submarine needs to maintain its position on the...
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How Far Is It to the Center of the Earth?
How Far Is It to the Center of the Earth? If you could drill a hole to the center of the Earth, you would find it measured about 3,958 miles (6,371 kilometers). The...
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Why Do We Get Pimples?
Why Do We Get Pimples? Pimples are a condition of the skin in which the pores, or tiny openings, of the oil glands become blocked. Tiny glands below the surface of the...
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Can Two People Have Identical Fingerprints?
Can Two People Have Identical Fingerprints? If there is one thing in the world you have that nobody else has, it’s your very own fingerprints. See the loops and...
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Why Does a Glass Crack When Hot Water Is Poured into It?
Why Does a Glass Crack When Hot Water Is Poured into It? An ordinary drinking glass may crack if you pour hot water into it. Glass expands, or swells, when it is made...
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